1News for the tz database 2 3Release 2016c - 2016-03-23 00:51:27 -0700 4 5 Changes affecting future time stamps 6 7 Azerbaijan no longer observes DST. (Thanks to Steffen Thorsen.) 8 9 Chile reverts from permanent to seasonal DST. (Thanks to Juan 10 Correa for the heads-up, and to Tim Parenti for corrections.) 11 Guess that future transitions are August's and May's second 12 Saturdays at 24:00 mainland time. Also, call the period from 13 2014-09-07 through 2016-05-14 daylight saving time instead of 14 standard time, as that seems more appropriate now. 15 16 Changes affecting past time stamps 17 18 Europe/Kaliningrad and Europe/Vilnius changed from +03/+04 to 19 +02/+03 on 1989-03-26, not 1991-03-31. Europe/Volgograd changed 20 from +04/+05 to +03/+04 on 1988-03-27, not 1989-03-26. 21 (Thanks to Stepan Golosunov.) 22 23 Changes to commentary 24 25 Several updates and URLs for historical and proposed Russian changes. 26 (Thanks to Stepan Golosunov, Matt Johnson, and Alexander Krivenyshev.) 27 28 29Release 2016b - 2016-03-12 17:30:14 -0800 30 31 Changes affecting future time stamps 32 33 New zones Europe/Astrakhan and Europe/Ulyanovsk for Astrakhan and 34 Ulyanovsk Oblasts, Russia, both of which will switch from +03 to +04 on 35 2016-03-27 at 02:00 local time. They need distinct zones since their 36 post-1970 histories disagree. New zone Asia/Barnaul for Altai Krai and 37 Altai Republic, Russia, which will switch from +06 to +07 on the same date 38 and local time. The Astrakhan change is already official; the others have 39 passed the first reading in the State Duma and are extremely likely. 40 Also, Asia/Sakhalin moves from +10 to +11 on 2016-03-27 at 02:00. 41 (Thanks to Alexander Krivenyshev for the heads-up, and to Matt Johnson 42 and Stepan Golosunov for followup.) 43 44 As a trial of a new system that needs less information to be made up, 45 the new zones use numeric time zone abbreviations like "+04" 46 instead of invented abbreviations like "ASTT". 47 48 Haiti will not observe DST in 2016. (Thanks to Jean Antoine via 49 Steffen Thorsen.) 50 51 Palestine's spring-forward transition on 2016-03-26 is at 01:00, not 00:00. 52 (Thanks to Hannah Kreitem.) Guess future transitions will be March's last 53 Saturday at 01:00, not March's last Friday at 24:00. 54 55 Changes affecting past time stamps 56 57 Europe/Chisinau observed DST during 1990, and switched from +04 to 58 +03 at 1990-05-06 02:00, instead of switching from +03 to +02. 59 (Thanks to Stepan Golosunov.) 60 61 1991 abbreviations in Europe/Samara should be SAMT/SAMST, not 62 KUYT/KUYST. (Thanks to Stepan Golosunov.) 63 64 Changes to code 65 66 tzselect's diagnostics and checking, and checktab.awk's checking, 67 have been improved. (Thanks to J William Piggott.) 68 69 tzcode now builds under MinGW. (Thanks to Ian Abbott and Esben Haabendal.) 70 71 tzselect now tests Julian-date TZ settings more accurately. 72 (Thanks to J William Piggott.) 73 74 Changes to commentary 75 76 Comments in zone tables have been improved. (Thanks to J William Piggott.) 77 78 tzselect again limits its menu comments so that menus fit on a 79 24x80 alphanumeric display. 80 81 A new web page tz-how-to.html. (Thanks to Bill Seymour.) 82 83 In the Theory file, the description of possible time zone abbreviations in 84 tzdata has been cleaned up, as the old description was unclear and 85 inconsistent. (Thanks to Alain Mouette for reporting the problem.) 86 87 88Release 2016a - 2016-01-26 23:28:02 -0800 89 90 Changes affecting future time stamps 91 92 America/Cayman will not observe daylight saving this year after all. 93 Revert our guess that it would. (Thanks to Matt Johnson.) 94 95 Asia/Chita switches from +0800 to +0900 on 2016-03-27 at 02:00. 96 (Thanks to Alexander Krivenyshev.) 97 98 Asia/Tehran now has DST predictions for the year 2038 and later, 99 to be March 21 00:00 to September 21 00:00. This is likely better 100 than predicting no DST, albeit off by a day every now and then. 101 102 Changes affecting past and future time stamps 103 104 America/Metlakatla switched from PST all year to AKST/AKDT on 105 2015-11-01 at 02:00. (Thanks to Steffen Thorsen.) 106 107 America/Santa_Isabel has been removed, and replaced with a 108 backward compatibility link to America/Tijuana. Its contents were 109 apparently based on a misreading of Mexican legislation. 110 111 Changes affecting past time stamps 112 113 Asia/Karachi's two transition times in 2002 were off by a minute. 114 (Thanks to Matt Johnson.) 115 116 Changes affecting build procedure 117 118 An installer can now combine leap seconds with use of the backzone file, 119 e.g., with 'make PACKRATDATA=backzone REDO=posix_right zones'. 120 The old 'make posix_packrat' rule is now marked as obsolescent. 121 (Thanks to Ian Abbott for an initial implementation.) 