1# This file is in the public domain, so clarified as of 2# 2009-05-17 by Arthur David Olson. 3 4# This file is by no means authoritative; if you think you know better, 5# go ahead and edit the file (and please send any changes to 6# tz@iana.org for general use in the future). For more, please see 7# the file CONTRIBUTING in the tz distribution. 8 9# From Paul Eggert (2015-08-08): 10# 11# Unless otherwise specified, the source for data through 1990 is: 12# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition), 13# San Diego: ACS Publications, Inc. (2003). 14# Unfortunately this book contains many errors and cites no sources. 15# 16# Gwillim Law writes that a good source 17# for recent time zone data is the International Air Transport 18# Association's Standard Schedules Information Manual (IATA SSIM), 19# published semiannually. Law sent in several helpful summaries 20# of the IATA's data after 1990. Except where otherwise noted, 21# IATA SSIM is the source for entries after 1990. 22# 23# Another source occasionally used is Edward W. Whitman, World Time Differences, 24# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which 25# I found in the UCLA library. 26# 27# For data circa 1899, a common source is: 28# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94. 29# http://www.jstor.org/stable/1774359 30# 31# For Russian data circa 1919, a source is: 32# Byalokoz EL. New Counting of Time in Russia since July 1, 1919. 33# (See the 'europe' file for a fuller citation.) 34# 35# A reliable and entertaining source about time zones is 36# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997). 37# 38# I invented the abbreviations marked '*' in the following table; 39# the rest are from earlier versions of this file, or from other sources. 40# Corrections are welcome! 41# std dst 42# LMT Local Mean Time 43# 2:00 EET EEST Eastern European Time 44# 2:00 IST IDT Israel 45# 3:00 AST ADT Arabia* 46# 3:30 IRST IRDT Iran* 47# 4:00 GST Gulf* 48# 5:30 IST India 49# 7:00 ICT Indochina, most times and locations* 50# 7:00 WIB west Indonesia (Waktu Indonesia Barat) 51# 8:00 WITA central Indonesia (Waktu Indonesia Tengah) 52# 8:00 CST China 53# 8:00 IDT Indochina, 1943-45, 1947-55, 1960-75 (some locations)* 54# 8:00 JWST Western Standard Time (Japan, 1896/1937)* 55# 8:30 KST KDT Korea when at +0830* 56# 9:00 JCST Central Standard Time (Japan, 1896/1937) 57# 9:00 WIT east Indonesia (Waktu Indonesia Timur) 58# 9:00 JST JDT Japan 59# 9:00 KST KDT Korea when at +09 60# 9:30 ACST Australian Central Standard Time 61# 62# See the 'europe' file for Russia and Turkey in Asia. 63 64# From Guy Harris: 65# Incorporates data for Singapore from Robert Elz' asia 1.1, as well as 66# additional information from Tom Yap, Sun Microsystems Intercontinental 67# Technical Support (including a page from the Official Airline Guide - 68# Worldwide Edition). The names for time zones are guesses. 69 70############################################################################### 71 72# These rules are stolen from the 'europe' file. 73# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 74Rule EUAsia 1981 max - Mar lastSun 1:00u 1:00 S 75Rule EUAsia 1979 1995 - Sep lastSun 1:00u 0 - 76Rule EUAsia 1996 max - Oct lastSun 1:00u 0 - 77Rule E-EurAsia 1981 max - Mar lastSun 0:00 1:00 S 78Rule E-EurAsia 1979 1995 - Sep lastSun 0:00 0 - 79Rule E-EurAsia 1996 max - Oct lastSun 0:00 0 - 80Rule RussiaAsia 1981 1984 - Apr 1 0:00 1:00 S 81Rule RussiaAsia 1981 1983 - Oct 1 0:00 0 - 82Rule RussiaAsia 1984 1995 - Sep lastSun 2:00s 0 - 83Rule RussiaAsia 1985 2011 - Mar lastSun 2:00s 1:00 S 84Rule RussiaAsia 1996 2011 - Oct lastSun 2:00s 0 - 85 86# Afghanistan 87# Zone NAME GMTOFF RULES FORMAT [UNTIL] 88Zone Asia/Kabul 4:36:48 - LMT 1890 89 4:00 - AFT 1945 90 4:30 - AFT 91 92# Armenia 93# From Paul Eggert (2006-03-22): 94# Shanks & Pottenger have Yerevan switching to 3:00 (with Russian DST) 95# in spring 1991, then to 4:00 with no DST in fall 1995, then 96# readopting Russian DST in 1997. Go with Shanks & Pottenger, even 97# when they disagree with others. Edgar Der-Danieliantz 98# reported (1996-05-04) that Yerevan probably wouldn't use DST 99# in 1996, though it did use DST in 1995. IATA SSIM (1991/1998) reports that 100# Armenia switched from 3:00 to 4:00 in 1998 and observed DST after 1991, 101# but started switching at 3:00s in 1998. 102 103# From Arthur David Olson (2011-06-15): 104# While Russia abandoned DST in 2011, Armenia may choose to 105# follow Russia's "old" rules. 106 107# From Alexander Krivenyshev (2012-02-10): 108# According to News Armenia, on Feb 9, 2012, 109# http://newsarmenia.ru/society/20120209/42609695.html 110# 111# The Armenia National Assembly adopted final reading of Amendments to the 112# Law "On procedure of calculation time on the territory of the Republic of 113# Armenia" according to which Armenia [is] abolishing Daylight Saving Time. 114# or 115# (brief) 116# http://www.worldtimezone.com/dst_news/dst_news_armenia03.html 117# Zone NAME GMTOFF RULES FORMAT [UNTIL] 118Zone Asia/Yerevan 2:58:00 - LMT 1924 May 2 119 3:00 - YERT 1957 Mar # Yerevan Time 120 4:00 RussiaAsia YER%sT 1991 Mar 31 2:00s 121 3:00 1:00 YERST 1991 Sep 23 # independence 122 3:00 RussiaAsia AM%sT 1995 Sep 24 2:00s 123 4:00 - AMT 1997 124 4:00 RussiaAsia AM%sT 2012 Feb 9 125 4:00 - AMT 126 127# Azerbaijan 128 129# From Rustam Aliyev of the Azerbaijan Internet Forum (2005-10-23): 130# According to the resolution of Cabinet of Ministers, 1997 131# From Paul Eggert (2015-09-17): It was Resolution No. 21 (1997-03-17). 132# http://code.az/files/daylight_res.pdf 133 134# From Steffen Thorsen (2016-03-17): 135# ... the Azerbaijani Cabinet of Ministers has cancelled switching to 136# daylight saving time.... 137# http://www.azernews.az/azerbaijan/94137.html 138# http://vestnikkavkaza.net/news/Azerbaijani-Cabinet-of-Ministers-cancels-daylight-saving-time.html 139# http://en.apa.az/xeber_azerbaijan_abolishes_daylight_savings_ti_240862.html 140 141# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 142Rule Azer 1997 2015 - Mar lastSun 4:00 1:00 S 143Rule Azer 1997 2015 - Oct lastSun 5:00 0 - 144# Zone NAME GMTOFF RULES FORMAT [UNTIL] 145Zone Asia/Baku 3:19:24 - LMT 1924 May 2 146 3:00 - BAKT 1957 Mar # Baku Time 147 4:00 RussiaAsia BAK%sT 1991 Mar 31 2:00s 148 3:00 1:00 BAKST 1991 Aug 30 # independence 149 3:00 RussiaAsia AZ%sT 1992 Sep lastSun 2:00s 150 4:00 - AZT 1996 # Azerbaijan Time 151 4:00 EUAsia AZ%sT 1997 152 4:00 Azer AZ%sT 153 154# Bahrain 155# See Asia/Qatar. 156 157# Bangladesh 158# From Alexander Krivenyshev (2009-05-13): 159# According to newspaper Asian Tribune (May 6, 2009) Bangladesh may introduce 160# Daylight Saving Time from June 16 to Sept 30 161# 162# Bangladesh to introduce daylight saving time likely from June 16 163# http://www.asiantribune.com/?q=node/17288 164# http://www.worldtimezone.com/dst_news/dst_news_bangladesh02.html 165# 166# "... Bangladesh government has decided to switch daylight saving time from 167# June 168# 16 till September 30 in a bid to ensure maximum use of daylight to cope with 169# crippling power crisis. " 170# 171# The switch will remain in effect from June 16 to Sept 30 (2009) but if 172# implemented the next year, it will come in force from April 1, 2010 173 174# From Steffen Thorsen (2009-06-02): 175# They have finally decided now, but changed the start date to midnight between 176# the 19th and 20th, and they have not set the end date yet. 177# 178# Some sources: 179# http://in.reuters.com/article/southAsiaNews/idINIndia-40017620090601 180# http://bdnews24.com/details.php?id=85889&cid=2 181# 182# Our wrap-up: 183# http://www.timeanddate.com/news/time/bangladesh-daylight-saving-2009.html 184 185# From A. N. M. Kamrus Saadat (2009-06-15): 186# Finally we've got the official mail regarding DST start time where DST start 187# time is mentioned as Jun 19 2009, 23:00 from BTRC (Bangladesh 188# Telecommunication Regulatory Commission). 189# 190# No DST end date has been announced yet. 191 192# From Alexander Krivenyshev (2009-09-25): 193# Bangladesh won't go back to Standard Time from October 1, 2009, 194# instead it will continue DST measure till the cabinet makes a fresh decision. 195# 196# Following report by same newspaper-"The Daily Star Friday": 197# "DST change awaits cabinet decision-Clock won't go back by 1-hr from Oct 1" 198# http://www.thedailystar.net/newDesign/news-details.php?nid=107021 199# http://www.worldtimezone.com/dst_news/dst_news_bangladesh04.html 200 201# From Steffen Thorsen (2009-10-13): 202# IANS (Indo-Asian News Service) now reports: 203# Bangladesh has decided that the clock advanced by an hour to make 204# maximum use of daylight hours as an energy saving measure would 205# "continue for an indefinite period." 206# 207# One of many places where it is published: 208# http://www.thaindian.com/newsportal/business/bangladesh-to-continue-indefinitely-with-advanced-time_100259987.html 209 210# From Alexander Krivenyshev (2009-12-24): 211# According to Bangladesh newspaper "The Daily Star," 212# Bangladesh will change its clock back to Standard Time on Dec 31, 2009. 213# 214# Clock goes back 1-hr on Dec 31 night. 215# http://www.thedailystar.net/newDesign/news-details.php?nid=119228 216# http://www.worldtimezone.com/dst_news/dst_news_bangladesh05.html 217# 218# "...The government yesterday decided to put the clock back by one hour 219# on December 31 midnight and the new time will continue until March 31, 220# 2010 midnight. The decision came at a cabinet meeting at the Prime 221# Minister's Office last night..." 222 223# From Alexander Krivenyshev (2010-03-22): 224# According to Bangladesh newspaper "The Daily Star," 225# Cabinet cancels Daylight Saving Time 226# http://www.thedailystar.net/newDesign/latest_news.php?nid=22817 227# http://www.worldtimezone.com/dst_news/dst_news_bangladesh06.html 228 229# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 230Rule Dhaka 2009 only - Jun 19 23:00 1:00 S 231Rule Dhaka 2009 only - Dec 31 24:00 0 - 232 233# Zone NAME GMTOFF RULES FORMAT [UNTIL] 234Zone Asia/Dhaka 6:01:40 - LMT 1890 235 5:53:20 - HMT 1941 Oct # Howrah Mean Time? 236 6:30 - BURT 1942 May 15 # Burma Time 237 5:30 - IST 1942 Sep 238 6:30 - BURT 1951 Sep 30 239 6:00 - DACT 1971 Mar 26 # Dacca Time 240 6:00 - BDT 2009 241 6:00 Dhaka BD%sT 242 243# Bhutan 244# Zone NAME GMTOFF RULES FORMAT [UNTIL] 245Zone Asia/Thimphu 5:58:36 - LMT 1947 Aug 15 # or Thimbu 246 5:30 - IST 1987 Oct 247 6:00 - BTT # Bhutan Time 248 249# British Indian Ocean Territory 250# Whitman and the 1995 CIA time zone map say 5:00, but the 251# 1997 and later maps say 6:00. Assume the switch occurred in 1996. 252# We have no information as to when standard time was introduced; 253# assume it occurred in 1907, the same year as Mauritius (which 254# then contained the Chagos Archipelago). 255# Zone NAME GMTOFF RULES FORMAT [UNTIL] 256Zone Indian/Chagos 4:49:40 - LMT 1907 257 5:00 - IOT 1996 # BIOT Time 258 6:00 - IOT 259 260# Brunei 261# Zone NAME GMTOFF RULES FORMAT [UNTIL] 262Zone Asia/Brunei 7:39:40 - LMT 1926 Mar # Bandar Seri Begawan 263 7:30 - BNT 1933 264 8:00 - BNT 265 266# Burma / Myanmar 267 268# Milne says 6:24:40 was the meridian of the time ball observatory at Rangoon. 269 270# Zone NAME GMTOFF RULES FORMAT [UNTIL] 271Zone Asia/Rangoon 6:24:40 - LMT 1880 # or Yangon 272 6:24:40 - RMT 1920 # Rangoon Mean Time? 273 6:30 - BURT 1942 May # Burma Time 274 9:00 - JST 1945 May 3 275 6:30 - MMT # Myanmar Time 276 277# Cambodia 278# See Asia/Bangkok. 279 280 281# China 282 283# From Guy Harris: 284# People's Republic of China. Yes, they really have only one time zone. 285 286# From Bob Devine (1988-01-28): 287# No they don't. See TIME mag, 1986-02-17 p.52. Even though 288# China is across 4 physical time zones, before Feb 1, 1986 only the 289# Peking (Beijing) time zone was recognized. Since that date, China 290# has two of 'em - Peking's and Ürümqi (named after the capital of 291# the Xinjiang Uyghur Autonomous Region). I don't know about DST for it. 292# 293# . . .I just deleted the DST table and this editor makes it too 294# painful to suck in another copy. So, here is what I have for 295# DST start/end dates for Peking's time zone (info from AP): 296# 297# 1986 May 4 - Sept 14 298# 1987 mid-April - ?? 299 300# From U. S. Naval Observatory (1989-01-19): 301# CHINA 8 H AHEAD OF UTC ALL OF CHINA, INCL TAIWAN 302# CHINA 9 H AHEAD OF UTC APR 17 - SEP 10 303 304# From Paul Eggert (2008-02-11): 305# Jim Mann, "A clumsy embrace for another western custom: China on daylight 306# time - sort of", Los Angeles Times, 1986-05-05 ... [says] that China began 307# observing daylight saving time in 1986. 308 309# From Paul Eggert (2014-06-30): 310# Shanks & Pottenger have China switching to a single time zone in 1980, but 311# this doesn't seem to be correct. They also write that China observed summer 312# DST from 1986 through 1991, which seems to match the above commentary, so 313# go with them for DST rules as follows: 314# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 315Rule Shang 1940 only - Jun 3 0:00 1:00 D 316Rule Shang 1940 1941 - Oct 1 0:00 0 S 317Rule Shang 1941 only - Mar 16 0:00 1:00 D 318Rule PRC 1986 only - May 4 0:00 1:00 D 319Rule PRC 1986 1991 - Sep Sun>=11 0:00 0 S 320Rule PRC 1987 1991 - Apr Sun>=10 0:00 1:00 D 321 322# From Anthony Fok (2001-12-20): 323# BTW, I did some research on-line and found some info regarding these five 324# historic timezones from some Taiwan websites. And yes, there are official 325# Chinese names for these locales (before 1949). 326# 327# From Jesper Nørgaard Welen (2006-07-14): 328# I have investigated the timezones around 1970 on the 329# http://www.astro.com/atlas site [with provinces and county 330# boundaries summarized below].... A few other exceptions were two 331# counties on the Sichuan side of the Xizang-Sichuan border, 332# counties Dege and Baiyu which lies on the Sichuan side and are 333# therefore supposed to be GMT+7, Xizang region being GMT+6, but Dege 334# county is GMT+8 according to astro.com while Baiyu county is GMT+6 335# (could be true), for the moment I am assuming that those two 336# counties are mistakes in the astro.com data. 337 338# From Paul Eggert (2014-06-30): 339# Alois Treindl kindly sent me translations of the following two sources: 340# 341# (1) 342# Guo Qingsheng (National Time-Service Center, CAS, Xi'an 710600, China) 343# Beijing Time at the Beginning of the PRC 344# China Historical Materials of Science and Technology 345# (Zhongguo ke ji shi liao, 中国科技史料), Vol. 24, No. 1 (2003) 346# It gives evidence that at the beginning of the PRC, Beijing time was 347# officially apparent solar time! However, Guo also says that the 348# evidence is dubious, as the relevant institute of astronomy had not 349# been taken over by the PRC yet. It's plausible that apparent solar 350# time was announced but never implemented, and that people continued 351# to use UT+8. As the Shanghai radio station (and I presume the 352# observatory) was still under control of French missionaries, it 353# could well have ignored any such mandate. 354# 355# (2) 356# Guo Qing-sheng (Shaanxi Astronomical Observatory, CAS, Xi'an 710600, China) 357# A Study on the Standard Time Changes for the Past 100 Years in China 358# [undated and unknown publication location] 359# It says several things: 360# * The Qing dynasty used local apparent solar time throughout China. 361# * The Republic of China instituted Beijing mean solar time effective 362# the official calendar book of 1914. 363# * The French Concession in Shanghai set up signal stations in 364# French docks in the 1890s, controlled by Xujiahui (Zikawei) 365# Observatory and set to local mean time. 366# * "From the end of the 19th century" it changed to UT+8. 367# * Chinese Customs (by then reduced to a tool of foreign powers) 368# eventually standardized on this time for all ports, and it 369# became used by railways as well. 370# * In 1918 the Central Observatory proposed dividing China into 371# five time zones (see below for details). This caught on 372# at first only in coastal areas observing UT+8. 373# * During WWII all of China was in theory was at UT+7. In practice 374# this was ignored in the west, and I presume was ignored in 375# Japanese-occupied territory. 376# * Japanese-occupied Manchuria was at UT+9, i.e., Japan time. 377# * The five-zone plan was resurrected after WWII and officially put into 378# place (with some modifications) in March 1948. It's not clear 379# how well it was observed in areas under Nationalist control. 380# * The People's Liberation Army used UT+8 during the civil war. 381# 382# An AP article "Shanghai Internat'l Area Little Changed" in the 383# Lewiston (ME) Daily Sun (1939-05-29), p 17, said "Even the time is 384# different - the occupied districts going by Tokyo time, an hour 385# ahead of that prevailing in the rest of Shanghai." Guess that the 386# Xujiahui Observatory was under French control and stuck with UT+8. 387# 388# In earlier versions of this file, China had many separate Zone entries, but 389# this was based on what were apparently incorrect data in Shanks & Pottenger. 390# This has now been simplified to the two entries Asia/Shanghai and 391# Asia/Urumqi, with the others being links for backward compatibility. 392# Proposed in 1918 and theoretically in effect until 1949 (although in practice 393# mainly observed in coastal areas), the five zones were: 394# 395# Changbai Time ("Long-white Time", Long-white = Heilongjiang area) UT+8.5 396# Asia/Harbin (currently a link to Asia/Shanghai) 397# Heilongjiang (except Mohe county), Jilin 398# 399# Zhongyuan Time ("Central plain Time") UT+8 400# Asia/Shanghai 401# most of China 402# This currently represents most other zones as well, 403# as apparently these regions have been the same since 1970. 404# Milne gives 8:05:43.2 for Xujiahui Observatory time; round to nearest. 405# Guo says Shanghai switched to UT+8 "from the end of the 19th century". 406# 407# Long-shu Time (probably due to Long and Shu being two names of that area) UT+7 408# Asia/Chongqing (currently a link to Asia/Shanghai) 409# Guangxi, Guizhou, Hainan, Ningxia, Sichuan, Shaanxi, and Yunnan; 410# most of Gansu; west Inner Mongolia; west Qinghai; and the Guangdong 411# counties Deqing, Enping, Kaiping, Luoding, Taishan, Xinxing, 412# Yangchun, Yangjiang, Yu'nan, and Yunfu. 413# 414# Xin-zang Time ("Xinjiang-Tibet Time") UT+6 415# Asia/Urumqi 416# This currently represents Kunlun Time as well, 417# as apparently the two regions have been the same since 1970. 418# The Gansu counties Aksay, Anxi, Dunhuang, Subei; west Qinghai; 419# the Guangdong counties Xuwen, Haikang, Suixi, Lianjiang, 420# Zhanjiang, Wuchuan, Huazhou, Gaozhou, Maoming, Dianbai, and Xinyi; 421# east Tibet, including Lhasa, Chamdo, Shigaise, Jimsar, Shawan and Hutubi; 422# east Xinjiang, including Ürümqi, Turpan, Karamay, Korla, Minfeng, Jinghe, 423# Wusu, Qiemo, Xinyan, Wulanwusu, Jinghe, Yumin, Tacheng, Tuoli, Emin, 424# Shihezi, Changji, Yanqi, Heshuo, Tuokexun, Tulufan, Shanshan, Hami, 425# Fukang, Kuitun, Kumukuli, Miquan, Qitai, and Turfan. 426# 427# Kunlun Time UT+5.5 428# Asia/Kashgar (currently a link to Asia/Urumqi) 429# West Tibet, including Pulan, Aheqi, Shufu, Shule; 430# West Xinjiang, including Aksu, Atushi, Yining, Hetian, Cele, Luopu, Nileke, 431# Zhaosu, Tekesi, Gongliu, Chabuchaer, Huocheng, Bole, Pishan, Suiding, 432# and Yarkand. 433 434# From Luther Ma (2009-10-17): 435# Almost all (>99.9%) ethnic Chinese (properly ethnic Han) living in 436# Xinjiang use Chinese Standard Time. Some are aware of Xinjiang time, 437# but have no need of it. All planes, trains, and schools function on 438# what is called "Beijing time." When Han make an appointment in Chinese 439# they implicitly use Beijing time. 440# 441# On the other hand, ethnic Uyghurs, who make up about half the 442# population of Xinjiang, typically use "Xinjiang time" which is two 443# hours behind Beijing time, or UTC +0600. The government of the Xinjiang 444# Uyghur Autonomous Region, (XAUR, or just Xinjiang for short) as well as 445# local governments such as the Ürümqi city government use both times in 446# publications, referring to what is popularly called Xinjiang time as 447# "Ürümqi time." When Uyghurs make an appointment in the Uyghur language 448# they almost invariably use Xinjiang time. 449# 450# (Their ethnic Han compatriots would typically have no clue of its 451# widespread use, however, because so extremely few of them are fluent in 452# Uyghur, comparable to the number of Anglo-Americans fluent in Navajo.) 453# 454# (...As with the rest of China there was a brief interval ending in 1990 455# or 1991 when summer time was in use. The confusion was severe, with 456# the province not having dual times but four times in use at the same 457# time. Some areas remained on standard Xinjiang time or Beijing time and 458# others moving their clocks ahead.) 459 460# From Luther Ma (2009-11-19): 461# With the risk of being redundant to previous answers these are the most common 462# English "transliterations" (w/o using non-English symbols): 463# 464# 1. Wulumuqi... 465# 2. Kashi... 466# 3. Urumqi... 467# 4. Kashgar... 468# ... 469# 5. It seems that Uyghurs in Ürümqi has been using Xinjiang since at least the 470# 1960's. I know of one Han, now over 50, who grew up in the surrounding 471# countryside and used Xinjiang time as a child. 472# 473# 6. Likewise for Kashgar and the rest of south Xinjiang I don't know of any 474# start date for Xinjiang time. 475# 476# Without having access to local historical records, nor the ability to legally 477# publish them, I would go with October 1, 1949, when Xinjiang became the Uyghur 478# Autonomous Region under the PRC. (Before that Uyghurs, of course, would also 479# not be using Beijing time, but some local time.) 480 481# From David Cochrane (2014-03-26): 482# Just a confirmation that Ürümqi time was implemented in Ürümqi on 1 Feb 1986: 483# http://content.time.com/time/magazine/article/0,9171,960684,00.html 484 485# From Luther Ma (2014-04-22): 486# I have interviewed numerous people of various nationalities and from 487# different localities in Xinjiang and can confirm the information in Guo's 488# report regarding Xinjiang, as well as the Time article reference by David 489# Cochrane. Whether officially recognized or not (and both are officially 490# recognized), two separate times have been in use in Xinjiang since at least 491# the Cultural Revolution: Xinjiang Time (XJT), aka Ürümqi Time or local time; 492# and Beijing Time. There is no confusion in Xinjiang as to which name refers 493# to which time. Both are widely used in the province, although in some 494# population groups might be use one to the exclusion of the other. The only 495# problem is that computers and smart phones list Ürümqi (or Kashgar) as 496# having the same time as Beijing. 497 498# From Paul Eggert (2014-06-30): 499# In the early days of the PRC, Tibet was given its own time zone (UT+6) but 500# this was withdrawn in 1959 and never reinstated; see Tubten Khétsun, 501# Memories of life in Lhasa under Chinese Rule, Columbia U Press, ISBN 502# 978-0231142861 (2008), translator's introduction by Matthew Akester, p x. 503# As this is before our 1970 cutoff, Tibet doesn't need a separate zone. 504# 505# Xinjiang Time is well-documented as being officially recognized. E.g., see 506# "The Working-Calendar for The Xinjiang Uygur Autonomous Region Government" 507# <http://www.sinkiang.gov.cn/service/ourworking/> (2014-04-22). 508# Unfortunately, we have no good records of time in Xinjiang before 1986. 509# During the 20th century parts of Xinjiang were ruled by the Qing dynasty, 510# the Republic of China, various warlords, the First and Second East Turkestan 511# Republics, the Soviet Union, the Kuomintang, and the People's Republic of 512# China, and tracking down all these organizations' timekeeping rules would be 513# quite a trick. Approximate this lost history by a transition from LMT to 514# XJT at the start of 1928, the year of accession of the warlord Jin Shuren, 515# which happens to be the date given by Shanks & Pottenger (no doubt as a 516# guess) as the transition from LMT. Ignore the usage of UT+8 before 517# 1986-02-01 under the theory that the transition date to UT+8 is unknown and 518# that the sort of users who prefer Asia/Urumqi now typically ignored the 519# UT+8 mandate back then. 520 521# Zone NAME GMTOFF RULES FORMAT [UNTIL] 522# Beijing time, used throughout China; represented by Shanghai. 523Zone Asia/Shanghai 8:05:43 - LMT 1901 524 8:00 Shang C%sT 1949 525 8:00 PRC C%sT 526# Xinjiang time, used by many in western China; represented by Ürümqi / Ürümchi 527# / Wulumuqi. (Please use Asia/Shanghai if you prefer Beijing time.) 528Zone Asia/Urumqi 5:50:20 - LMT 1928 529 6:00 - XJT 530 531 532# Hong Kong (Xianggang) 533 534# Milne gives 7:36:41.7; round this. 535 536# From Lee Yiu Chung (2009-10-24): 537# I found there are some mistakes for the...DST rule for Hong 538# Kong. [According] to the DST record from Hong Kong Observatory (actually, 539# it is not [an] observatory, but the official meteorological agency of HK, 540# and also serves as the official timing agency), there are some missing 541# and incorrect rules. Although the exact switch over time is missing, I 542# think 3:30 is correct. The official DST record for Hong Kong can be 543# obtained from 544# http://www.hko.gov.hk/gts/time/Summertime.htm 545 546# From Arthur David Olson (2009-10-28): 547# Here are the dates given at 548# http://www.hko.gov.hk/gts/time/Summertime.htm 549# as of 2009-10-28: 550# Year Period 551# 1941 1 Apr to 30 Sep 552# 1942 Whole year 553# 1943 Whole year 554# 1944 Whole year 555# 1945 Whole year 556# 1946 20 Apr to 1 Dec 557# 1947 13 Apr to 30 Dec 558# 1948 2 May to 31 Oct 559# 1949 3 Apr to 30 Oct 560# 1950 2 Apr to 29 Oct 561# 1951 1 Apr to 28 Oct 562# 1952 6 Apr to 25 Oct 563# 1953 5 Apr to 1 Nov 564# 1954 21 Mar to 31 Oct 565# 1955 20 Mar to 6 Nov 566# 1956 18 Mar to 4 Nov 567# 1957 24 Mar to 3 Nov 568# 1958 23 Mar to 2 Nov 569# 1959 22 Mar to 1 Nov 570# 1960 20 Mar to 6 Nov 571# 1961 19 Mar to 5 Nov 572# 1962 18 Mar to 4 Nov 573# 1963 24 Mar to 3 Nov 574# 1964 22 Mar to 1 Nov 575# 1965 18 Apr to 17 Oct 576# 1966 17 Apr to 16 Oct 577# 1967 16 Apr to 22 Oct 578# 1968 21 Apr to 20 Oct 579# 1969 20 Apr to 19 Oct 580# 1970 19 Apr to 18 Oct 581# 1971 18 Apr to 17 Oct 582# 1972 16 Apr to 22 Oct 583# 1973 22 Apr to 21 Oct 584# 1973/74 30 Dec 73 to 20 Oct 74 585# 1975 20 Apr to 19 Oct 586# 1976 18 Apr to 17 Oct 587# 1977 Nil 588# 1978 Nil 589# 1979 13 May to 21 Oct 590# 1980 to Now Nil 591# The page does not give start or end times of day. 592# The page does not give a start date for 1942. 593# The page does not givw an end date for 1945. 594# The Japanese occupation of Hong Kong began on 1941-12-25. 595# The Japanese surrender of Hong Kong was signed 1945-09-15. 596# For lack of anything better, use start of those days as the transition times. 597 598# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 599Rule HK 1941 only - Apr 1 3:30 1:00 S 600Rule HK 1941 only - Sep 30 3:30 0 - 601Rule HK 1946 only - Apr 20 3:30 1:00 S 602Rule HK 1946 only - Dec 1 3:30 0 - 603Rule HK 1947 only - Apr 13 3:30 1:00 S 604Rule HK 1947 only - Dec 30 3:30 0 - 605Rule HK 1948 only - May 2 3:30 1:00 S 606Rule HK 1948 1951 - Oct lastSun 3:30 0 - 607Rule HK 1952 only - Oct 25 3:30 0 - 608Rule HK 1949 1953 - Apr Sun>=1 3:30 1:00 S 609Rule HK 1953 only - Nov 1 3:30 0 - 610Rule HK 1954 1964 - Mar Sun>=18 3:30 1:00 S 611Rule HK 1954 only - Oct 31 3:30 0 - 612Rule HK 1955 1964 - Nov Sun>=1 3:30 0 - 613Rule HK 1965 1976 - Apr Sun>=16 3:30 1:00 S 614Rule HK 1965 1976 - Oct Sun>=16 3:30 0 - 615Rule HK 1973 only - Dec 30 3:30 1:00 S 616Rule HK 1979 only - May Sun>=8 3:30 1:00 S 617Rule HK 1979 only - Oct Sun>=16 3:30 0 - 618# Zone NAME GMTOFF RULES FORMAT [UNTIL] 619Zone Asia/Hong_Kong 7:36:42 - LMT 1904 Oct 30 620 8:00 HK HK%sT 1941 Dec 25 621 9:00 - JST 1945 Sep 15 622 8:00 HK HK%sT 623 624############################################################################### 625 626# Taiwan 627 628# From smallufo (2010-04-03): 629# According to Taiwan's CWB [Central Weather Bureau], 630# http://www.cwb.gov.tw/V6/astronomy/cdata/summert.htm 631# Taipei has DST in 1979 between July 1st and Sep 30. 632 633# From Yu-Cheng Chuang (2013-07-12): 634# On Dec 28, 1895, the Meiji Emperor announced Ordinance No. 167 of 635# Meiji Year 28 "The clause about standard time", mentioned that 636# Taiwan and Penghu Islands, as well as Yaeyama and Miyako Islands 637# (both in Okinawa) adopt the Western Standard Time which is based on 638# 120E. The adoption began from Jan 1, 1896. The original text can be 639# found on Wikisource: 640# http://ja.wikisource.org/wiki/標準時ニ關スル件_(公布時) 641# ... This could be the first adoption of time zone in Taiwan, because 642# during the Qing Dynasty, it seems that there was no time zone 643# declared officially. 644# 645# Later, in the beginning of World War II, on Sep 25, 1937, the Showa 646# Emperor announced Ordinance No. 529 of Showa Year 12 "The clause of 647# revision in the ordinance No. 167 of Meiji year 28 about standard 648# time", in which abolished the adoption of Western Standard Time in 649# western islands (listed above), which means the whole Japan 650# territory, including later occupations, adopt Japan Central Time 651# (UTC+9). The adoption began on Oct 1, 1937. The original text can 652# be found on Wikisource: 653# http://ja.wikisource.org/wiki/明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件 654# 655# That is, the time zone of Taipei switched to UTC+9 on Oct 1, 1937. 656 657# From Yu-Cheng Chuang (2014-07-02): 658# I've found more evidence about when the time zone was switched from UTC+9 659# back to UTC+8 after WW2. I believe it was on Sep 21, 1945. In a document 660# during Japanese era [1] in which the officer told the staff to change time 661# zone back to Western Standard Time (UTC+8) on Sep 21. And in another 662# history page of National Cheng Kung University [2], on Sep 21 there is a 663# note "from today, switch back to Western Standard Time". From these two 664# materials, I believe that the time zone change happened on Sep 21. And 665# today I have found another monthly journal called "The Astronomical Herald" 666# from The Astronomical Society of Japan [3] in which it mentioned the fact 667# that: 668# 669# 1. Standard Time of the Country (Japan) was adopted on Jan 1, 1888, using 670# the time at 135E (GMT+9) 671# 672# 2. Standard Time of the Country was renamed to Central Standard Time, on Jan 673# 1, 1898, and on the same day, the new territories Taiwan and Penghu islands, 674# as well as Yaeyama and Miyako islands, adopted a new time zone called 675# Western Standard Time, which is in GMT+8. 676# 677# 3. Western Standard Time was deprecated on Sep 30, 1937. From then all the 678# territories of Japan adopted the same time zone, which is Central Standard 679# Time. 680# 681# [1] Academica Historica, Taiwan: 682# http://163.29.208.22:8080/govsaleShowImage/connect_img.php?s=00101738900090036&e=00101738900090037 683# [2] Nat'l Cheng Kung University 70th Anniversary Special Site: 684# http://www.ncku.edu.tw/~ncku70/menu/001/01_01.htm 685# [3] Yukio Niimi, The Standard Time in Japan (1997), p.475: 686# http://www.asj.or.jp/geppou/archive_open/1997/pdf/19971001c.pdf 687 688# Yu-Cheng Chuang (2014-07-03): 689# I finally have found the real official gazette about changing back to 690# Western Standard Time on Sep 21 in Taiwan. It's Taiwan Governor-General 691# Bulletin No. 386 in Showa 20 years (1945), published on Sep 19, 1945. [1] ... 692# [It] abolishes Bulletin No. 207 in Showa 12 years (1937), which is a local 693# bulletin in Taiwan for that Ordinance No. 529. It also mentioned that 1am on 694# Sep 21, 1945 will be 12am on Sep 21. I think this bulletin is much more 695# official than the one I mentioned in my first mail, because it's from the 696# top-level government in Taiwan. If you're going to quote any resource, this 697# would be a good one. 698# [1] Taiwan Governor-General Gazette, No. 1018, Sep 19, 1945: 699# http://db2.th.gov.tw/db2/view/viewImg.php?imgcode=0072031018a&num=19&bgn=019&end=019&otherImg=&type=gener 700 701# From Yu-Cheng Chuang (2014-07-02): 702# In 1946, DST in Taiwan was from May 15 and ended on Sep 30. The info from 703# Central Weather Bureau website was not correct. 704# 705# Original Bulletin: 706# http://subtpg.tpg.gov.tw/og/image2.asp?f=03502F0AKM1AF 707# http://subtpg.tpg.gov.tw/og/image2.asp?f=0350300AKM1B0 (cont.) 708# 709# In 1947, DST in Taiwan was expanded to Oct 31. There is a backup of that 710# telegram announcement from Taiwan Province Government: 711# 712# http://subtpg.tpg.gov.tw/og/image2.asp?f=0360310AKZ431 713# 714# Here is a brief translation: 715# 716# The Summer Time this year is adopted from midnight Apr 15 until Sep 20 717# midnight. To save (energy?) consumption, we're expanding Summer Time 718# adoption till Oct 31 midnight. 719# 720# The Central Weather Bureau website didn't mention that, however it can 721# be found from historical government announcement database. 722 723# From Paul Eggert (2014-07-03): 724# As per Yu-Cheng Chuang, say that Taiwan was at UT+9 from 1937-10-01 725# until 1945-09-21 at 01:00, overriding Shanks & Pottenger. 726# Likewise, use Yu-Cheng Chuang's data for DST in Taiwan. 727 728# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 729Rule Taiwan 1946 only - May 15 0:00 1:00 D 730Rule Taiwan 1946 only - Oct 1 0:00 0 S 731Rule Taiwan 1947 only - Apr 15 0:00 1:00 D 732Rule Taiwan 1947 only - Nov 1 0:00 0 S 733Rule Taiwan 1948 1951 - May 1 0:00 1:00 D 734Rule Taiwan 1948 1951 - Oct 1 0:00 0 S 735Rule Taiwan 1952 only - Mar 1 0:00 1:00 D 736Rule Taiwan 1952 1954 - Nov 1 0:00 0 S 737Rule Taiwan 1953 1959 - Apr 1 0:00 1:00 D 738Rule Taiwan 1955 1961 - Oct 1 0:00 0 S 739Rule Taiwan 1960 1961 - Jun 1 0:00 1:00 D 740Rule Taiwan 1974 1975 - Apr 1 0:00 1:00 D 741Rule Taiwan 1974 1975 - Oct 1 0:00 0 S 742Rule Taiwan 1979 only - Jul 1 0:00 1:00 D 743Rule Taiwan 1979 only - Oct 1 0:00 0 S 744 745# Zone NAME GMTOFF RULES FORMAT [UNTIL] 746# Taipei or Taibei or T'ai-pei 747Zone Asia/Taipei 8:06:00 - LMT 1896 Jan 1 748 8:00 - JWST 1937 Oct 1 749 9:00 - JST 1945 Sep 21 1:00 750 8:00 Taiwan C%sT 751 752# Macau (Macao, Aomen) 753# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 754Rule Macau 1961 1962 - Mar Sun>=16 3:30 1:00 S 755Rule Macau 1961 1964 - Nov Sun>=1 3:30 0 - 756Rule Macau 1963 only - Mar Sun>=16 0:00 1:00 S 757Rule Macau 1964 only - Mar Sun>=16 3:30 1:00 S 758Rule Macau 1965 only - Mar Sun>=16 0:00 1:00 S 759Rule Macau 1965 only - Oct 31 0:00 0 - 760Rule Macau 1966 1971 - Apr Sun>=16 3:30 1:00 S 761Rule Macau 1966 1971 - Oct Sun>=16 3:30 0 - 762Rule Macau 1972 1974 - Apr Sun>=15 0:00 1:00 S 763Rule Macau 1972 1973 - Oct Sun>=15 0:00 0 - 764Rule Macau 1974 1977 - Oct Sun>=15 3:30 0 - 765Rule Macau 1975 1977 - Apr Sun>=15 3:30 1:00 S 766Rule Macau 1978 1980 - Apr Sun>=15 0:00 1:00 S 767Rule Macau 1978 1980 - Oct Sun>=15 0:00 0 - 768# Zone NAME GMTOFF RULES FORMAT [UNTIL] 769Zone Asia/Macau 7:34:20 - LMT 1912 Jan 1 770 8:00 Macau MO%sT 1999 Dec 20 # return to China 771 8:00 PRC C%sT 772 773 774############################################################################### 775 776# Cyprus 777# 778# Milne says the Eastern Telegraph Company used 2:14:00. Stick with LMT. 779# 780# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 781Rule Cyprus 1975 only - Apr 13 0:00 1:00 S 782Rule Cyprus 1975 only - Oct 12 0:00 0 - 783Rule Cyprus 1976 only - May 15 0:00 1:00 S 784Rule Cyprus 1976 only - Oct 11 0:00 0 - 785Rule Cyprus 1977 1980 - Apr Sun>=1 0:00 1:00 S 786Rule Cyprus 1977 only - Sep 25 0:00 0 - 787Rule Cyprus 1978 only - Oct 2 0:00 0 - 788Rule Cyprus 1979 1997 - Sep lastSun 0:00 0 - 789Rule Cyprus 1981 1998 - Mar lastSun 0:00 1:00 S 790# Zone NAME GMTOFF RULES FORMAT [UNTIL] 791Zone Asia/Nicosia 2:13:28 - LMT 1921 Nov 14 792 2:00 Cyprus EE%sT 1998 Sep 793 2:00 EUAsia EE%sT 794# IATA SSIM (1998-09) has Cyprus using EU rules for the first time. 795 796# Classically, Cyprus belongs to Asia; e.g. see Herodotus, Histories, I.72. 797# However, for various reasons many users expect to find it under Europe. 798Link Asia/Nicosia Europe/Nicosia 799 800# Georgia 801# From Paul Eggert (1994-11-19): 802# Today's _Economist_ (p 60) reports that Georgia moved its clocks forward 803# an hour recently, due to a law proposed by Zurab Murvanidze, 804# an MP who went on a hunger strike for 11 days to force discussion about it! 805# We have no details, but we'll guess they didn't move the clocks back in fall. 806# 807# From Mathew Englander, quoting AP (1996-10-23 13:05-04): 808# Instead of putting back clocks at the end of October, Georgia 809# will stay on daylight savings time this winter to save energy, 810# President Eduard Shevardnadze decreed Wednesday. 811# 812# From the BBC via Joseph S. Myers (2004-06-27): 813# 814# Georgia moved closer to Western Europe on Sunday... The former Soviet 815# republic has changed its time zone back to that of Moscow. As a result it 816# is now just four hours ahead of Greenwich Mean Time, rather than five hours 817# ahead. The switch was decreed by the pro-Western president of Georgia, 818# Mikheil Saakashvili, who said the change was partly prompted by the process 819# of integration into Europe. 820 821# From Teimuraz Abashidze (2005-11-07): 822# Government of Georgia ... decided to NOT CHANGE daylight savings time on 823# [Oct.] 30, as it was done before during last more than 10 years. 824# Currently, we are in fact GMT +4:00, as before 30 October it was GMT 825# +3:00.... The problem is, there is NO FORMAL LAW or governmental document 826# about it. As far as I can find, I was told, that there is no document, 827# because we just DIDN'T ISSUE document about switching to winter time.... 828# I don't know what can be done, especially knowing that some years ago our 829# DST rules where changed THREE TIMES during one month. 830 831# Milne 1899 says Tbilisi (Tiflis) time was 2:59:05.7. 832# Byalokoz 1919 says Georgia was 2:59:11. 833# Go with Byalokoz. 834 835# Zone NAME GMTOFF RULES FORMAT [UNTIL] 836Zone Asia/Tbilisi 2:59:11 - LMT 1880 837 2:59:11 - TBMT 1924 May 2 # Tbilisi Mean Time 838 3:00 - TBIT 1957 Mar # Tbilisi Time 839 4:00 RussiaAsia TBI%sT 1991 Mar 31 2:00s 840 3:00 1:00 TBIST 1991 Apr 9 # independence 841 3:00 RussiaAsia GE%sT 1992 # Georgia Time 842 3:00 E-EurAsia GE%sT 1994 Sep lastSun 843 4:00 E-EurAsia GE%sT 1996 Oct lastSun 844 4:00 1:00 GEST 1997 Mar lastSun 845 4:00 E-EurAsia GE%sT 2004 Jun 27 846 3:00 RussiaAsia GE%sT 2005 Mar lastSun 2:00 847 4:00 - GET 848 849# East Timor 850 851# See Indonesia for the 1945 transition. 852 853# From João Carrascalão, brother of the former governor of East Timor, in 854# East Timor may be late for its millennium 855# <http://etan.org/et99c/december/26-31/30ETMAY.htm> (1999-12-26/31): 856# Portugal tried to change the time forward in 1974 because the sun 857# rises too early but the suggestion raised a lot of problems with the 858# Timorese and I still don't think it would work today because it 859# conflicts with their way of life. 860 861# From Paul Eggert (2000-12-04): 862# We don't have any record of the above attempt. 863# Most likely our records are incomplete, but we have no better data. 864 865# From Manoel de Almeida e Silva, Deputy Spokesman for the UN Secretary-General 866# http://www.hri.org/news/world/undh/2000/00-08-16.undh.html 867# (2000-08-16): 868# The Cabinet of the East Timor Transition Administration decided 869# today to advance East Timor's time by one hour. The time change, 870# which will be permanent, with no seasonal adjustment, will happen at 871# midnight on Saturday, September 16. 872 873# Zone NAME GMTOFF RULES FORMAT [UNTIL] 874Zone Asia/Dili 8:22:20 - LMT 1912 Jan 1 875 8:00 - TLT 1942 Feb 21 23:00 # E Timor Time 876 9:00 - JST 1945 Sep 23 877 9:00 - TLT 1976 May 3 878 8:00 - WITA 2000 Sep 17 0:00 879 9:00 - TLT 880 881# India 882 883# From Ian P. Beacock, in "A brief history of (modern) time", The Atlantic 884# http://www.theatlantic.com/technology/archive/2015/12/the-creation-of-modern-time/421419/ 885# (2015-12-22): 886# In January 1906, several thousand cotton-mill workers rioted on the 887# outskirts of Bombay.... They were protesting the proposed abolition of 888# local time in favor of Indian Standard Time.... Journalists called this 889# dispute the "Battle of the Clocks." It lasted nearly half a century. 890 891# Zone NAME GMTOFF RULES FORMAT [UNTIL] 892Zone Asia/Kolkata 5:53:28 - LMT 1880 # Kolkata 893 5:53:20 - HMT 1941 Oct # Howrah Mean Time? 894 6:30 - BURT 1942 May 15 # Burma Time 895 5:30 - IST 1942 Sep 896 5:30 1:00 IST 1945 Oct 15 897 5:30 - IST 898# The following are like Asia/Kolkata: 899# Andaman Is 900# Lakshadweep (Laccadive, Minicoy and Amindivi Is) 901# Nicobar Is 902 903# Indonesia 904# 905# From Paul Eggert (2014-09-06): 906# The 1876 Report of the Secretary of the [US] Navy, p 306 says that Batavia 907# civil time was 7:07:12.5; round to even for Jakarta. 908# 909# From Gwillim Law (2001-05-28), overriding Shanks & Pottenger: 910# http://www.sumatera-inc.com/go_to_invest/about_indonesia.asp#standtime 911# says that Indonesia's time zones changed on 1988-01-01. Looking at some 912# time zone maps, I think that must refer to Western Borneo (Kalimantan Barat 913# and Kalimantan Tengah) switching from UTC+8 to UTC+7. 914# 915# From Paul Eggert (2007-03-10): 916# Here is another correction to Shanks & Pottenger. 917# JohnTWB writes that Japanese forces did not surrender control in 918# Indonesia until 1945-09-01 00:00 at the earliest (in Jakarta) and 919# other formal surrender ceremonies were September 9, 11, and 13, plus 920# September 12 for the regional surrender to Mountbatten in Singapore. 921# These would be the earliest possible times for a change. 922# Régimes horaires pour le monde entier, by Henri Le Corre, (Éditions 923# Traditionnelles, 1987, Paris) says that Java and Madura switched 924# from JST to UTC+07:30 on 1945-09-23, and gives 1944-09-01 for Jayapura 925# (Hollandia). For now, assume all Indonesian locations other than Jayapura 926# switched on 1945-09-23. 927# 928# From Paul Eggert (2013-08-11): 929# Normally the tz database uses English-language abbreviations, but in 930# Indonesia it's typical to use Indonesian-language abbreviations even 931# when writing in English. For example, see the English-language 932# summary published by the Time and Frequency Laboratory of the 933# Research Center for Calibration, Instrumentation and Metrology, 934# Indonesia, <http://time.kim.lipi.go.id/time-eng.php> (2006-09-29). 935# The abbreviations are: 936# 937# WIB - UTC+7 - Waktu Indonesia Barat (Indonesia western time) 938# WITA - UTC+8 - Waktu Indonesia Tengah (Indonesia central time) 939# WIT - UTC+9 - Waktu Indonesia Timur (Indonesia eastern time) 940# 941# Zone NAME GMTOFF RULES FORMAT [UNTIL] 942# Java, Sumatra 943Zone Asia/Jakarta 7:07:12 - LMT 1867 Aug 10 944# Shanks & Pottenger say the next transition was at 1924 Jan 1 0:13, 945# but this must be a typo. 946 7:07:12 - BMT 1923 Dec 31 23:47:12 # Batavia 947 7:20 - JAVT 1932 Nov # Java Time 948 7:30 - WIB 1942 Mar 23 949 9:00 - JST 1945 Sep 23 950 7:30 - WIB 1948 May 951 8:00 - WIB 1950 May 952 7:30 - WIB 1964 953 7:00 - WIB 954# west and central Borneo 955Zone Asia/Pontianak 7:17:20 - LMT 1908 May 956 7:17:20 - PMT 1932 Nov # Pontianak MT 957 7:30 - WIB 1942 Jan 29 958 9:00 - JST 1945 Sep 23 959 7:30 - WIB 1948 May 960 8:00 - WIB 1950 May 961 7:30 - WIB 1964 962 8:00 - WITA 1988 Jan 1 963 7:00 - WIB 964# Sulawesi, Lesser Sundas, east and south Borneo 965Zone Asia/Makassar 7:57:36 - LMT 1920 966 7:57:36 - MMT 1932 Nov # Macassar MT 967 8:00 - WITA 1942 Feb 9 968 9:00 - JST 1945 Sep 23 969 8:00 - WITA 970# Maluku Islands, West Papua, Papua 971Zone Asia/Jayapura 9:22:48 - LMT 1932 Nov 972 9:00 - WIT 1944 Sep 1 973 9:30 - ACST 1964 974 9:00 - WIT 975 976# Iran 977 978# From Roozbeh Pournader (2003-03-15): 979# This is an English translation of what I just found (originally in Persian). 980# The Gregorian dates in brackets are mine: 981# 982# Official Newspaper No. 13548-1370/6/25 [1991-09-16] 983# No. 16760/T233 H 1370/6/10 [1991-09-01] 984# 985# The Rule About Change of the Official Time of the Country 986# 987# The Board of Ministers, in the meeting dated 1370/5/23 [1991-08-14], 988# based on the suggestion number 2221/D dated 1370/4/22 [1991-07-13] 989# of the Country's Organization for Official and Employment Affairs, 990# and referring to the law for equating the working hours of workers 991# and officers in the whole country dated 1359/4/23 [1980-07-14], and 992# for synchronizing the official times of the country, agreed that: 993# 994# The official time of the country will should move forward one hour 995# at the 24[:00] hours of the first day of Farvardin and should return 996# to its previous state at the 24[:00] hours of the 30th day of 997# Shahrivar. 998# 999# First Deputy to the President - Hassan Habibi 1000# 1001# From personal experience, that agrees with what has been followed 1002# for at least the last 5 years. Before that, for a few years, the 1003# date used was the first Thursday night of Farvardin and the last 1004# Thursday night of Shahrivar, but I can't give exact dates.... 1005# I have also changed the abbreviations to what is considered correct 1006# here in Iran, IRST for regular time and IRDT for daylight saving time. 1007# 1008# From Roozbeh Pournader (2005-04-05): 1009# The text of the Iranian law, in effect since 1925, clearly mentions 1010# that the true solar year is the measure, and there is no arithmetic 1011# leap year calculation involved. There has never been any serious 1012# plan to change that law.... 1013# 1014# From Paul Eggert (2006-03-22): 1015# Go with Shanks & Pottenger before Sept. 1991, and with Pournader thereafter. 1016# I used Ed Reingold's cal-persia in GNU Emacs 21.2 to check Persian dates, 1017# stopping after 2037 when 32-bit time_t's overflow. 1018# That cal-persia used Birashk's approximation, which disagrees with the solar 1019# calendar predictions for the year 2025, so I corrected those dates by hand. 1020# 1021# From Oscar van Vlijmen (2005-03-30), writing about future 1022# discrepancies between cal-persia and the Iranian calendar: 1023# For 2091 solar-longitude-after yields 2091-03-20 08:40:07.7 UT for 1024# the vernal equinox and that gets so close to 12:00 some local 1025# Iranian time that the definition of the correct location needs to be 1026# known exactly, amongst other factors. 2157 is even closer: 1027# 2157-03-20 08:37:15.5 UT. But the Gregorian year 2025 should give 1028# no interpretation problem whatsoever. By the way, another instant 1029# in the near future where there will be a discrepancy between 1030# arithmetical and astronomical Iranian calendars will be in 2058: 1031# vernal equinox on 2058-03-20 09:03:05.9 UT. The Java version of 1032# Reingold's/Dershowitz' calculator gives correctly the Gregorian date 1033# 2058-03-21 for 1 Farvardin 1437 (astronomical). 1034# 1035# From Steffen Thorsen (2006-03-22): 1036# Several of my users have reported that Iran will not observe DST anymore: 1037# http://www.irna.ir/en/news/view/line-17/0603193812164948.htm 1038# 1039# From Reuters (2007-09-16), with a heads-up from Jesper Nørgaard Welen: 1040# ... the Guardian Council ... approved a law on Sunday to re-introduce 1041# daylight saving time ... 1042# http://uk.reuters.com/article/oilRpt/idUKBLA65048420070916 1043# 1044# From Roozbeh Pournader (2007-11-05): 1045# This is quoted from Official Gazette of the Islamic Republic of 1046# Iran, Volume 63, No. 18242, dated Tuesday 1386/6/24 1047# [2007-10-16]. I am doing the best translation I can:... 1048# The official time of the country will be moved forward for one hour 1049# on the 24 hours of the first day of the month of Farvardin and will 1050# be changed back to its previous state on the 24 hours of the 1051# thirtieth day of Shahrivar. 1052# 1053# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1054Rule Iran 1978 1980 - Mar 21 0:00 1:00 D 1055Rule Iran 1978 only - Oct 21 0:00 0 S 1056Rule Iran 1979 only - Sep 19 0:00 0 S 1057Rule Iran 1980 only - Sep 23 0:00 0 S 1058Rule Iran 1991 only - May 3 0:00 1:00 D 1059Rule Iran 1992 1995 - Mar 22 0:00 1:00 D 1060Rule Iran 1991 1995 - Sep 22 0:00 0 S 1061Rule Iran 1996 only - Mar 21 0:00 1:00 D 1062Rule Iran 1996 only - Sep 21 0:00 0 S 1063Rule Iran 1997 1999 - Mar 22 0:00 1:00 D 1064Rule Iran 1997 1999 - Sep 22 0:00 0 S 1065Rule Iran 2000 only - Mar 21 0:00 1:00 D 1066Rule Iran 2000 only - Sep 21 0:00 0 S 1067Rule Iran 2001 2003 - Mar 22 0:00 1:00 D 1068Rule Iran 2001 2003 - Sep 22 0:00 0 S 1069Rule Iran 2004 only - Mar 21 0:00 1:00 D 1070Rule Iran 2004 only - Sep 21 0:00 0 S 1071Rule Iran 2005 only - Mar 22 0:00 1:00 D 1072Rule Iran 2005 only - Sep 22 0:00 0 S 1073Rule Iran 2008 only - Mar 21 0:00 1:00 D 1074Rule Iran 2008 only - Sep 21 0:00 0 S 1075Rule Iran 2009 2011 - Mar 22 0:00 1:00 D 1076Rule Iran 2009 2011 - Sep 22 0:00 0 S 1077Rule Iran 2012 only - Mar 21 0:00 1:00 D 1078Rule Iran 2012 only - Sep 21 0:00 0 S 1079Rule Iran 2013 2015 - Mar 22 0:00 1:00 D 1080Rule Iran 2013 2015 - Sep 22 0:00 0 S 1081Rule Iran 2016 only - Mar 21 0:00 1:00 D 1082Rule Iran 2016 only - Sep 21 0:00 0 S 1083Rule Iran 2017 2019 - Mar 22 0:00 1:00 D 1084Rule Iran 2017 2019 - Sep 22 0:00 0 S 1085Rule Iran 2020 only - Mar 21 0:00 1:00 D 1086Rule Iran 2020 only - Sep 21 0:00 0 S 1087Rule Iran 2021 2023 - Mar 22 0:00 1:00 D 1088Rule Iran 2021 2023 - Sep 22 0:00 0 S 1089Rule Iran 2024 only - Mar 21 0:00 1:00 D 1090Rule Iran 2024 only - Sep 21 0:00 0 S 1091Rule Iran 2025 2027 - Mar 22 0:00 1:00 D 1092Rule Iran 2025 2027 - Sep 22 0:00 0 S 1093Rule Iran 2028 2029 - Mar 21 0:00 1:00 D 1094Rule Iran 2028 2029 - Sep 21 0:00 0 S 1095Rule Iran 2030 2031 - Mar 22 0:00 1:00 D 1096Rule Iran 2030 2031 - Sep 22 0:00 0 S 1097Rule Iran 2032 2033 - Mar 21 0:00 1:00 D 1098Rule Iran 2032 2033 - Sep 21 0:00 0 S 1099Rule Iran 2034 2035 - Mar 22 0:00 1:00 D 1100Rule Iran 2034 2035 - Sep 22 0:00 0 S 1101# 1102# The following rules are approximations starting in the year 2038. 1103# These are the best post-2037 approximations available, given the 1104# restrictions of a single rule using a Gregorian-based data format. 1105# At some point this table will need to be extended, though quite 1106# possibly Iran will change the rules first. 1107Rule Iran 2036 max - Mar 21 0:00 1:00 D 1108Rule Iran 2036 max - Sep 21 0:00 0 S 1109 1110# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1111Zone Asia/Tehran 3:25:44 - LMT 1916 1112 3:25:44 - TMT 1946 # Tehran Mean Time 1113 3:30 - IRST 1977 Nov 1114 4:00 Iran IR%sT 1979 1115 3:30 Iran IR%sT 1116 1117 1118# Iraq 1119# 1120# From Jonathan Lennox (2000-06-12): 1121# An article in this week's Economist ("Inside the Saddam-free zone", p. 50 in 1122# the U.S. edition) on the Iraqi Kurds contains a paragraph: 1123# "The three northern provinces ... switched their clocks this spring and 1124# are an hour ahead of Baghdad." 1125# 1126# But Rives McDow (2000-06-18) quotes a contact in Iraqi-Kurdistan as follows: 1127# In the past, some Kurdish nationalists, as a protest to the Iraqi 1128# Government, did not adhere to daylight saving time. They referred 1129# to daylight saving as Saddam time. But, as of today, the time zone 1130# in Iraqi-Kurdistan is on standard time with Baghdad, Iraq. 1131# 1132# So we'll ignore the Economist's claim. 1133 1134# From Steffen Thorsen (2008-03-10): 1135# The cabinet in Iraq abolished DST last week, according to the following 1136# news sources (in Arabic): 1137# http://www.aljeeran.net/wesima_articles/news-20080305-98602.html 1138# http://www.aswataliraq.info/look/article.tpl?id=2047&IdLanguage=17&IdPublication=4&NrArticle=71743&NrIssue=1&NrSection=10 1139# 1140# We have published a short article in English about the change: 1141# http://www.timeanddate.com/news/time/iraq-dumps-daylight-saving.html 1142 1143# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1144Rule Iraq 1982 only - May 1 0:00 1:00 D 1145Rule Iraq 1982 1984 - Oct 1 0:00 0 S 1146Rule Iraq 1983 only - Mar 31 0:00 1:00 D 1147Rule Iraq 1984 1985 - Apr 1 0:00 1:00 D 1148Rule Iraq 1985 1990 - Sep lastSun 1:00s 0 S 1149Rule Iraq 1986 1990 - Mar lastSun 1:00s 1:00 D 1150# IATA SSIM (1991/1996) says Apr 1 12:01am UTC; guess the ':01' is a typo. 1151# Shanks & Pottenger say Iraq did not observe DST 1992/1997; ignore this. 1152# 1153Rule Iraq 1991 2007 - Apr 1 3:00s 1:00 D 1154Rule Iraq 1991 2007 - Oct 1 3:00s 0 S 1155# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1156Zone Asia/Baghdad 2:57:40 - LMT 1890 1157 2:57:36 - BMT 1918 # Baghdad Mean Time? 1158 3:00 - AST 1982 May 1159 3:00 Iraq A%sT 1160 1161 1162############################################################################### 1163 1164# Israel 1165 1166# From Ephraim Silverberg (2001-01-11): 1167# 1168# I coined "IST/IDT" circa 1988. Until then there were three 1169# different abbreviations in use: 1170# 1171# JST Jerusalem Standard Time [Danny Braniss, Hebrew University] 1172# IZT Israel Zonal (sic) Time [Prof. Haim Papo, Technion] 1173# EEST Eastern Europe Standard Time [used by almost everyone else] 1174# 1175# Since timezones should be called by country and not capital cities, 1176# I ruled out JST. As Israel is in Asia Minor and not Eastern Europe, 1177# EEST was equally unacceptable. Since "zonal" was not compatible with 1178# any other timezone abbreviation, I felt that 'IST' was the way to go 1179# and, indeed, it has received almost universal acceptance in timezone 1180# settings in Israeli computers. 1181# 1182# In any case, I am happy to share timezone abbreviations with India, 1183# high on my favorite-country list (and not only because my wife's 1184# family is from India). 1185 1186# From Shanks & Pottenger: 1187# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1188Rule Zion 1940 only - Jun 1 0:00 1:00 D 1189Rule Zion 1942 1944 - Nov 1 0:00 0 S 1190Rule Zion 1943 only - Apr 1 2:00 1:00 D 1191Rule Zion 1944 only - Apr 1 0:00 1:00 D 1192Rule Zion 1945 only - Apr 16 0:00 1:00 D 1193Rule Zion 1945 only - Nov 1 2:00 0 S 1194Rule Zion 1946 only - Apr 16 2:00 1:00 D 1195Rule Zion 1946 only - Nov 1 0:00 0 S 1196Rule Zion 1948 only - May 23 0:00 2:00 DD 1197Rule Zion 1948 only - Sep 1 0:00 1:00 D 1198Rule Zion 1948 1949 - Nov 1 2:00 0 S 1199Rule Zion 1949 only - May 1 0:00 1:00 D 1200Rule Zion 1950 only - Apr 16 0:00 1:00 D 1201Rule Zion 1950 only - Sep 15 3:00 0 S 1202Rule Zion 1951 only - Apr 1 0:00 1:00 D 1203Rule Zion 1951 only - Nov 11 3:00 0 S 1204Rule Zion 1952 only - Apr 20 2:00 1:00 D 1205Rule Zion 1952 only - Oct 19 3:00 0 S 1206Rule Zion 1953 only - Apr 12 2:00 1:00 D 1207Rule Zion 1953 only - Sep 13 3:00 0 S 1208Rule Zion 1954 only - Jun 13 0:00 1:00 D 1209Rule Zion 1954 only - Sep 12 0:00 0 S 1210Rule Zion 1955 only - Jun 11 2:00 1:00 D 1211Rule Zion 1955 only - Sep 11 0:00 0 S 1212Rule Zion 1956 only - Jun 3 0:00 1:00 D 1213Rule Zion 1956 only - Sep 30 3:00 0 S 1214Rule Zion 1957 only - Apr 29 2:00 1:00 D 1215Rule Zion 1957 only - Sep 22 0:00 0 S 1216Rule Zion 1974 only - Jul 7 0:00 1:00 D 1217Rule Zion 1974 only - Oct 13 0:00 0 S 1218Rule Zion 1975 only - Apr 20 0:00 1:00 D 1219Rule Zion 1975 only - Aug 31 0:00 0 S 1220Rule Zion 1985 only - Apr 14 0:00 1:00 D 1221Rule Zion 1985 only - Sep 15 0:00 0 S 1222Rule Zion 1986 only - May 18 0:00 1:00 D 1223Rule Zion 1986 only - Sep 7 0:00 0 S 1224Rule Zion 1987 only - Apr 15 0:00 1:00 D 1225Rule Zion 1987 only - Sep 13 0:00 0 S 1226 1227# From Avigdor Finkelstein (2014-03-05): 1228# I check the Parliament (Knesset) records and there it's stated that the 1229# [1988] transition should take place on Saturday night, when the Sabbath 1230# ends and changes to Sunday. 1231Rule Zion 1988 only - Apr 10 0:00 1:00 D 1232Rule Zion 1988 only - Sep 4 0:00 0 S 1233 1234# From Ephraim Silverberg 1235# (1997-03-04, 1998-03-16, 1998-12-28, 2000-01-17, 2000-07-25, 2004-12-22, 1236# and 2005-02-17): 1237 1238# According to the Office of the Secretary General of the Ministry of 1239# Interior, there is NO set rule for Daylight-Savings/Standard time changes. 1240# One thing is entrenched in law, however: that there must be at least 150 1241# days of daylight savings time annually. From 1993-1998, the change to 1242# daylight savings time was on a Friday morning from midnight IST to 1243# 1 a.m IDT; up until 1998, the change back to standard time was on a 1244# Saturday night from midnight daylight savings time to 11 p.m. standard 1245# time. 1996 is an exception to this rule where the change back to standard 1246# time took place on Sunday night instead of Saturday night to avoid 1247# conflicts with the Jewish New Year. In 1999, the change to 1248# daylight savings time was still on a Friday morning but from 1249# 2 a.m. IST to 3 a.m. IDT; furthermore, the change back to standard time 1250# was also on a Friday morning from 2 a.m. IDT to 1 a.m. IST for 1251# 1999 only. In the year 2000, the change to daylight savings time was 1252# similar to 1999, but although the change back will be on a Friday, it 1253# will take place from 1 a.m. IDT to midnight IST. Starting in 2001, all 1254# changes to/from will take place at 1 a.m. old time, but now there is no 1255# rule as to what day of the week it will take place in as the start date 1256# (except in 2003) is the night after the Passover Seder (i.e. the eve 1257# of the 16th of Nisan in the lunar Hebrew calendar) and the end date 1258# (except in 2002) is three nights before Yom Kippur [Day of Atonement] 1259# (the eve of the 7th of Tishrei in the lunar Hebrew calendar). 1260 1261# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1262Rule Zion 1989 only - Apr 30 0:00 1:00 D 1263Rule Zion 1989 only - Sep 3 0:00 0 S 1264Rule Zion 1990 only - Mar 25 0:00 1:00 D 1265Rule Zion 1990 only - Aug 26 0:00 0 S 1266Rule Zion 1991 only - Mar 24 0:00 1:00 D 1267Rule Zion 1991 only - Sep 1 0:00 0 S 1268Rule Zion 1992 only - Mar 29 0:00 1:00 D 1269Rule Zion 1992 only - Sep 6 0:00 0 S 1270Rule Zion 1993 only - Apr 2 0:00 1:00 D 1271Rule Zion 1993 only - Sep 5 0:00 0 S 1272 1273# The dates for 1994-1995 were obtained from Office of the Spokeswoman for the 1274# Ministry of Interior, Jerusalem, Israel. The spokeswoman can be reached by 1275# calling the office directly at 972-2-6701447 or 972-2-6701448. 1276 1277# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1278Rule Zion 1994 only - Apr 1 0:00 1:00 D 1279Rule Zion 1994 only - Aug 28 0:00 0 S 1280Rule Zion 1995 only - Mar 31 0:00 1:00 D 1281Rule Zion 1995 only - Sep 3 0:00 0 S 1282 1283# The dates for 1996 were determined by the Minister of Interior of the 1284# time, Haim Ramon. The official announcement regarding 1996-1998 1285# (with the dates for 1997-1998 no longer being relevant) can be viewed at: 1286# 1287# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/1996-1998.ramon.ps.gz 1288# 1289# The dates for 1997-1998 were altered by his successor, Rabbi Eli Suissa. 1290# 1291# The official announcements for the years 1997-1999 can be viewed at: 1292# 1293# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/YYYY.ps.gz 1294# 1295# where YYYY is the relevant year. 1296 1297# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1298Rule Zion 1996 only - Mar 15 0:00 1:00 D 1299Rule Zion 1996 only - Sep 16 0:00 0 S 1300Rule Zion 1997 only - Mar 21 0:00 1:00 D 1301Rule Zion 1997 only - Sep 14 0:00 0 S 1302Rule Zion 1998 only - Mar 20 0:00 1:00 D 1303Rule Zion 1998 only - Sep 6 0:00 0 S 1304Rule Zion 1999 only - Apr 2 2:00 1:00 D 1305Rule Zion 1999 only - Sep 3 2:00 0 S 1306 1307# The Knesset Interior Committee has changed the dates for 2000 for 1308# the third time in just over a year and have set new dates for the 1309# years 2001-2004 as well. 1310# 1311# The official announcement for the start date of 2000 can be viewed at: 1312# 1313# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2000-start.ps.gz 1314# 1315# The official announcement for the end date of 2000 and the dates 1316# for the years 2001-2004 can be viewed at: 1317# 1318# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2000-2004.ps.gz 1319 1320# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1321Rule Zion 2000 only - Apr 14 2:00 1:00 D 1322Rule Zion 2000 only - Oct 6 1:00 0 S 1323Rule Zion 2001 only - Apr 9 1:00 1:00 D 1324Rule Zion 2001 only - Sep 24 1:00 0 S 1325Rule Zion 2002 only - Mar 29 1:00 1:00 D 1326Rule Zion 2002 only - Oct 7 1:00 0 S 1327Rule Zion 2003 only - Mar 28 1:00 1:00 D 1328Rule Zion 2003 only - Oct 3 1:00 0 S 1329Rule Zion 2004 only - Apr 7 1:00 1:00 D 1330Rule Zion 2004 only - Sep 22 1:00 0 S 1331 1332# The proposed law agreed upon by the Knesset Interior Committee on 1333# 2005-02-14 is that, for 2005 and beyond, DST starts at 02:00 the 1334# last Friday before April 2nd (i.e. the last Friday in March or April 1335# 1st itself if it falls on a Friday) and ends at 02:00 on the Saturday 1336# night _before_ the fast of Yom Kippur. 1337# 1338# Those who can read Hebrew can view the announcement at: 1339# 1340# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2005+beyond.ps 1341 1342# From Paul Eggert (2012-10-26): 1343# I used Ephraim Silverberg's dst-israel.el program 1344# <ftp://ftp.cs.huji.ac.il/pub/tz/software/dst-israel.el> (2005-02-20) 1345# along with Ed Reingold's cal-hebrew in GNU Emacs 21.4, 1346# to generate the transitions from 2005 through 2012. 1347# (I replaced "lastFri" with "Fri>=26" by hand.) 1348# The spring transitions all correspond to the following Rule: 1349# 1350# Rule Zion 2005 2012 - Mar Fri>=26 2:00 1:00 D 1351# 1352# but older zic implementations (e.g., Solaris 8) do not support 1353# "Fri>=26" to mean April 1 in years like 2005, so for now we list the 1354# springtime transitions explicitly. 1355 1356# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1357Rule Zion 2005 only - Apr 1 2:00 1:00 D 1358Rule Zion 2005 only - Oct 9 2:00 0 S 1359Rule Zion 2006 2010 - Mar Fri>=26 2:00 1:00 D 1360Rule Zion 2006 only - Oct 1 2:00 0 S 1361Rule Zion 2007 only - Sep 16 2:00 0 S 1362Rule Zion 2008 only - Oct 5 2:00 0 S 1363Rule Zion 2009 only - Sep 27 2:00 0 S 1364Rule Zion 2010 only - Sep 12 2:00 0 S 1365Rule Zion 2011 only - Apr 1 2:00 1:00 D 1366Rule Zion 2011 only - Oct 2 2:00 0 S 1367Rule Zion 2012 only - Mar Fri>=26 2:00 1:00 D 1368Rule Zion 2012 only - Sep 23 2:00 0 S 1369 1370# From Ephraim Silverberg (2013-06-27): 1371# On June 23, 2013, the Israeli government approved changes to the 1372# Time Decree Law. The next day, the changes passed the First Reading 1373# in the Knesset. The law is expected to pass the Second and Third 1374# (final) Readings by the beginning of September 2013. 1375# 1376# As of 2013, DST starts at 02:00 on the Friday before the last Sunday 1377# in March. DST ends at 02:00 on the last Sunday of October. 1378 1379# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1380Rule Zion 2013 max - Mar Fri>=23 2:00 1:00 D 1381Rule Zion 2013 max - Oct lastSun 2:00 0 S 1382 1383# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1384Zone Asia/Jerusalem 2:20:54 - LMT 1880 1385 2:20:40 - JMT 1918 # Jerusalem Mean Time? 1386 2:00 Zion I%sT 1387 1388 1389 1390############################################################################### 1391 1392# Japan 1393 1394# '9:00' and 'JST' is from Guy Harris. 1395 1396# From Paul Eggert (1995-03-06): 1397# Today's _Asahi Evening News_ (page 4) reports that Japan had 1398# daylight saving between 1948 and 1951, but "the system was discontinued 1399# because the public believed it would lead to longer working hours." 1400 1401# From Mayumi Negishi in the 2005-08-10 Japan Times: 1402# http://www.japantimes.co.jp/cgi-bin/getarticle.pl5?nn20050810f2.htm 1403# Occupation authorities imposed daylight-saving time on Japan on 1404# [1948-05-01].... But lack of prior debate and the execution of 1405# daylight-saving time just three days after the bill was passed generated 1406# deep hatred of the concept.... The Diet unceremoniously passed a bill to 1407# dump the unpopular system in October 1951, less than a month after the San 1408# Francisco Peace Treaty was signed. (A government poll in 1951 showed 53% 1409# of the Japanese wanted to scrap daylight-saving time, as opposed to 30% who 1410# wanted to keep it.) 1411 1412# From Paul Eggert (2006-03-22): 1413# Shanks & Pottenger write that DST in Japan during those years was as follows: 1414# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1415Rule Japan 1948 only - May Sun>=1 2:00 1:00 D 1416Rule Japan 1948 1951 - Sep Sat>=8 2:00 0 S 1417Rule Japan 1949 only - Apr Sun>=1 2:00 1:00 D 1418Rule Japan 1950 1951 - May Sun>=1 2:00 1:00 D 1419# but the only locations using it (for birth certificates, presumably, since 1420# their audience is astrologers) were US military bases. For now, assume 1421# that for most purposes daylight-saving time was observed; otherwise, what 1422# would have been the point of the 1951 poll? 1423 1424# From Hideyuki Suzuki (1998-11-09): 1425# 'Tokyo' usually stands for the former location of Tokyo Astronomical 1426# Observatory: 139 degrees 44' 40.90" E (9h 18m 58.727s), 1427# 35 degrees 39' 16.0" N. 1428# This data is from 'Rika Nenpyou (Chronological Scientific Tables) 1996' 1429# edited by National Astronomical Observatory of Japan.... 1430# JST (Japan Standard Time) has been used since 1888-01-01 00:00 (JST). 1431# The law is enacted on 1886-07-07. 1432 1433# From Hideyuki Suzuki (1998-11-16): 1434# The ordinance No. 51 (1886) established "standard time" in Japan, 1435# which stands for the time on 135 degrees E. 1436# In the ordinance No. 167 (1895), "standard time" was renamed to "central 1437# standard time". And the same ordinance also established "western standard 1438# time", which stands for the time on 120 degrees E.... But "western standard 1439# time" was abolished in the ordinance No. 529 (1937). In the ordinance No. 1440# 167, there is no mention regarding for what place western standard time is 1441# standard.... 1442# 1443# I wrote "ordinance" above, but I don't know how to translate. 1444# In Japanese it's "chokurei", which means ordinance from emperor. 1445 1446# From Yu-Cheng Chuang (2013-07-12): 1447# ...the Meiji Emperor announced Ordinance No. 167 of Meiji Year 28 "The clause 1448# about standard time" ... The adoption began from Jan 1, 1896. 1449# http://ja.wikisource.org/wiki/標準時ニ關スル件_(公布時) 1450# 1451# ...the Showa Emperor announced Ordinance No. 529 of Showa Year 12 ... which 1452# means the whole Japan territory, including later occupations, adopt Japan 1453# Central Time (UTC+9). The adoption began on Oct 1, 1937. 1454# http://ja.wikisource.org/wiki/明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件 1455 1456# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1457Zone Asia/Tokyo 9:18:59 - LMT 1887 Dec 31 15:00u 1458 9:00 - JST 1896 Jan 1 1459 9:00 - JCST 1937 Oct 1 1460 9:00 Japan J%sT 1461# Since 1938, all Japanese possessions have been like Asia/Tokyo. 1462 1463# Jordan 1464# 1465# From <http://star.arabia.com/990701/JO9.html> 1466# Jordan Week (1999-07-01) via Steffen Thorsen (1999-09-09): 1467# Clocks in Jordan were forwarded one hour on Wednesday at midnight, 1468# in accordance with the government's decision to implement summer time 1469# all year round. 1470# 1471# From <http://star.arabia.com/990930/JO9.html> 1472# Jordan Week (1999-09-30) via Steffen Thorsen (1999-11-09): 1473# Winter time starts today Thursday, 30 September. Clocks will be turned back 1474# by one hour. This is the latest government decision and it's final! 1475# The decision was taken because of the increase in working hours in 1476# government's departments from six to seven hours. 1477# 1478# From Paul Eggert (2005-11-22): 1479# Starting 2003 transitions are from Steffen Thorsen's web site timeanddate.com. 1480# 1481# From Steffen Thorsen (2005-11-23): 1482# For Jordan I have received multiple independent user reports every year 1483# about DST end dates, as the end-rule is different every year. 1484# 1485# From Steffen Thorsen (2006-10-01), after a heads-up from Hilal Malawi: 1486# http://www.petranews.gov.jo/nepras/2006/Sep/05/4000.htm 1487# "Jordan will switch to winter time on Friday, October 27". 1488# 1489 1490# From Steffen Thorsen (2009-04-02): 1491# This single one might be good enough, (2009-03-24, Arabic): 1492# http://petra.gov.jo/Artical.aspx?Lng=2&Section=8&Artical=95279 1493# 1494# Google's translation: 1495# 1496# > The Council of Ministers decided in 2002 to adopt the principle of timely 1497# > submission of the summer at 60 minutes as of midnight on the last Thursday 1498# > of the month of March of each year. 1499# 1500# So - this means the midnight between Thursday and Friday since 2002. 1501 1502# From Arthur David Olson (2009-04-06): 1503# We still have Jordan switching to DST on Thursdays in 2000 and 2001. 1504 1505# From Steffen Thorsen (2012-10-25): 1506# Yesterday the government in Jordan announced that they will not 1507# switch back to standard time this winter, so the will stay on DST 1508# until about the same time next year (at least). 1509# http://www.petra.gov.jo/Public_News/Nws_NewsDetails.aspx?NewsID=88950 1510 1511# From Steffen Thorsen (2013-12-11): 1512# Jordan Times and other sources say that Jordan is going back to 1513# UTC+2 on 2013-12-19 at midnight: 1514# http://jordantimes.com/govt-decides-to-switch-back-to-wintertime 1515# Official, in Arabic: 1516# http://www.petra.gov.jo/public_news/Nws_NewsDetails.aspx?Menu_ID=&Site_Id=2&lang=1&NewsID=133230&CatID=14 1517# ... Our background/permalink about it 1518# http://www.timeanddate.com/news/time/jordan-reverses-dst-decision.html 1519# ... 1520# http://www.petra.gov.jo/Public_News/Nws_NewsDetails.aspx?lang=2&site_id=1&NewsID=133313&Type=P 1521# ... says midnight for the coming one and 1:00 for the ones in the future 1522# (and they will use DST again next year, using the normal schedule). 1523 1524# From Paul Eggert (2013-12-11): 1525# As Steffen suggested, consider the past 21-month experiment to be DST. 1526 1527# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1528Rule Jordan 1973 only - Jun 6 0:00 1:00 S 1529Rule Jordan 1973 1975 - Oct 1 0:00 0 - 1530Rule Jordan 1974 1977 - May 1 0:00 1:00 S 1531Rule Jordan 1976 only - Nov 1 0:00 0 - 1532Rule Jordan 1977 only - Oct 1 0:00 0 - 1533Rule Jordan 1978 only - Apr 30 0:00 1:00 S 1534Rule Jordan 1978 only - Sep 30 0:00 0 - 1535Rule Jordan 1985 only - Apr 1 0:00 1:00 S 1536Rule Jordan 1985 only - Oct 1 0:00 0 - 1537Rule Jordan 1986 1988 - Apr Fri>=1 0:00 1:00 S 1538Rule Jordan 1986 1990 - Oct Fri>=1 0:00 0 - 1539Rule Jordan 1989 only - May 8 0:00 1:00 S 1540Rule Jordan 1990 only - Apr 27 0:00 1:00 S 1541Rule Jordan 1991 only - Apr 17 0:00 1:00 S 1542Rule Jordan 1991 only - Sep 27 0:00 0 - 1543Rule Jordan 1992 only - Apr 10 0:00 1:00 S 1544Rule Jordan 1992 1993 - Oct Fri>=1 0:00 0 - 1545Rule Jordan 1993 1998 - Apr Fri>=1 0:00 1:00 S 1546Rule Jordan 1994 only - Sep Fri>=15 0:00 0 - 1547Rule Jordan 1995 1998 - Sep Fri>=15 0:00s 0 - 1548Rule Jordan 1999 only - Jul 1 0:00s 1:00 S 1549Rule Jordan 1999 2002 - Sep lastFri 0:00s 0 - 1550Rule Jordan 2000 2001 - Mar lastThu 0:00s 1:00 S 1551Rule Jordan 2002 2012 - Mar lastThu 24:00 1:00 S 1552Rule Jordan 2003 only - Oct 24 0:00s 0 - 1553Rule Jordan 2004 only - Oct 15 0:00s 0 - 1554Rule Jordan 2005 only - Sep lastFri 0:00s 0 - 1555Rule Jordan 2006 2011 - Oct lastFri 0:00s 0 - 1556Rule Jordan 2013 only - Dec 20 0:00 0 - 1557Rule Jordan 2014 max - Mar lastThu 24:00 1:00 S 1558Rule Jordan 2014 max - Oct lastFri 0:00s 0 - 1559# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1560Zone Asia/Amman 2:23:44 - LMT 1931 1561 2:00 Jordan EE%sT 1562 1563 1564# Kazakhstan 1565 1566# From Kazakhstan Embassy's News Bulletin No. 11 1567# <http://www.kazsociety.org.uk/news/2005/03/30.htm> (2005-03-21): 1568# The Government of Kazakhstan passed a resolution March 15 abolishing 1569# daylight saving time citing lack of economic benefits and health 1570# complications coupled with a decrease in productivity. 1571# 1572# From Branislav Kojic (in Astana) via Gwillim Law (2005-06-28): 1573# ... what happened was that the former Kazakhstan Eastern time zone 1574# was "blended" with the Central zone. Therefore, Kazakhstan now has 1575# two time zones, and difference between them is one hour. The zone 1576# closer to UTC is the former Western zone (probably still called the 1577# same), encompassing four provinces in the west: Aqtobe, Atyrau, 1578# Mangghystau, and West Kazakhstan. The other zone encompasses 1579# everything else.... I guess that would make Kazakhstan time zones 1580# de jure UTC+5 and UTC+6 respectively. 1581 1582# From Stepan Golosunov (2016-03-27) ([*] means see later comments below): 1583# Review of the linked documents from http://adilet.zan.kz/ 1584# produced the following data for post-1991 Kazakhstan: 1585# 1586# 0. Act of the Cabinet of Ministers of the USSR 1587# from 1991-02-04 No. 20 1588# http://pravo.gov.ru/proxy/ips/?docbody=&nd=102010545 1589# removed the extra hour ("decree time") on the territory of the USSR 1590# starting with the last Sunday of March 1991. 1591# It also allowed (but not mandated) Kazakh SSR, Kirghiz SSR, Tajik SSR, 1592# Turkmen SSR and Uzbek SSR to not have "summer" time. 1593# 1594# The 1992-01-13 act also refers to the act of the Cabinet of Ministers 1595# of the Kazakh SSR from 1991-03-20 No. 170 "About the act of the Cabinet 1596# of Ministers of the USSR from 1991-02-04 No. 20" but I didn't found its 1597# text. 1598# 1599# According to Izvestia newspaper No. 68 (23334) from 1991-03-20 1600# (page 6; available at http://libinfo.org/newsr/newsr2574.djvu via 1601# http://libinfo.org/index.php?id=58564) on 1991-03-31 at 2:00 during 1602# transition to "summer" time: 1603# Republic of Georgia, Latvian SSR, Lithuanian SSR, SSR Moldova, 1604# Estonian SSR; Komi ASSR; Kaliningrad oblast; Nenets autonomous okrug 1605# were to move clocks 1 hour forward. 1606# Kazakh SSR (excluding Uralsk oblast); Republic of Kyrgyzstan, Tajik 1607# SSR; Andijan, Jizzakh, Namangan, Sirdarya, Tashkent, Fergana oblasts 1608# of the Uzbek SSR were to move clocks 1 hour backwards. 1609# Other territories were to not move clocks. 1610# When the "summer" time would end on 1991-09-29, clocks were to be 1611# moved 1 hour backwards on the territory of the USSR excluding 1612# Kazakhstan, Kirghizia, Uzbekistan, Turkmenia, Tajikistan. 1613# 1614# Apparently there were last minute changes. Apparently Kazakh act No. 170 1615# was one of such changes. 1616# 1617# https://ru.wikipedia.org/wiki/Декретное время 1618# claims that Sovetskaya Rossiya newspaper on 1991-03-29 published that 1619# Nenets autonomous okrug, Komi and Kazakhstan (excluding Uralsk oblast) 1620# were to not move clocks and Uralsk oblast was to move clocks 1621# forward; on 1991-09-29 Kazakhstan was to move clocks backwards. 1622# (Probably there were changes even after that publication. There is an 1623# article claiming that Kaliningrad oblast decided on 1991-03-29 to not 1624# move clocks.) 1625# 1626# This implies that on 1991-03-31 Asia/Oral remained on +04/+05 while 1627# the rest of Kazakhstan switched from +06/+07 to +05/06 or from +05/06 1628# to +04/+05. It's unclear how Kzyl-Orda oblast moved into the fifth 1629# time belt. (By switching from +04/+05 to +05/+06 on 1991-09-29?) ... 1630# 1631# 1. Act of the Cabinet of Ministers of the Republic of Kazakhstan 1632# from 1992-01-13 No. 28 1633# http://adilet.zan.kz/rus/docs/P920000028_ 1634# (text includes modification from the 1996 act) 1635# introduced new rules for calculation of time, mirroring Russian 1636# 1992-01-08 act. It specified that time would be calculated 1637# according to time belts plus extra hour ("decree time"), moved clocks 1638# on the whole territory of Kazakhstan 1 hour forward on 1992-01-19 at 1639# 2:00, specified DST rules. It acknowledged that Kazakhstan was 1640# located in the fourth and the fifth time belts and specified the 1641# border between them to be located east of Kustanay and Aktyubinsk 1642# oblasts (notably including Turgai and Kzyl-Orda oblasts into the fifth 1643# time belt). 1644# 1645# This means switch on 1992-01-19 at 2:00 from +04/+05 to +05/+06 for 1646# Asia/Aqtau, Asia/Aqtobe, Asia/Oral, Atyrau and Kustanay oblasts; from 1647# +05/+06 to +06/+07 for Asia/Almaty and Asia/Qyzylorda (and Arkalyk) [*].... 1648# 1649# 2. Act of the Cabinet of Ministers of the Republic of Kazakhstan 1650# from 1992-03-27 No. 284 1651# http://adilet.zan.kz/rus/docs/P920000284_ 1652# cancels extra hour ("decree time") for Uralsk and Kzyl-Orda oblasts 1653# since the last Sunday of March 1992, while keeping them in the fourth 1654# and the fifth time belts respectively. 1655# 1656# 3. Order of the Prime Minister of the Republic of Kazakhstan 1657# from 1994-09-23 No. 384 1658# http://adilet.zan.kz/rus/docs/R940000384_ 1659# cancels the extra hour ("decree time") on the territory of Mangystau 1660# oblast since the last Sunday of September 1994 (saying that time on 1661# the territory would correspond to the third time belt as a 1662# result).... 1663# 1664# 4. Act of the Government of the Republic of Kazakhstan 1665# from 1996-05-08 No. 575 1666# http://adilet.zan.kz/rus/docs/P960000575_ 1667# amends the 1992-01-13 act to end summer time in October instead 1668# of September, mirroring identical Russian change from 1996-04-23 act. 1669# 1670# 5. Act of the Government of the Republic of Kazakhstan 1671# from 1999-03-26 No. 305 1672# http://adilet.zan.kz/rus/docs/P990000305_ 1673# cancels the extra hour ("decree time") for Atyrau oblast since the 1674# last Sunday of March 1999 while retaining the oblast in the fourth 1675# time belt. 1676# 1677# This means change from +05/+06 to +04/+05. 1678# 1679# There is no zone for Atyrau currently (listed under Asia/Aqtau in 1680# zone1970.tab).[*] 1681# 1682# 6. Act of the Government of the Republic of Kazakhstan 1683# from 2000-11-23 No. 1749 1684# http://adilet.zan.kz/rus/archive/docs/P000001749_/23.11.2000 1685# replaces the previous five documents. 1686# 1687# The only changes I noticed are in definition of the border between the 1688# fourth and the fifth time belts. They account for changes in spelling 1689# and administrative division (splitting of Turgai oblast in 1997 1690# probably changed time in territories incorporated into Kostanay oblast 1691# (including Arkalyk) from +06/+07 to +05/+06) and move Kyzylorda oblast 1692# from being in the fifth time belt and not using decree time into the 1693# fourth time belt (no change in practice).[*] 1694# 1695# 7. Act of the Government of the Republic of Kazakhstan 1696# from 2003-12-29 No. 1342 1697# http://adilet.zan.kz/rus/docs/P030001342_ 1698# modified the 2000-11-23 act. No relevant changes, apparently. 1699# 1700# 8. Act of the Government of the Republic of Kazakhstan 1701# from 2004-07-20 No. 775 1702# http://adilet.zan.kz/rus/archive/docs/P040000775_/20.07.2004 1703# modified the 2000-11-23 act to move Kostanay and Kyzylorda oblasts into 1704# the fifth time belt and add Aktobe oblast to the list of regions not 1705# using extra hour ("decree time"), leaving Kazakhstan with only 2 time 1706# zones (+04/+05 and +06/+07). The changes were to be implemented 1707# during DST transitions in 2004 and 2005 but the acts got radically 1708# amended before implementation happened. 1709# 1710# 9. Act of the Government of the Republic of Kazakhstan 1711# from 2004-09-15 No. 1059 1712# http://adilet.zan.kz/rus/docs/P040001059_ 1713# modified the 2000-11-23 act to remove exceptions from the "decree time" 1714# (leaving Kazakhstan in +05/+06 and +06/+07 zones), amended the 1715# 2004-07-20 act to implement changes for Atyrau, West Kazakhstan, 1716# Kostanay, Kyzylorda and Mangystau oblasts by not moving clocks 1717# during the 2014 transition to "winter" time. 1718# 1719# This means transition from +04/+05 to +05/+06 for Atyrau oblast (no 1720# zone currently), Asia/Oral, Asia/Aqtau and transition from +05/+06 to 1721# +06/+07 for Kostanay oblast (Kostanay and Arkalyk, no zones currently) 1722# and Asia/Qyzylorda on 2004-10-31 at 3:00....[*] 1723# 1724# 10. Act of the Government of the Republic of Kazakhstan 1725# from 2005-03-15 No. 231 1726# http://adilet.zan.kz/rus/docs/P050000231_ 1727# removes DST provisions from the 2000-11-23 act, removes most of the 1728# (already implemented) provisions from the 2004-07-20 and 2004-09-15 1729# acts, comes into effect 10 days after official publication. 1730# The only practical effect seems to be the abolition of the summer 1731# time. 1732# 1733# Unamended version of the act of the Government of the Russian Federation 1734# No. 23 from 1992-01-08 [See 'europe' file for details]. 1735# Kazakh 1992-01-13 act appears to provide the same rules and 1992-03-27 1736# act was to be enacted on the last Sunday of March 1992. 1737 1738# From Paul Eggert (2016-04-15): 1739# The tables below should reflect Stepan Golosunov's remarks above, 1740# except for the items marked "[*]" which I haven't gotten to yet. 1741# It looks like we will need new zones Asia/Atyrau and Asia/Qostanay 1742# to handle changes from 1992 through 2004 that we did not previously 1743# know about. 1744 1745# 1746# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1747# 1748# Almaty (formerly Alma-Ata), representing most locations in Kazakhstan 1749# This includes KZ-AKM, KZ-ALA, KZ-ALM, KZ-AST, KZ-BAY, KZ-VOS, KZ-ZHA, 1750# KZ-KAR, KZ-SEV, KZ-PAV, and KZ-YUZ. 1751Zone Asia/Almaty 5:07:48 - LMT 1924 May 2 # or Alma-Ata 1752 5:00 - +05 1930 Jun 21 1753 6:00 RussiaAsia +06/+07 1991 Mar 31 2:00s 1754 5:00 RussiaAsia +05/+06 1992 Jan 19 2:00s 1755 6:00 RussiaAsia +06/+07 2004 Oct 31 2:00s 1756 6:00 - +06 1757# Qyzylorda (aka Kyzylorda, Kizilorda, Kzyl-Orda, etc.) (KZ-KZY) 1758Zone Asia/Qyzylorda 4:21:52 - LMT 1924 May 2 1759 4:00 - +04 1930 Jun 21 1760 5:00 - +05 1981 Apr 1 1761 5:00 1:00 +06 1981 Oct 1 1762 6:00 - +06 1982 Apr 1 1763 5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s 1764 4:00 RussiaAsia +04/+05 1991 Sep 29 2:00s 1765 5:00 RussiaAsia +05/+06 1992 Jan 19 2:00s 1766 6:00 RussiaAsia +06/+07 1992 Mar 29 2:00s 1767 5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s 1768 6:00 - +06 1769# Aqtobe (aka Aktobe, formerly Aktyubinsk) (KZ-AKT) 1770Zone Asia/Aqtobe 3:48:40 - LMT 1924 May 2 1771 4:00 - +04 1930 Jun 21 1772 5:00 - +05 1981 Apr 1 1773 5:00 1:00 +06 1981 Oct 1 1774 6:00 - +06 1982 Apr 1 1775 5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s 1776 4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s 1777 5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s 1778 5:00 - +05 1779# Qostanay (KZ-KUS) 1780 1781# Mangghystau (KZ-MAN) 1782# Aqtau was not founded until 1963, but it represents an inhabited region, 1783# so include time stamps before 1963. 1784Zone Asia/Aqtau 3:21:04 - LMT 1924 May 2 1785 4:00 - +04 1930 Jun 21 1786 5:00 - +05 1963 1787 5:00 - +05 1981 Oct 1 1788 6:00 - +06 1982 Apr 1 1789 5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s 1790 4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s 1791 5:00 RussiaAsia +05/+06 1994 Sep 25 2:00s 1792 4:00 RussiaAsia +04/+05 2004 Oct 31 2:00s 1793 5:00 - +05 1794 1795# West Kazakhstan (KZ-ZAP) 1796# From Paul Eggert (2016-03-18): 1797# The 1989 transition is from USSR act No. 227 (1989-03-14). 1798Zone Asia/Oral 3:25:24 - LMT 1924 May 2 # or Ural'sk 1799 4:00 - +04 1930 Jun 21 1800 5:00 - +05 1981 Apr 1 1801 5:00 1:00 +06 1981 Oct 1 1802 6:00 - +06 1982 Apr 1 1803 5:00 RussiaAsia +05/+06 1989 Mar 26 2:00s 1804 4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s 1805 5:00 RussiaAsia +05/+06 1992 Mar 29 2:00s 1806 4:00 RussiaAsia +04/+05 2004 Oct 31 2:00s 1807 5:00 - +05 1808 1809# Kyrgyzstan (Kirgizstan) 1810# Transitions through 1991 are from Shanks & Pottenger. 1811 1812# From Paul Eggert (2005-08-15): 1813# According to an article dated today in the Kyrgyzstan Development Gateway 1814# http://eng.gateway.kg/cgi-bin/page.pl?id=1&story_name=doc9979.shtml 1815# Kyrgyzstan is canceling the daylight saving time system. I take the article 1816# to mean that they will leave their clocks at 6 hours ahead of UTC. 1817# From Malik Abdugaliev (2005-09-21): 1818# Our government cancels daylight saving time 6th of August 2005. 1819# From 2005-08-12 our GMT-offset is +6, w/o any daylight saving. 1820 1821# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1822Rule Kyrgyz 1992 1996 - Apr Sun>=7 0:00s 1:00 S 1823Rule Kyrgyz 1992 1996 - Sep lastSun 0:00 0 - 1824Rule Kyrgyz 1997 2005 - Mar lastSun 2:30 1:00 S 1825Rule Kyrgyz 1997 2004 - Oct lastSun 2:30 0 - 1826# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1827Zone Asia/Bishkek 4:58:24 - LMT 1924 May 2 1828 5:00 - FRUT 1930 Jun 21 # Frunze Time 1829 6:00 RussiaAsia FRU%sT 1991 Mar 31 2:00s 1830 5:00 1:00 FRUST 1991 Aug 31 2:00 # independence 1831 5:00 Kyrgyz KG%sT 2005 Aug 12 # Kyrgyzstan Time 1832 6:00 - KGT 1833 1834############################################################################### 1835 1836# Korea (North and South) 1837 1838# From Annie I. Bang (2006-07-10): 1839# http://www.koreaherald.com/view.php?ud=200607100012 1840# Korea ran a daylight saving program from 1949-61 but stopped it 1841# during the 1950-53 Korean War. The system was temporarily enforced 1842# between 1987 and 1988 ... 1843 1844# From Sanghyuk Jung (2014-10-29): 1845# http://mm.icann.org/pipermail/tz/2014-October/021830.html 1846# According to the Korean Wikipedia 1847# http://ko.wikipedia.org/wiki/한국_표준시 1848# [oldid=12896437 2014-09-04 08:03 UTC] 1849# DST in Republic of Korea was as follows.... And I checked old 1850# newspapers in Korean, all articles correspond with data in Wikipedia. 1851# For example, the article in 1948 (Korean Language) proved that DST 1852# started at June 1 in that year. For another example, the article in 1853# 1988 said that DST started at 2:00 AM in that year. 1854 1855# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1856Rule ROK 1948 only - Jun 1 0:00 1:00 D 1857Rule ROK 1948 only - Sep 13 0:00 0 S 1858Rule ROK 1949 only - Apr 3 0:00 1:00 D 1859Rule ROK 1949 1951 - Sep Sun>=8 0:00 0 S 1860Rule ROK 1950 only - Apr 1 0:00 1:00 D 1861Rule ROK 1951 only - May 6 0:00 1:00 D 1862Rule ROK 1955 only - May 5 0:00 1:00 D 1863Rule ROK 1955 only - Sep 9 0:00 0 S 1864Rule ROK 1956 only - May 20 0:00 1:00 D 1865Rule ROK 1956 only - Sep 30 0:00 0 S 1866Rule ROK 1957 1960 - May Sun>=1 0:00 1:00 D 1867Rule ROK 1957 1960 - Sep Sun>=18 0:00 0 S 1868Rule ROK 1987 1988 - May Sun>=8 2:00 1:00 D 1869Rule ROK 1987 1988 - Oct Sun>=8 3:00 0 S 1870 1871# From Paul Eggert (2014-10-30): 1872# The Korean Wikipedia entry gives the following sources for UT offsets: 1873# 1874# 1908: Official Journal Article No. 3994 (Edict No. 5) 1875# 1912: Governor-General of Korea Official Gazette Issue No. 367 1876# (Announcement No. 338) 1877# 1954: Presidential Decree No. 876 (1954-03-17) 1878# 1961: Law No. 676 (1961-08-07) 1879# 1987: Law No. 3919 (1986-12-31) 1880# 1881# The Wikipedia entry also has confusing information about a change 1882# to UT+9 in April 1910, but then what would be the point of the later change 1883# to UT+9 on 1912-01-01? Omit the 1910 change for now. 1884# 1885# I guessed that time zone abbreviations through 1945 followed the same 1886# rules as discussed under Taiwan, with nominal switches from JST to KST 1887# when the respective cities were taken over by the Allies after WWII. 1888# 1889# For Pyongyang we have no information; guess no changes since World War II. 1890 1891# From Steffen Thorsen (2015-08-07): 1892# According to many news sources, North Korea is going to change to 1893# the 8:30 time zone on August 15, one example: 1894# http://www.bbc.com/news/world-asia-33815049 1895# 1896# From Paul Eggert (2015-08-15): 1897# Bells rang out midnight (00:00) Friday as part of the celebrations. See: 1898# Talmadge E. North Korea celebrates new time zone, 'Pyongyang Time' 1899# http://news.yahoo.com/north-korea-celebrates-time-zone-pyongyang-time-164038128.html 1900# There is no common English-language abbreviation for this time zone. 1901# Use KST, as that's what we already use for 1954-1961 in ROK. 1902 1903# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1904Zone Asia/Seoul 8:27:52 - LMT 1908 Apr 1 1905 8:30 - KST 1912 Jan 1 1906 9:00 - JCST 1937 Oct 1 1907 9:00 - JST 1945 Sep 8 1908 9:00 - KST 1954 Mar 21 1909 8:30 ROK K%sT 1961 Aug 10 1910 9:00 ROK K%sT 1911Zone Asia/Pyongyang 8:23:00 - LMT 1908 Apr 1 1912 8:30 - KST 1912 Jan 1 1913 9:00 - JCST 1937 Oct 1 1914 9:00 - JST 1945 Aug 24 1915 9:00 - KST 2015 Aug 15 00:00 1916 8:30 - KST 1917 1918############################################################################### 1919 1920# Kuwait 1921# See Asia/Riyadh. 1922 1923# Laos 1924# See Asia/Bangkok. 1925 1926 1927# Lebanon 1928# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1929Rule Lebanon 1920 only - Mar 28 0:00 1:00 S 1930Rule Lebanon 1920 only - Oct 25 0:00 0 - 1931Rule Lebanon 1921 only - Apr 3 0:00 1:00 S 1932Rule Lebanon 1921 only - Oct 3 0:00 0 - 1933Rule Lebanon 1922 only - Mar 26 0:00 1:00 S 1934Rule Lebanon 1922 only - Oct 8 0:00 0 - 1935Rule Lebanon 1923 only - Apr 22 0:00 1:00 S 1936Rule Lebanon 1923 only - Sep 16 0:00 0 - 1937Rule Lebanon 1957 1961 - May 1 0:00 1:00 S 1938Rule Lebanon 1957 1961 - Oct 1 0:00 0 - 1939Rule Lebanon 1972 only - Jun 22 0:00 1:00 S 1940Rule Lebanon 1972 1977 - Oct 1 0:00 0 - 1941Rule Lebanon 1973 1977 - May 1 0:00 1:00 S 1942Rule Lebanon 1978 only - Apr 30 0:00 1:00 S 1943Rule Lebanon 1978 only - Sep 30 0:00 0 - 1944Rule Lebanon 1984 1987 - May 1 0:00 1:00 S 1945Rule Lebanon 1984 1991 - Oct 16 0:00 0 - 1946Rule Lebanon 1988 only - Jun 1 0:00 1:00 S 1947Rule Lebanon 1989 only - May 10 0:00 1:00 S 1948Rule Lebanon 1990 1992 - May 1 0:00 1:00 S 1949Rule Lebanon 1992 only - Oct 4 0:00 0 - 1950Rule Lebanon 1993 max - Mar lastSun 0:00 1:00 S 1951Rule Lebanon 1993 1998 - Sep lastSun 0:00 0 - 1952Rule Lebanon 1999 max - Oct lastSun 0:00 0 - 1953# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1954Zone Asia/Beirut 2:22:00 - LMT 1880 1955 2:00 Lebanon EE%sT 1956 1957# Malaysia 1958# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1959Rule NBorneo 1935 1941 - Sep 14 0:00 0:20 TS # one-Third Summer 1960Rule NBorneo 1935 1941 - Dec 14 0:00 0 - 1961# 1962# peninsular Malaysia 1963# taken from Mok Ly Yng (2003-10-30) 1964# http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html 1965# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1966Zone Asia/Kuala_Lumpur 6:46:46 - LMT 1901 Jan 1 1967 6:55:25 - SMT 1905 Jun 1 # Singapore M.T. 1968 7:00 - MALT 1933 Jan 1 # Malaya Time 1969 7:00 0:20 MALST 1936 Jan 1 1970 7:20 - MALT 1941 Sep 1 1971 7:30 - MALT 1942 Feb 16 1972 9:00 - JST 1945 Sep 12 1973 7:30 - MALT 1982 Jan 1 1974 8:00 - MYT # Malaysia Time 1975# Sabah & Sarawak 1976# From Paul Eggert (2014-08-12): 1977# The data entries here are mostly from Shanks & Pottenger, but the 1942, 1945 1978# and 1982 transition dates are from Mok Ly Yng. 1979# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1980Zone Asia/Kuching 7:21:20 - LMT 1926 Mar 1981 7:30 - BORT 1933 # Borneo Time 1982 8:00 NBorneo BOR%sT 1942 Feb 16 1983 9:00 - JST 1945 Sep 12 1984 8:00 - BORT 1982 Jan 1 1985 8:00 - MYT 1986 1987# Maldives 1988# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1989Zone Indian/Maldives 4:54:00 - LMT 1880 # Male 1990 4:54:00 - MMT 1960 # Male Mean Time 1991 5:00 - MVT # Maldives Time 1992 1993# Mongolia 1994 1995# Shanks & Pottenger say that Mongolia has three time zones, but 1996# The USNO (1995-12-21) and the CIA map Standard Time Zones of the World 1997# (2005-03) both say that it has just one. 1998 1999# From Oscar van Vlijmen (1999-12-11): 2000# General Information Mongolia 2001# <http://www.mongoliatourism.gov.mn/general.htm> (1999-09) 2002# "Time: Mongolia has two time zones. Three westernmost provinces of 2003# Bayan-Ölgii, Uvs, and Hovd are one hour earlier than the capital city, and 2004# the rest of the country follows the Ulaanbaatar time, which is UTC/GMT plus 2005# eight hours." 2006 2007# From Rives McDow (1999-12-13): 2008# Mongolia discontinued the use of daylight savings time in 1999; 1998 2009# being the last year it was implemented. The dates of implementation I am 2010# unsure of, but most probably it was similar to Russia, except for the time 2011# of implementation may have been different.... 2012# Some maps in the past have indicated that there was an additional time 2013# zone in the eastern part of Mongolia, including the provinces of Dornod, 2014# Sükhbaatar, and possibly Khentii. 2015 2016# From Paul Eggert (1999-12-15): 2017# Naming and spelling is tricky in Mongolia. 2018# We'll use Hovd (also spelled Chovd and Khovd) to represent the west zone; 2019# the capital of the Hovd province is sometimes called Hovd, sometimes Dund-Us, 2020# and sometimes Jirgalanta (with variant spellings), but the name Hovd 2021# is good enough for our purposes. 2022 2023# From Rives McDow (2001-05-13): 2024# In addition to Mongolia starting daylight savings as reported earlier 2025# (adopted DST on 2001-04-27 02:00 local time, ending 2001-09-28), 2026# there are three time zones. 2027# 2028# Provinces [at 7:00]: Bayan-Ölgii, Uvs, Khovd, Zavkhan, Govi-Altai 2029# Provinces [at 8:00]: Khövsgöl, Bulgan, Arkhangai, Khentii, Töv, 2030# Bayankhongor, Övörkhangai, Dundgovi, Dornogovi, Ömnögovi 2031# Provinces [at 9:00]: Dornod, Sükhbaatar 2032# 2033# [The province of Selenge is omitted from the above lists.] 2034 2035# From Ganbold Ts., Ulaanbaatar (2004-04-17): 2036# Daylight saving occurs at 02:00 local time last Saturday of March. 2037# It will change back to normal at 02:00 local time last Saturday of 2038# September.... As I remember this rule was changed in 2001. 2039# 2040# From Paul Eggert (2004-04-17): 2041# For now, assume Rives McDow's informant got confused about Friday vs 2042# Saturday, and that his 2001 dates should have 1 added to them. 2043 2044# From Paul Eggert (2005-07-26): 2045# We have wildly conflicting information about Mongolia's time zones. 2046# Bill Bonnet (2005-05-19) reports that the US Embassy in Ulaanbaatar says 2047# there is only one time zone and that DST is observed, citing Microsoft 2048# Windows XP as the source. Risto Nykänen (2005-05-16) reports that 2049# travelmongolia.org says there are two time zones (UTC+7, UTC+8) with no DST. 2050# Oscar van Vlijmen (2005-05-20) reports that the Mongolian Embassy in 2051# Washington, DC says there are two time zones, with DST observed. 2052# He also found 2053# http://ubpost.mongolnews.mn/index.php?subaction=showcomments&id=1111634894&archive=&start_from=&ucat=1& 2054# which also says that there is DST, and which has a comment by "Toddius" 2055# (2005-03-31 06:05 +0700) saying "Mongolia actually has 3.5 time zones. 2056# The West (OLGII) is +7 GMT, most of the country is ULAT is +8 GMT 2057# and some Eastern provinces are +9 GMT but Sükhbaatar Aimag is SUHK +8.5 GMT. 2058# The SUKH timezone is new this year, it is one of the few things the 2059# parliament passed during the tumultuous winter session." 2060# For now, let's ignore this information, until we have more confirmation. 2061 2062# From Ganbold Ts. (2007-02-26): 2063# Parliament of Mongolia has just changed the daylight-saving rule in February. 2064# They decided not to adopt daylight-saving time.... 2065# http://www.mongolnews.mn/index.php?module=unuudur&sec=view&id=15742 2066 2067# From Deborah Goldsmith (2008-03-30): 2068# We received a bug report claiming that the tz database UTC offset for 2069# Asia/Choibalsan (GMT+09:00) is incorrect, and that it should be GMT 2070# +08:00 instead. Different sources appear to disagree with the tz 2071# database on this, e.g.: 2072# 2073# http://www.timeanddate.com/worldclock/city.html?n=1026 2074# http://www.worldtimeserver.com/current_time_in_MN.aspx 2075# 2076# both say GMT+08:00. 2077 2078# From Steffen Thorsen (2008-03-31): 2079# eznis airways, which operates several domestic flights, has a flight 2080# schedule here: 2081# http://www.eznis.com/Container.jsp?id=112 2082# (click the English flag for English) 2083# 2084# There it appears that flights between Choibalsan and Ulaanbaatar arrive 2085# about 1:35 - 1:50 hours later in local clock time, no matter the 2086# direction, while Ulaanbaatar-Khovd takes 2 hours in the Eastern 2087# direction and 3:35 back, which indicates that Ulaanbaatar and Khovd are 2088# in different time zones (like we know about), while Choibalsan and 2089# Ulaanbaatar are in the same time zone (correction needed). 2090 2091# From Arthur David Olson (2008-05-19): 2092# Assume that Choibalsan is indeed offset by 8:00. 2093# XXX--in the absence of better information, assume that transition 2094# was at the start of 2008-03-31 (the day of Steffen Thorsen's report); 2095# this is almost surely wrong. 2096 2097# From Ganbold Tsagaankhuu (2015-03-10): 2098# It seems like yesterday Mongolian Government meeting has concluded to use 2099# daylight saving time in Mongolia.... Starting at 2:00AM of last Saturday of 2100# March 2015, daylight saving time starts. And 00:00AM of last Saturday of 2101# September daylight saving time ends. Source: 2102# http://zasag.mn/news/view/8969 2103 2104# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 2105Rule Mongol 1983 1984 - Apr 1 0:00 1:00 S 2106Rule Mongol 1983 only - Oct 1 0:00 0 - 2107# Shanks & Pottenger and IATA SSIM say 1990s switches occurred at 00:00, 2108# but McDow says the 2001 switches occurred at 02:00. Also, IATA SSIM 2109# (1996-09) says 1996-10-25. Go with Shanks & Pottenger through 1998. 2110# 2111# Shanks & Pottenger say that the Sept. 1984 through Sept. 1990 switches 2112# in Choibalsan (more precisely, in Dornod and Sükhbaatar) took place 2113# at 02:00 standard time, not at 00:00 local time as in the rest of 2114# the country. That would be odd, and possibly is a result of their 2115# correction of 02:00 (in the previous edition) not being done correctly 2116# in the latest edition; so ignore it for now. 2117 2118Rule Mongol 1985 1998 - Mar lastSun 0:00 1:00 S 2119Rule Mongol 1984 1998 - Sep lastSun 0:00 0 - 2120# IATA SSIM (1999-09) says Mongolia no longer observes DST. 2121Rule Mongol 2001 only - Apr lastSat 2:00 1:00 S 2122Rule Mongol 2001 2006 - Sep lastSat 2:00 0 - 2123Rule Mongol 2002 2006 - Mar lastSat 2:00 1:00 S 2124Rule Mongol 2015 max - Mar lastSat 2:00 1:00 S 2125Rule Mongol 2015 max - Sep lastSat 0:00 0 - 2126 2127# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2128# Hovd, a.k.a. Chovd, Dund-Us, Dzhargalant, Khovd, Jirgalanta 2129Zone Asia/Hovd 6:06:36 - LMT 1905 Aug 2130 6:00 - HOVT 1978 # Hovd Time 2131 7:00 Mongol HOV%sT 2132# Ulaanbaatar, a.k.a. Ulan Bataar, Ulan Bator, Urga 2133Zone Asia/Ulaanbaatar 7:07:32 - LMT 1905 Aug 2134 7:00 - ULAT 1978 # Ulaanbaatar Time 2135 8:00 Mongol ULA%sT 2136# Choibalsan, a.k.a. Bajan Tümen, Bajan Tumen, Chojbalsan, 2137# Choybalsan, Sanbejse, Tchoibalsan 2138Zone Asia/Choibalsan 7:38:00 - LMT 1905 Aug 2139 7:00 - ULAT 1978 2140 8:00 - ULAT 1983 Apr 2141 9:00 Mongol CHO%sT 2008 Mar 31 # Choibalsan Time 2142 8:00 Mongol CHO%sT 2143 2144# Nepal 2145# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2146Zone Asia/Kathmandu 5:41:16 - LMT 1920 2147 5:30 - IST 1986 2148 5:45 - NPT # Nepal Time 2149 2150# Oman 2151# See Asia/Dubai. 2152 2153# Pakistan 2154 2155# From Rives McDow (2002-03-13): 2156# I have been advised that Pakistan has decided to adopt dst on a 2157# TRIAL basis for one year, starting 00:01 local time on April 7, 2002 2158# and ending at 00:01 local time October 6, 2002. This is what I was 2159# told, but I believe that the actual time of change may be 00:00; the 2160# 00:01 was to make it clear which day it was on. 2161 2162# From Paul Eggert (2002-03-15): 2163# Jesper Nørgaard found this URL: 2164# http://www.pak.gov.pk/public/news/app/app06_dec.htm 2165# (dated 2001-12-06) which says that the Cabinet adopted a scheme "to 2166# advance the clocks by one hour on the night between the first 2167# Saturday and Sunday of April and revert to the original position on 2168# 15th October each year". This agrees with McDow's 04-07 at 00:00, 2169# but disagrees about the October transition, and makes it sound like 2170# it's not on a trial basis. Also, the "between the first Saturday 2171# and Sunday of April" phrase, if taken literally, means that the 2172# transition takes place at 00:00 on the first Sunday on or after 04-02. 2173 2174# From Paul Eggert (2003-02-09): 2175# DAWN <http://www.dawn.com/2002/10/06/top13.htm> reported on 2002-10-05 2176# that 2002 DST ended that day at midnight. Go with McDow for now. 2177 2178# From Steffen Thorsen (2003-03-14): 2179# According to http://www.dawn.com/2003/03/07/top15.htm 2180# there will be no DST in Pakistan this year: 2181# 2182# ISLAMABAD, March 6: Information and Media Development Minister Sheikh 2183# Rashid Ahmed on Thursday said the cabinet had reversed a previous 2184# decision to advance clocks by one hour in summer and put them back by 2185# one hour in winter with the aim of saving light hours and energy. 2186# 2187# The minister told a news conference that the experiment had rather 2188# shown 8 per cent higher consumption of electricity. 2189 2190# From Alex Krivenyshev (2008-05-15): 2191# 2192# Here is an article that Pakistan plan to introduce Daylight Saving Time 2193# on June 1, 2008 for 3 months. 2194# 2195# "... The federal cabinet on Wednesday announced a new conservation plan to 2196# help reduce load shedding by approving the closure of commercial centres at 2197# 9pm and moving clocks forward by one hour for the next three months. ...." 2198# 2199# http://www.worldtimezone.net/dst_news/dst_news_pakistan01.html 2200# http://www.dailytimes.com.pk/default.asp?page=2008%5C05%5C15%5Cstory_15-5-2008_pg1_4 2201 2202# From Arthur David Olson (2008-05-19): 2203# XXX--midnight transitions is a guess; 2008 only is a guess. 2204 2205# From Alexander Krivenyshev (2008-08-28): 2206# Pakistan government has decided to keep the watches one-hour advanced 2207# for another 2 months - plan to return to Standard Time on October 31 2208# instead of August 31. 2209# 2210# http://www.worldtimezone.com/dst_news/dst_news_pakistan02.html 2211# http://dailymailnews.com/200808/28/news/dmbrn03.html 2212 2213# From Alexander Krivenyshev (2009-04-08): 2214# Based on previous media reports that "... proposed plan to 2215# advance clocks by one hour from May 1 will cause disturbance 2216# to the working schedules rather than bringing discipline in 2217# official working." 2218# http://www.thenews.com.pk/daily_detail.asp?id=171280 2219# 2220# recent news that instead of May 2009 - Pakistan plan to 2221# introduce DST from April 15, 2009 2222# 2223# FYI: Associated Press Of Pakistan 2224# April 08, 2009 2225# Cabinet okays proposal to advance clocks by one hour from April 15 2226# http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=73043&Itemid=1 2227# http://www.worldtimezone.com/dst_news/dst_news_pakistan05.html 2228# 2229# .... 2230# The Federal Cabinet on Wednesday approved the proposal to 2231# advance clocks in the country by one hour from April 15 to 2232# conserve energy" 2233 2234# From Steffen Thorsen (2009-09-17): 2235# "The News International," Pakistan reports that: "The Federal 2236# Government has decided to restore the previous time by moving the 2237# clocks backward by one hour from October 1. A formal announcement to 2238# this effect will be made after the Prime Minister grants approval in 2239# this regard." 2240# http://www.thenews.com.pk/updates.asp?id=87168 2241 2242# From Alexander Krivenyshev (2009-09-28): 2243# According to Associated Press Of Pakistan, it is confirmed that 2244# Pakistan clocks across the country would be turned back by an hour from 2245# October 1, 2009. 2246# 2247# "Clocks to go back one hour from 1 Oct" 2248# http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=86715&Itemid=2 2249# http://www.worldtimezone.com/dst_news/dst_news_pakistan07.htm 2250# 2251# From Steffen Thorsen (2009-09-29): 2252# Now they seem to have changed their mind, November 1 is the new date: 2253# http://www.thenews.com.pk/top_story_detail.asp?Id=24742 2254# "The country's clocks will be reversed by one hour on November 1. 2255# Officials of Federal Ministry for Interior told this to Geo News on 2256# Monday." 2257# 2258# And more importantly, it seems that these dates will be kept every year: 2259# "It has now been decided that clocks will be wound forward by one hour 2260# on April 15 and reversed by an hour on November 1 every year without 2261# obtaining prior approval, the officials added." 2262# 2263# We have confirmed this year's end date with both with the Ministry of 2264# Water and Power and the Pakistan Electric Power Company: 2265# http://www.timeanddate.com/news/time/pakistan-ends-dst09.html 2266 2267# From Christoph Göhre (2009-10-01): 2268# [T]he German Consulate General in Karachi reported me today that Pakistan 2269# will go back to standard time on 1st of November. 2270 2271# From Steffen Thorsen (2010-03-26): 2272# Steffen Thorsen wrote: 2273# > On Thursday (2010-03-25) it was announced that DST would start in 2274# > Pakistan on 2010-04-01. 2275# > 2276# > Then today, the president said that they might have to revert the 2277# > decision if it is not supported by the parliament. So at the time 2278# > being, it seems unclear if DST will be actually observed or not - but 2279# > April 1 could be a more likely date than April 15. 2280# Now, it seems that the decision to not observe DST in final: 2281# 2282# "Govt Withdraws Plan To Advance Clocks" 2283# http://www.apakistannews.com/govt-withdraws-plan-to-advance-clocks-172041 2284# 2285# "People laud PM's announcement to end DST" 2286# http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=99374&Itemid=2 2287 2288# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 2289Rule Pakistan 2002 only - Apr Sun>=2 0:00 1:00 S 2290Rule Pakistan 2002 only - Oct Sun>=2 0:00 0 - 2291Rule Pakistan 2008 only - Jun 1 0:00 1:00 S 2292Rule Pakistan 2008 2009 - Nov 1 0:00 0 - 2293Rule Pakistan 2009 only - Apr 15 0:00 1:00 S 2294 2295# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2296Zone Asia/Karachi 4:28:12 - LMT 1907 2297 5:30 - IST 1942 Sep 2298 5:30 1:00 IST 1945 Oct 15 2299 5:30 - IST 1951 Sep 30 2300 5:00 - KART 1971 Mar 26 # Karachi Time 2301 5:00 Pakistan PK%sT # Pakistan Time 2302 2303# Palestine 2304 2305# From Amos Shapir (1998-02-15): 2306# 2307# From 1917 until 1948-05-15, all of Palestine, including the parts now 2308# known as the Gaza Strip and the West Bank, was under British rule. 2309# Therefore the rules given for Israel for that period, apply there too... 2310# 2311# The Gaza Strip was under Egyptian rule between 1948-05-15 until 1967-06-05 2312# (except a short occupation by Israel from 1956-11 till 1957-03, but no 2313# time zone was affected then). It was never formally annexed to Egypt, 2314# though. 2315# 2316# The rest of Palestine was under Jordanian rule at that time, formally 2317# annexed in 1950 as the West Bank (and the word "Trans" was dropped from 2318# the country's previous name of "the Hashemite Kingdom of the 2319# Trans-Jordan"). So the rules for Jordan for that time apply. Major 2320# towns in that area are Nablus (Shchem), El-Halil (Hebron), Ramallah, and 2321# East Jerusalem. 2322# 2323# Both areas were occupied by Israel in June 1967, but not annexed (except 2324# for East Jerusalem). They were on Israel time since then; there might 2325# have been a Military Governor's order about time zones, but I'm not aware 2326# of any (such orders may have been issued semi-annually whenever summer 2327# time was in effect, but maybe the legal aspect of time was just neglected). 2328# 2329# The Palestinian Authority was established in 1993, and got hold of most 2330# towns in the West Bank and Gaza by 1995. I know that in order to 2331# demonstrate...independence, they have been switching to 2332# summer time and back on a different schedule than Israel's, but I don't 2333# know when this was started, or what algorithm is used (most likely the 2334# Jordanian one). 2335# 2336# To summarize, the table should probably look something like that: 2337# 2338# Area \ when | 1918-1947 | 1948-1967 | 1967-1995 | 1996- 2339# ------------+-----------+-----------+-----------+----------- 2340# Israel | Zion | Zion | Zion | Zion 2341# West bank | Zion | Jordan | Zion | Jordan 2342# Gaza | Zion | Egypt | Zion | Jordan 2343# 2344# I guess more info may be available from the PA's web page (if/when they 2345# have one). 2346 2347# From Paul Eggert (2006-03-22): 2348# Shanks & Pottenger write that Gaza did not observe DST until 1957, but go 2349# with Shapir and assume that it observed DST from 1940 through 1947, 2350# and that it used Jordanian rules starting in 1996. 2351# We don't yet need a separate entry for the West Bank, since 2352# the only differences between it and Gaza that we know about 2353# occurred before our cutoff date of 1970. 2354# However, as we get more information, we may need to add entries 2355# for parts of the West Bank as they transitioned from Israel's rules 2356# to Palestine's rules. 2357 2358# From IINS News Service - Israel - 1998-03-23 10:38:07 Israel time, 2359# forwarded by Ephraim Silverberg: 2360# 2361# Despite the fact that Israel changed over to daylight savings time 2362# last week, the PLO Authority (PA) has decided not to turn its clocks 2363# one-hour forward at this time. As a sign of independence from Israeli rule, 2364# the PA has decided to implement DST in April. 2365 2366# From Paul Eggert (1999-09-20): 2367# Daoud Kuttab writes in Holiday havoc 2368# http://www.jpost.com/com/Archive/22.Apr.1999/Opinion/Article-2.html 2369# (Jerusalem Post, 1999-04-22) that 2370# the Palestinian National Authority changed to DST on 1999-04-15. 2371# I vaguely recall that they switch back in October (sorry, forgot the source). 2372# For now, let's assume that the spring switch was at 24:00, 2373# and that they switch at 0:00 on the 3rd Fridays of April and October. 2374 2375# From Paul Eggert (2005-11-22): 2376# Starting 2004 transitions are from Steffen Thorsen's web site timeanddate.com. 2377 2378# From Steffen Thorsen (2005-11-23): 2379# A user from Gaza reported that Gaza made the change early because of 2380# the Ramadan. Next year Ramadan will be even earlier, so I think 2381# there is a good chance next year's end date will be around two weeks 2382# earlier - the same goes for Jordan. 2383 2384# From Steffen Thorsen (2006-08-17): 2385# I was informed by a user in Bethlehem that in Bethlehem it started the 2386# same day as Israel, and after checking with other users in the area, I 2387# was informed that they started DST one day after Israel. I was not 2388# able to find any authoritative sources at the time, nor details if 2389# Gaza changed as well, but presumed Gaza to follow the same rules as 2390# the West Bank. 2391 2392# From Steffen Thorsen (2006-09-26): 2393# according to the Palestine News Network (2006-09-19): 2394# http://english.pnn.ps/index.php?option=com_content&task=view&id=596&Itemid=5 2395# > The Council of Ministers announced that this year its winter schedule 2396# > will begin early, as of midnight Thursday. It is also time to turn 2397# > back the clocks for winter. Friday will begin an hour late this week. 2398# I guess it is likely that next year's date will be moved as well, 2399# because of the Ramadan. 2400 2401# From Jesper Nørgaard Welen (2007-09-18): 2402# According to Steffen Thorsen's web site the Gaza Strip and the rest of the 2403# Palestinian territories left DST early on 13.th. of September at 2:00. 2404 2405# From Paul Eggert (2007-09-20): 2406# My understanding is that Gaza and the West Bank disagree even over when 2407# the weekend is (Thursday+Friday versus Friday+Saturday), so I'd be a bit 2408# surprised if they agreed about DST. But for now, assume they agree. 2409# For lack of better information, predict that future changes will be 2410# the 2nd Thursday of September at 02:00. 2411 2412# From Alexander Krivenyshev (2008-08-28): 2413# Here is an article, that Mideast running on different clocks at Ramadan. 2414# 2415# Gaza Strip (as Egypt) ended DST at midnight Thursday (Aug 28, 2008), while 2416# the West Bank will end Daylight Saving Time at midnight Sunday (Aug 31, 2008). 2417# 2418# http://www.guardian.co.uk/world/feedarticle/7759001 2419# http://www.abcnews.go.com/International/wireStory?id=5676087 2420# http://www.worldtimezone.com/dst_news/dst_news_gazastrip01.html 2421 2422# From Alexander Krivenyshev (2009-03-26): 2423# According to the Palestine News Network (arabic.pnn.ps), Palestinian 2424# government decided to start Daylight Time on Thursday night March 2425# 26 and continue until the night of 27 September 2009. 2426# 2427# (in Arabic) 2428# http://arabic.pnn.ps/index.php?option=com_content&task=view&id=50850 2429# 2430# (English translation) 2431# http://www.worldtimezone.com/dst_news/dst_news_westbank01.html 2432 2433# From Steffen Thorsen (2009-08-31): 2434# Palestine's Council of Ministers announced that they will revert back to 2435# winter time on Friday, 2009-09-04. 2436# 2437# One news source: 2438# http://www.safa.ps/ara/?action=showdetail&seid=4158 2439# (Palestinian press agency, Arabic), 2440# Google translate: "Decided that the Palestinian government in Ramallah 2441# headed by Salam Fayyad, the start of work in time for the winter of 2442# 2009, starting on Friday approved the fourth delay Sept. clock sixty 2443# minutes per hour as of Friday morning." 2444# 2445# We are not sure if Gaza will do the same, last year they had a different 2446# end date, we will keep this page updated: 2447# http://www.timeanddate.com/news/time/westbank-gaza-dst-2009.html 2448 2449# From Alexander Krivenyshev (2009-09-02): 2450# Seems that Gaza Strip will go back to Winter Time same date as West Bank. 2451# 2452# According to Palestinian Ministry Of Interior, West Bank and Gaza Strip plan 2453# to change time back to Standard time on September 4, 2009. 2454# 2455# "Winter time unite the West Bank and Gaza" 2456# (from Palestinian National Authority): 2457# http://www.moi.gov.ps/en/?page=633167343250594025&nid=11505 2458# http://www.worldtimezone.com/dst_news/dst_news_gazastrip02.html 2459 2460# From Alexander Krivenyshev (2010-03-19): 2461# According to Voice of Palestine DST will last for 191 days, from March 2462# 26, 2010 till "the last Sunday before the tenth day of Tishri 2463# (October), each year" (October 03, 2010?) 2464# 2465# http://palvoice.org/forums/showthread.php?t=245697 2466# (in Arabic) 2467# http://www.worldtimezone.com/dst_news/dst_news_westbank03.html 2468 2469# From Steffen Thorsen (2010-03-24): 2470# ...Ma'an News Agency reports that Hamas cabinet has decided it will 2471# start one day later, at 12:01am. Not sure if they really mean 12:01am or 2472# noon though: 2473# 2474# http://www.maannews.net/eng/ViewDetails.aspx?ID=271178 2475# (Ma'an News Agency) 2476# "At 12:01am Friday, clocks in Israel and the West Bank will change to 2477# 1:01am, while Gaza clocks will change at 12:01am Saturday morning." 2478 2479# From Steffen Thorsen (2010-08-11): 2480# According to several sources, including 2481# http://www.maannews.net/eng/ViewDetails.aspx?ID=306795 2482# the clocks were set back one hour at 2010-08-11 00:00:00 local time in 2483# Gaza and the West Bank. 2484# Some more background info: 2485# http://www.timeanddate.com/news/time/westbank-gaza-end-dst-2010.html 2486 2487# From Steffen Thorsen (2011-08-26): 2488# Gaza and the West Bank did go back to standard time in the beginning of 2489# August, and will now enter daylight saving time again on 2011-08-30 2490# 00:00 (so two periods of DST in 2011). The pause was because of 2491# Ramadan. 2492# 2493# http://www.maannews.net/eng/ViewDetails.aspx?ID=416217 2494# Additional info: 2495# http://www.timeanddate.com/news/time/palestine-dst-2011.html 2496 2497# From Alexander Krivenyshev (2011-08-27): 2498# According to the article in The Jerusalem Post: 2499# "...Earlier this month, the Palestinian government in the West Bank decided to 2500# move to standard time for 30 days, during Ramadan. The Palestinians in the 2501# Gaza Strip accepted the change and also moved their clocks one hour back. 2502# The Hamas government said on Saturday that it won't observe summertime after 2503# the Muslim feast of Id al-Fitr, which begins on Tuesday..." 2504# ... 2505# http://www.jpost.com/MiddleEast/Article.aspx?id=235650 2506# http://www.worldtimezone.com/dst_news/dst_news_gazastrip05.html 2507# The rules for Egypt are stolen from the 'africa' file. 2508 2509# From Steffen Thorsen (2011-09-30): 2510# West Bank did end Daylight Saving Time this morning/midnight (2011-09-30 2511# 00:00). 2512# So West Bank and Gaza now have the same time again. 2513# 2514# Many sources, including: 2515# http://www.maannews.net/eng/ViewDetails.aspx?ID=424808 2516 2517# From Steffen Thorsen (2012-03-26): 2518# Palestinian news sources tell that both Gaza and West Bank will start DST 2519# on Friday (Thursday midnight, 2012-03-29 24:00). 2520# Some of many sources in Arabic: 2521# http://www.samanews.com/index.php?act=Show&id=122638 2522# 2523# http://safa.ps/details/news/74352/%D8%A8%D8%AF%D8%A1-%D8%A7%D9%84%D8%AA%D9%88%D9%82%D9%8A%D8%AA-%D8%A7%D9%84%D8%B5%D9%8A%D9%81%D9%8A-%D8%A8%D8%A7%D9%84%D8%B6%D9%81%D8%A9-%D9%88%D8%BA%D8%B2%D8%A9-%D9%84%D9%8A%D9%84%D8%A9-%D8%A7%D9%84%D8%AC%D9%85%D8%B9%D8%A9.html 2524# 2525# Our brief summary: 2526# http://www.timeanddate.com/news/time/gaza-west-bank-dst-2012.html 2527 2528# From Steffen Thorsen (2013-03-26): 2529# The following news sources tells that Palestine will "start daylight saving 2530# time from midnight on Friday, March 29, 2013" (translated). 2531# [These are in Arabic and are for Gaza and for Ramallah, respectively.] 2532# http://www.samanews.com/index.php?act=Show&id=154120 2533# http://safa.ps/details/news/99844/%D8%B1%D8%A7%D9%85-%D8%A7%D9%84%D9%84%D9%87-%D8%A8%D8%AF%D8%A1-%D8%A7%D9%84%D8%AA%D9%88%D9%82%D9%8A%D8%AA-%D8%A7%D9%84%D8%B5%D9%8A%D9%81%D9%8A-29-%D8%A7%D9%84%D8%AC%D8%A7%D8%B1%D9%8A.html 2534 2535# From Steffen Thorsen (2013-09-24): 2536# The Gaza and West Bank are ending DST Thursday at midnight 2537# (2013-09-27 00:00:00) (one hour earlier than last year...). 2538# This source in English, says "that winter time will go into effect 2539# at midnight on Thursday in the West Bank and Gaza Strip": 2540# http://english.wafa.ps/index.php?action=detail&id=23246 2541# official source...: 2542# http://www.palestinecabinet.gov.ps/ar/Views/ViewDetails.aspx?pid=1252 2543 2544# From Steffen Thorsen (2015-03-03): 2545# Sources such as http://www.alquds.com/news/article/view/id/548257 2546# and http://www.raya.ps/ar/news/890705.html say Palestine areas will 2547# start DST on 2015-03-28 00:00 which is one day later than expected. 2548# 2549# From Paul Eggert (2015-03-03): 2550# http://www.timeanddate.com/time/change/west-bank/ramallah?year=2014 2551# says that the fall 2014 transition was Oct 23 at 24:00. 2552# For future dates, guess the last Friday in March at 24:00 through 2553# the first Friday on or after October 21 at 00:00. This is consistent with 2554# the predictions in today's editions of the following URLs: 2555# http://www.timeanddate.com/time/change/gaza-strip/gaza 2556# http://www.timeanddate.com/time/change/west-bank/hebron 2557 2558# From Hannah Kreitem (2016-03-09): 2559# http://www.palestinecabinet.gov.ps/WebSite/ar/ViewDetails?ID=31728 2560# [Google translation]: "The Council also decided to start daylight 2561# saving in Palestine as of one o'clock on Saturday morning, 2562# 2016-03-26, to provide the clock 60 minutes ahead." 2563# 2564# From Paul Eggert (2016-03-12): 2565# Predict spring transitions on March's last Saturday at 01:00 from now on. 2566# Leave fall predictions alone for now. 2567 2568# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 2569Rule EgyptAsia 1957 only - May 10 0:00 1:00 S 2570Rule EgyptAsia 1957 1958 - Oct 1 0:00 0 - 2571Rule EgyptAsia 1958 only - May 1 0:00 1:00 S 2572Rule EgyptAsia 1959 1967 - May 1 1:00 1:00 S 2573Rule EgyptAsia 1959 1965 - Sep 30 3:00 0 - 2574Rule EgyptAsia 1966 only - Oct 1 3:00 0 - 2575 2576Rule Palestine 1999 2005 - Apr Fri>=15 0:00 1:00 S 2577Rule Palestine 1999 2003 - Oct Fri>=15 0:00 0 - 2578Rule Palestine 2004 only - Oct 1 1:00 0 - 2579Rule Palestine 2005 only - Oct 4 2:00 0 - 2580Rule Palestine 2006 2007 - Apr 1 0:00 1:00 S 2581Rule Palestine 2006 only - Sep 22 0:00 0 - 2582Rule Palestine 2007 only - Sep Thu>=8 2:00 0 - 2583Rule Palestine 2008 2009 - Mar lastFri 0:00 1:00 S 2584Rule Palestine 2008 only - Sep 1 0:00 0 - 2585Rule Palestine 2009 only - Sep Fri>=1 1:00 0 - 2586Rule Palestine 2010 only - Mar 26 0:00 1:00 S 2587Rule Palestine 2010 only - Aug 11 0:00 0 - 2588Rule Palestine 2011 only - Apr 1 0:01 1:00 S 2589Rule Palestine 2011 only - Aug 1 0:00 0 - 2590Rule Palestine 2011 only - Aug 30 0:00 1:00 S 2591Rule Palestine 2011 only - Sep 30 0:00 0 - 2592Rule Palestine 2012 2014 - Mar lastThu 24:00 1:00 S 2593Rule Palestine 2012 only - Sep 21 1:00 0 - 2594Rule Palestine 2013 only - Sep Fri>=21 0:00 0 - 2595Rule Palestine 2014 max - Oct Fri>=21 0:00 0 - 2596Rule Palestine 2015 only - Mar lastFri 24:00 1:00 S 2597Rule Palestine 2016 max - Mar lastSat 1:00 1:00 S 2598 2599# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2600Zone Asia/Gaza 2:17:52 - LMT 1900 Oct 2601 2:00 Zion EET 1948 May 15 2602 2:00 EgyptAsia EE%sT 1967 Jun 5 2603 2:00 Zion I%sT 1996 2604 2:00 Jordan EE%sT 1999 2605 2:00 Palestine EE%sT 2008 Aug 29 0:00 2606 2:00 - EET 2008 Sep 2607 2:00 Palestine EE%sT 2010 2608 2:00 - EET 2010 Mar 27 0:01 2609 2:00 Palestine EE%sT 2011 Aug 1 2610 2:00 - EET 2012 2611 2:00 Palestine EE%sT 2612 2613Zone Asia/Hebron 2:20:23 - LMT 1900 Oct 2614 2:00 Zion EET 1948 May 15 2615 2:00 EgyptAsia EE%sT 1967 Jun 5 2616 2:00 Zion I%sT 1996 2617 2:00 Jordan EE%sT 1999 2618 2:00 Palestine EE%sT 2619 2620# Paracel Is 2621# no information 2622 2623# Philippines 2624# On 1844-08-16, Narciso Clavería, governor-general of the 2625# Philippines, issued a proclamation announcing that 1844-12-30 was to 2626# be immediately followed by 1845-01-01; see R.H. van Gent's 2627# History of the International Date Line 2628# http://www.staff.science.uu.nl/~gent0113/idl/idl_philippines.htm 2629# The rest of the data entries are from Shanks & Pottenger. 2630 2631# From Jesper Nørgaard Welen (2006-04-26): 2632# ... claims that Philippines had DST last time in 1990: 2633# http://story.philippinetimes.com/p.x/ct/9/id/145be20cc6b121c0/cid/3e5bbccc730d258c/ 2634# [a story dated 2006-04-25 by Cris Larano of Dow Jones Newswires, 2635# but no details] 2636 2637# From Paul Eggert (2014-08-14): 2638# The following source says DST may be instituted November-January and again 2639# March-June, but this is not definite. It also says DST was last proclaimed 2640# during the Ramos administration (1992-1998); but again, no details. 2641# Carcamo D. PNoy urged to declare use of daylight saving time. 2642# Philippine Star 2014-08-05 2643# http://www.philstar.com/headlines/2014/08/05/1354152/pnoy-urged-declare-use-daylight-saving-time 2644 2645# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 2646Rule Phil 1936 only - Nov 1 0:00 1:00 S 2647Rule Phil 1937 only - Feb 1 0:00 0 - 2648Rule Phil 1954 only - Apr 12 0:00 1:00 S 2649Rule Phil 1954 only - Jul 1 0:00 0 - 2650Rule Phil 1978 only - Mar 22 0:00 1:00 S 2651Rule Phil 1978 only - Sep 21 0:00 0 - 2652# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2653Zone Asia/Manila -15:56:00 - LMT 1844 Dec 31 2654 8:04:00 - LMT 1899 May 11 2655 8:00 Phil PH%sT 1942 May 2656 9:00 - JST 1944 Nov 2657 8:00 Phil PH%sT 2658 2659# Qatar 2660# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2661Zone Asia/Qatar 3:26:08 - LMT 1920 # Al Dawhah / Doha 2662 4:00 - GST 1972 Jun 2663 3:00 - AST 2664Link Asia/Qatar Asia/Bahrain 2665 2666# Saudi Arabia 2667# 2668# From Paul Eggert (2014-07-15): 2669# Time in Saudi Arabia and other countries in the Arabian peninsula was not 2670# standardized until relatively recently; we don't know when, and possibly it 2671# has never been made official. Richard P Hunt, in "Islam city yielding to 2672# modern times", New York Times (1961-04-09), p 20, wrote that only airlines 2673# observed standard time, and that people in Jeddah mostly observed quasi-solar 2674# time, doing so by setting their watches at sunrise to 6 o'clock (or to 12 2675# o'clock for "Arab" time). 2676# 2677# The TZ database cannot represent quasi-solar time; airline time is the best 2678# we can do. The 1946 foreign air news digest of the U.S. Civil Aeronautics 2679# Board (OCLC 42299995) reported that the "... Arabian Government, inaugurated 2680# a weekly Dhahran-Cairo service, via the Saudi Arabian cities of Riyadh and 2681# Jidda, on March 14, 1947". Shanks & Pottenger guessed 1950; go with the 2682# earlier date. 2683# 2684# Shanks & Pottenger also state that until 1968-05-01 Saudi Arabia had two 2685# time zones; the other zone, at UTC+4, was in the far eastern part of 2686# the country. Ignore this, as it's before our 1970 cutoff. 2687# 2688# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2689Zone Asia/Riyadh 3:06:52 - LMT 1947 Mar 14 2690 3:00 - AST 2691Link Asia/Riyadh Asia/Aden # Yemen 2692Link Asia/Riyadh Asia/Kuwait 2693 2694# Singapore 2695# taken from Mok Ly Yng (2003-10-30) 2696# http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html 2697# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2698Zone Asia/Singapore 6:55:25 - LMT 1901 Jan 1 2699 6:55:25 - SMT 1905 Jun 1 # Singapore M.T. 2700 7:00 - MALT 1933 Jan 1 # Malaya Time 2701 7:00 0:20 MALST 1936 Jan 1 2702 7:20 - MALT 1941 Sep 1 2703 7:30 - MALT 1942 Feb 16 2704 9:00 - JST 1945 Sep 12 2705 7:30 - MALT 1965 Aug 9 # independence 2706 7:30 - SGT 1982 Jan 1 # Singapore Time 2707 8:00 - SGT 2708 2709# Spratly Is 2710# no information 2711 2712# Sri Lanka 2713 2714# From Paul Eggert (2013-02-21): 2715# Milne says "Madras mean time use from May 1, 1898. Prior to this Colombo 2716# mean time, 5h. 4m. 21.9s. F., was used." But 5:04:21.9 differs considerably 2717# from Colombo's meridian 5:19:24, so for now ignore Milne and stick with 2718# Shanks and Pottenger. 2719 2720# From Paul Eggert (1996-09-03): 2721# "Sri Lanka advances clock by an hour to avoid blackout" 2722# (<http://www.virtual-pc.com/lankaweb/news/items/240596-2.html>, 1996-05-24, 2723# no longer available as of 1999-08-17) 2724# reported "the country's standard time will be put forward by one hour at 2725# midnight Friday (1830 GMT) 'in the light of the present power crisis'." 2726# 2727# From Dharmasiri Senanayake, Sri Lanka Media Minister (1996-10-24), as quoted 2728# by Shamindra in Daily News - Hot News Section 2729# <news:54rka5$m5h@mtinsc01-mgt.ops.worldnet.att.net> (1996-10-26): 2730# With effect from 12.30 a.m. on 26th October 1996 2731# Sri Lanka will be six (06) hours ahead of GMT. 2732 2733# From Jesper Nørgaard Welen (2006-04-14), quoting Sri Lanka News Online 2734# <http://news.sinhalaya.com/wmview.php?ArtID=11002> (2006-04-13): 2735# 0030 hrs on April 15, 2006 (midnight of April 14, 2006 +30 minutes) 2736# at present, become 2400 hours of April 14, 2006 (midnight of April 14, 2006). 2737 2738# From Peter Apps and Ranga Sirila of Reuters (2006-04-12) in: 2739# http://today.reuters.co.uk/news/newsArticle.aspx?type=scienceNews&storyID=2006-04-12T172228Z_01_COL295762_RTRIDST_0_SCIENCE-SRILANKA-TIME-DC.XML 2740# [The Tamil Tigers] never accepted the original 1996 time change and simply 2741# kept their clocks set five and a half hours ahead of Greenwich Mean 2742# Time (GMT), in line with neighbor India. 2743# From Paul Eggert (2006-04-18): 2744# People who live in regions under Tamil control can use [TZ='Asia/Kolkata'], 2745# as that zone has agreed with the Tamil areas since our cutoff date of 1970. 2746 2747# From K Sethu (2006-04-25): 2748# I think the abbreviation LKT originated from the world of computers at 2749# the time of or subsequent to the time zone changes by SL Government 2750# twice in 1996 and probably SL Government or its standardization 2751# agencies never declared an abbreviation as a national standard. 2752# 2753# I recollect before the recent change the government announcements 2754# mentioning it as simply changing Sri Lanka Standard Time or Sri Lanka 2755# Time and no mention was made about the abbreviation. 2756# 2757# If we look at Sri Lanka Department of Government's "Official News 2758# Website of Sri Lanka" ... http://www.news.lk/ we can see that they 2759# use SLT as abbreviation in time stamp at the beginning of each news 2760# item.... 2761# 2762# Within Sri Lanka I think LKT is well known among computer users and 2763# administrators. In my opinion SLT may not be a good choice because the 2764# nation's largest telcom / internet operator Sri Lanka Telcom is well 2765# known by that abbreviation - simply as SLT (there IP domains are 2766# slt.lk and sltnet.lk). 2767# 2768# But if indeed our government has adopted SLT as standard abbreviation 2769# (that we have not known so far) then it is better that it be used for 2770# all computers. 2771 2772# From Paul Eggert (2006-04-25): 2773# One possibility is that we wait for a bit for the dust to settle down 2774# and then see what people actually say in practice. 2775 2776# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2777Zone Asia/Colombo 5:19:24 - LMT 1880 2778 5:19:32 - MMT 1906 # Moratuwa Mean Time 2779 5:30 - IST 1942 Jan 5 2780 5:30 0:30 IHST 1942 Sep 2781 5:30 1:00 IST 1945 Oct 16 2:00 2782 5:30 - IST 1996 May 25 0:00 2783 6:30 - LKT 1996 Oct 26 0:30 2784 6:00 - LKT 2006 Apr 15 0:30 2785 5:30 - IST 2786 2787# Syria 2788# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 2789Rule Syria 1920 1923 - Apr Sun>=15 2:00 1:00 S 2790Rule Syria 1920 1923 - Oct Sun>=1 2:00 0 - 2791Rule Syria 1962 only - Apr 29 2:00 1:00 S 2792Rule Syria 1962 only - Oct 1 2:00 0 - 2793Rule Syria 1963 1965 - May 1 2:00 1:00 S 2794Rule Syria 1963 only - Sep 30 2:00 0 - 2795Rule Syria 1964 only - Oct 1 2:00 0 - 2796Rule Syria 1965 only - Sep 30 2:00 0 - 2797Rule Syria 1966 only - Apr 24 2:00 1:00 S 2798Rule Syria 1966 1976 - Oct 1 2:00 0 - 2799Rule Syria 1967 1978 - May 1 2:00 1:00 S 2800Rule Syria 1977 1978 - Sep 1 2:00 0 - 2801Rule Syria 1983 1984 - Apr 9 2:00 1:00 S 2802Rule Syria 1983 1984 - Oct 1 2:00 0 - 2803Rule Syria 1986 only - Feb 16 2:00 1:00 S 2804Rule Syria 1986 only - Oct 9 2:00 0 - 2805Rule Syria 1987 only - Mar 1 2:00 1:00 S 2806Rule Syria 1987 1988 - Oct 31 2:00 0 - 2807Rule Syria 1988 only - Mar 15 2:00 1:00 S 2808Rule Syria 1989 only - Mar 31 2:00 1:00 S 2809Rule Syria 1989 only - Oct 1 2:00 0 - 2810Rule Syria 1990 only - Apr 1 2:00 1:00 S 2811Rule Syria 1990 only - Sep 30 2:00 0 - 2812Rule Syria 1991 only - Apr 1 0:00 1:00 S 2813Rule Syria 1991 1992 - Oct 1 0:00 0 - 2814Rule Syria 1992 only - Apr 8 0:00 1:00 S 2815Rule Syria 1993 only - Mar 26 0:00 1:00 S 2816Rule Syria 1993 only - Sep 25 0:00 0 - 2817# IATA SSIM (1998-02) says 1998-04-02; 2818# (1998-09) says 1999-03-29 and 1999-09-29; (1999-02) says 1999-04-02, 2819# 2000-04-02, and 2001-04-02; (1999-09) says 2000-03-31 and 2001-03-31; 2820# (2006) says 2006-03-31 and 2006-09-22; 2821# for now ignore all these claims and go with Shanks & Pottenger, 2822# except for the 2006-09-22 claim (which seems right for Ramadan). 2823Rule Syria 1994 1996 - Apr 1 0:00 1:00 S 2824Rule Syria 1994 2005 - Oct 1 0:00 0 - 2825Rule Syria 1997 1998 - Mar lastMon 0:00 1:00 S 2826Rule Syria 1999 2006 - Apr 1 0:00 1:00 S 2827# From Stephen Colebourne (2006-09-18): 2828# According to IATA data, Syria will change DST on 21st September [21:00 UTC] 2829# this year [only].... This is probably related to Ramadan, like Egypt. 2830Rule Syria 2006 only - Sep 22 0:00 0 - 2831# From Paul Eggert (2007-03-29): 2832# Today the AP reported "Syria will switch to summertime at midnight Thursday." 2833# http://www.iht.com/articles/ap/2007/03/29/africa/ME-GEN-Syria-Time-Change.php 2834Rule Syria 2007 only - Mar lastFri 0:00 1:00 S 2835# From Jesper Nørgaard (2007-10-27): 2836# The sister center ICARDA of my work CIMMYT is confirming that Syria DST will 2837# not take place 1st November at 0:00 o'clock but 1st November at 24:00 or 2838# rather Midnight between Thursday and Friday. This does make more sense than 2839# having it between Wednesday and Thursday (two workdays in Syria) since the 2840# weekend in Syria is not Saturday and Sunday, but Friday and Saturday. So now 2841# it is implemented at midnight of the last workday before weekend... 2842# 2843# From Steffen Thorsen (2007-10-27): 2844# Jesper Nørgaard Welen wrote: 2845# 2846# > "Winter local time in Syria will be observed at midnight of Thursday 1 2847# > November 2007, and the clock will be put back 1 hour." 2848# 2849# I found confirmation on this in this gov.sy-article (Arabic): 2850# http://wehda.alwehda.gov.sy/_print_veiw.asp?FileName=12521710520070926111247 2851# 2852# which using Google's translate tools says: 2853# Council of Ministers also approved the commencement of work on 2854# identifying the winter time as of Friday, 2/11/2007 where the 60th 2855# minute delay at midnight Thursday 1/11/2007. 2856Rule Syria 2007 only - Nov Fri>=1 0:00 0 - 2857 2858# From Stephen Colebourne (2008-03-17): 2859# For everyone's info, I saw an IATA time zone change for [Syria] for 2860# this month (March 2008) in the last day or so.... 2861# Country Time Standard --- DST Start --- --- DST End --- DST 2862# Name Zone Variation Time Date Time Date 2863# Variation 2864# Syrian Arab 2865# Republic SY +0200 2200 03APR08 2100 30SEP08 +0300 2866# 2200 02APR09 2100 30SEP09 +0300 2867# 2200 01APR10 2100 30SEP10 +0300 2868 2869# From Arthur David Olson (2008-03-17): 2870# Here's a link to English-language coverage by the Syrian Arab News 2871# Agency (SANA)... 2872# http://www.sana.sy/eng/21/2008/03/11/165173.htm 2873# ...which reads (in part) "The Cabinet approved the suggestion of the 2874# Ministry of Electricity to begin daylight savings time on Friday April 2875# 4th, advancing clocks one hour ahead on midnight of Thursday April 3rd." 2876# Since Syria is two hours east of UTC, the 2200 and 2100 transition times 2877# shown above match up with midnight in Syria. 2878 2879# From Arthur David Olson (2008-03-18): 2880# My best guess at a Syrian rule is "the Friday nearest April 1"; 2881# coding that involves either using a "Mar Fri>=29" construct that old time zone 2882# compilers can't handle or having multiple Rules (a la Israel). 2883# For now, use "Apr Fri>=1", and go with IATA on a uniform Sep 30 end. 2884 2885# From Steffen Thorsen (2008-10-07): 2886# Syria has now officially decided to end DST on 2008-11-01 this year, 2887# according to the following article in the Syrian Arab News Agency (SANA). 2888# 2889# The article is in Arabic, and seems to tell that they will go back to 2890# winter time on 2008-11-01 at 00:00 local daylight time (delaying/setting 2891# clocks back 60 minutes). 2892# 2893# http://sana.sy/ara/2/2008/10/07/195459.htm 2894 2895# From Steffen Thorsen (2009-03-19): 2896# Syria will start DST on 2009-03-27 00:00 this year according to many sources, 2897# two examples: 2898# 2899# http://www.sana.sy/eng/21/2009/03/17/217563.htm 2900# (English, Syrian Arab News # Agency) 2901# http://thawra.alwehda.gov.sy/_View_news2.asp?FileName=94459258720090318012209 2902# (Arabic, gov-site) 2903# 2904# We have not found any sources saying anything about when DST ends this year. 2905# 2906# Our summary 2907# http://www.timeanddate.com/news/time/syria-dst-starts-march-27-2009.html 2908 2909# From Steffen Thorsen (2009-10-27): 2910# The Syrian Arab News Network on 2009-09-29 reported that Syria will 2911# revert back to winter (standard) time on midnight between Thursday 2912# 2009-10-29 and Friday 2009-10-30: 2913# http://www.sana.sy/ara/2/2009/09/29/247012.htm (Arabic) 2914 2915# From Arthur David Olson (2009-10-28): 2916# We'll see if future DST switching times turn out to be end of the last 2917# Thursday of the month or the start of the last Friday of the month or 2918# something else. For now, use the start of the last Friday. 2919 2920# From Steffen Thorsen (2010-03-17): 2921# The "Syrian News Station" reported on 2010-03-16 that the Council of 2922# Ministers has decided that Syria will start DST on midnight Thursday 2923# 2010-04-01: (midnight between Thursday and Friday): 2924# http://sns.sy/sns/?path=news/read/11421 (Arabic) 2925 2926# From Steffen Thorsen (2012-03-26): 2927# Today, Syria's government announced that they will start DST early on Friday 2928# (00:00). This is a bit earlier than the past two years. 2929# 2930# From Syrian Arab News Agency, in Arabic: 2931# http://www.sana.sy/ara/2/2012/03/26/408215.htm 2932# 2933# Our brief summary: 2934# http://www.timeanddate.com/news/time/syria-dst-2012.html 2935 2936# From Arthur David Olson (2012-03-27): 2937# Assume last Friday in March going forward XXX. 2938 2939Rule Syria 2008 only - Apr Fri>=1 0:00 1:00 S 2940Rule Syria 2008 only - Nov 1 0:00 0 - 2941Rule Syria 2009 only - Mar lastFri 0:00 1:00 S 2942Rule Syria 2010 2011 - Apr Fri>=1 0:00 1:00 S 2943Rule Syria 2012 max - Mar lastFri 0:00 1:00 S 2944Rule Syria 2009 max - Oct lastFri 0:00 0 - 2945 2946# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2947Zone Asia/Damascus 2:25:12 - LMT 1920 # Dimashq 2948 2:00 Syria EE%sT 2949 2950# Tajikistan 2951# From Shanks & Pottenger. 2952# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2953Zone Asia/Dushanbe 4:35:12 - LMT 1924 May 2 2954 5:00 - DUST 1930 Jun 21 # Dushanbe Time 2955 6:00 RussiaAsia DUS%sT 1991 Mar 31 2:00s 2956 5:00 1:00 DUSST 1991 Sep 9 2:00s 2957 5:00 - TJT # Tajikistan Time 2958 2959# Thailand 2960# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2961Zone Asia/Bangkok 6:42:04 - LMT 1880 2962 6:42:04 - BMT 1920 Apr # Bangkok Mean Time 2963 7:00 - ICT 2964Link Asia/Bangkok Asia/Phnom_Penh # Cambodia 2965Link Asia/Bangkok Asia/Vientiane # Laos 2966 2967# Turkmenistan 2968# From Shanks & Pottenger. 2969# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2970Zone Asia/Ashgabat 3:53:32 - LMT 1924 May 2 # or Ashkhabad 2971 4:00 - ASHT 1930 Jun 21 # Ashkhabad Time 2972 5:00 RussiaAsia ASH%sT 1991 Mar 31 2:00 2973 4:00 RussiaAsia ASH%sT 1991 Oct 27 # independence 2974 4:00 RussiaAsia TM%sT 1992 Jan 19 2:00 2975 5:00 - TMT 2976 2977# United Arab Emirates 2978# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2979Zone Asia/Dubai 3:41:12 - LMT 1920 2980 4:00 - GST 2981Link Asia/Dubai Asia/Muscat # Oman 2982 2983# Uzbekistan 2984# Byalokoz 1919 says Uzbekistan was 4:27:53. 2985# Zone NAME GMTOFF RULES FORMAT [UNTIL] 2986Zone Asia/Samarkand 4:27:53 - LMT 1924 May 2 2987 4:00 - SAMT 1930 Jun 21 # Samarkand Time 2988 5:00 - SAMT 1981 Apr 1 2989 5:00 1:00 SAMST 1981 Oct 1 2990 6:00 - TAST 1982 Apr 1 # Tashkent Time 2991 5:00 RussiaAsia SAM%sT 1991 Sep 1 # independence 2992 5:00 RussiaAsia UZ%sT 1992 2993 5:00 - UZT 2994# Milne says Tashkent was 4:37:10.8; round to nearest. 2995Zone Asia/Tashkent 4:37:11 - LMT 1924 May 2 2996 5:00 - TAST 1930 Jun 21 # Tashkent Time 2997 6:00 RussiaAsia TAS%sT 1991 Mar 31 2:00 2998 5:00 RussiaAsia TAS%sT 1991 Sep 1 # independence 2999 5:00 RussiaAsia UZ%sT 1992 3000 5:00 - UZT 3001 3002# Vietnam 3003 3004# From Paul Eggert (2014-10-04): 3005# Milne gives 7:16:56 for the meridian of Saigon in 1899, as being 3006# used in Lower Laos, Cambodia, and Annam. But this is quite a ways 3007# from Saigon's location. For now, ignore this and stick with Shanks 3008# and Pottenger for LMT before 1906. 3009 3010# From Arthur David Olson (2008-03-18): 3011# The English-language name of Vietnam's most populous city is "Ho Chi Minh 3012# City"; use Ho_Chi_Minh below to avoid a name of more than 14 characters. 3013 3014# From Paul Eggert (2014-10-21) after a heads-up from Trần Ngọc Quân: 3015# Trần Tiến Bình's authoritative book "Lịch Việt Nam: thế kỷ XX-XXI (1901-2100)" 3016# (Nhà xuất bản Văn Hoá - Thông Tin, Hanoi, 2005), pp 49-50, 3017# is quoted verbatim in: 3018# http://www.thoigian.com.vn/?mPage=P80D01 3019# is translated by Brian Inglis in: 3020# http://mm.icann.org/pipermail/tz/2014-October/021654.html 3021# and is the basis for the information below. 3022# 3023# The 1906 transition was effective July 1 and standardized Indochina to 3024# Phù Liễn Observatory, legally 104 deg. 17'17" east of Paris. 3025# It's unclear whether this meant legal Paris Mean Time (00:09:21) or 3026# the Paris Meridian (2 deg. 20'14.03" E); the former yields 07:06:30.1333... 3027# and the latter 07:06:29.333... so either way it rounds to 07:06:30, 3028# which is used below even though the modern-day Phù Liễn Observatory 3029# is closer to 07:06:31. Abbreviate Phù Liễn Mean Time as PLMT. 3030# 3031# The following transitions occurred in Indochina in general (before 1954) 3032# and in South Vietnam in particular (after 1954): 3033# To 07:00 on 1911-05-01. 3034# To 08:00 on 1942-12-31 at 23:00. 3035# To 09:00 in 1945-03-14 at 23:00. 3036# To 07:00 on 1945-09-02 in Vietnam. 3037# To 08:00 on 1947-04-01 in French-controlled Indochina. 3038# To 07:00 on 1955-07-01 in South Vietnam. 3039# To 08:00 on 1959-12-31 at 23:00 in South Vietnam. 3040# To 07:00 on 1975-06-13 in South Vietnam. 3041# 3042# Trần cites the following sources; it's unclear which supplied the info above. 3043# 3044# Hoàng Xuân Hãn: "Lịch và lịch Việt Nam". Tập san Khoa học Xã hội, 3045# No. 9, Paris, February 1982. 3046# 3047# Lê Thành Lân: "Lịch và niên biểu lịch sử hai mươi thế kỷ (0001-2010)", 3048# NXB Thống kê, Hanoi, 2000. 3049# 3050# Lê Thành Lân: "Lịch hai thế kỷ (1802-2010) và các lịch vĩnh cửu", 3051# NXB Thuận Hoá, Huế, 1995. 3052 3053# Zone NAME GMTOFF RULES FORMAT [UNTIL] 3054Zone Asia/Ho_Chi_Minh 7:06:40 - LMT 1906 Jul 1 3055 7:06:30 - PLMT 1911 May 1 3056 7:00 - ICT 1942 Dec 31 23:00 3057 8:00 - IDT 1945 Mar 14 23:00 3058 9:00 - JST 1945 Sep 2 3059 7:00 - ICT 1947 Apr 1 3060 8:00 - IDT 1955 Jul 1 3061 7:00 - ICT 1959 Dec 31 23:00 3062 8:00 - IDT 1975 Jun 13 3063 7:00 - ICT 3064 3065# Yemen 3066# See Asia/Riyadh. 3067