122 123 Changes affecting documentation and commentary 124 125 A new file LICENSE makes it easier to see that the code and data 126 are mostly public-domain. (Thanks to James Knight.) The three 127 non-public-domain files now use the current (3-clause) BSD license 128 instead of older versions of that license. 129 130 tz-link.htm mentions the BDE library (thanks to Andrew Paprocki), 131 CCTZ (thanks to Tim Parenti), TimeJones.com, and has a new section 132 on editing tz source files (with a mention of Sublime zoneinfo, 133 thanks to Gilmore Davidson). 134 135 The Theory and asia files now mention the 2015 book "The Global 136 Transformation of Time, 1870-1950", and cite a couple of reviews. 137 138 The America/Chicago entry now documents the informal use of US 139 central time in Fort Pierre, South Dakota. (Thanks to Rick 140 McDermid, Matt Johnson, and Steve Jones.) 141 142 143Release 2015g - 2015-10-01 00:39:51 -0700 144 145 Changes affecting future time stamps 146 147 Turkey's 2015 fall-back transition is scheduled for Nov. 8, not Oct. 25. 148 (Thanks to Fatih.) 149 150 Norfolk moves from +1130 to +1100 on 2015-10-04 at 02:00 local time. 151 (Thanks to Alexander Krivenyshev.) 152 153 Fiji's 2016 fall-back transition is scheduled for January 17, not 24. 154 (Thanks to Ken Rylander.) 155 156 Fort Nelson, British Columbia will not fall back on 2015-11-01. It has 157 effectively been on MST (-0700) since it advanced its clocks on 2015-03-08. 158 New zone America/Fort_Nelson. (Thanks to Matt Johnson.) 159 160 Changes affecting past time stamps 161 162 Norfolk observed DST from 1974-10-27 02:00 to 1975-03-02 02:00. 163 164 Changes affecting code 165 166 localtime no longer mishandles America/Anchorage after 2037. 167 (Thanks to Bradley White for reporting the bug.) 168 169 On hosts with signed 32-bit time_t, localtime no longer mishandles 170 Pacific/Fiji after 2038-01-16 14:00 UTC. 171 172 The localtime module allows the variables 'timezone', 'daylight', 173 and 'altzone' to be in common storage shared with other modules, 174 and declares them in case the system <time.h> does not. 175 (Problems reported by Kees Dekker.) 176 177 On platforms with tm_zone, strftime.c now assumes it is not NULL. 178 This simplifies the code and is consistent with zdump.c. 179 (Problem reported by Christos Zoulas.) 180 181 Changes affecting documentation 182 183 The tzfile man page now documents that transition times denote the 184 starts (not the ends) of the corresponding time periods. 185 (Ambiguity reported by Bill Seymour.) 186 187 188Release 2015f - 2015-08-10 18:06:56 -0700 189 190 Changes affecting future time stamps 191 192 North Korea switches to +0830 on 2015-08-15. (Thanks to Steffen Thorsen.) 193 The abbreviation remains "KST". (Thanks to Robert Elz.) 194 195 Uruguay no longer observes DST. (Thanks to Steffen Thorsen 196 and Pablo Camargo.) 197 198 Changes affecting past and future time stamps 199 200 Moldova starts and ends DST at 00:00 UTC, not at 01:00 UTC. 201 (Thanks to Roman Tudos.) 202 203 Changes affecting data format and code 204 205 zic's '-y YEARISTYPE' option is no longer documented. The TYPE 206 field of a Rule line should now be '-'; the old values 'even', 207 'odd', 'uspres', 'nonpres', 'nonuspres' were already undocumented. 208 Although the implementation has not changed, these features do not 209 work in the default installation, they are not used in the data, 210 and they are now considered obsolescent. 211 212 zic now checks that two rules don't take effect at the same time. 213 (Thanks to Jon Skeet and Arthur David Olson.) Constraints on 214 simultaneity are now documented. 215 216 The two characters '%z' in a zone format now stand for the UTC 217 offset, e.g., '-07' for seven hours behind UTC and '+0530' for 218 five hours and thirty minutes ahead. This better supports time 219 zone abbreviations conforming to POSIX.1-2001 and later. 220 221 Changes affecting installed data files 222 223 Comments for America/Halifax and America/Glace_Bay have been improved. 224 (Thanks to Brian Inglis.) 225 226 Data entries have been simplified for Atlantic/Canary, Europe/Simferopol, 227 Europe/Sofia, and Europe/Tallinn. This yields slightly smaller 228 installed data files for Europe/Simferopol and Europe/Tallinn. 229 It does not affect timestamps. (Thanks to Howard Hinnant.) 230 231 Changes affecting code 232 233 zdump and zic no longer warn about valid time zone abbreviations 234 like '-05'. 235 236 Some Visual Studio 2013 warnings have been suppressed. 237 (Thanks to Kees Dekker.) 238 239 'date' no longer sets the time of day and its -a, -d, -n and -t 240 options have been removed. Long obsolescent, the implementation 241 of these features had porting problems. Builders no longer need 242 to configure HAVE_ADJTIME, HAVE_SETTIMEOFDAY, or HAVE_UTMPX_H. 243 (Thanks to Kees Dekker for pointing out the problem.) 244 245 Changes affecting documentation 246 247 The Theory file mentions naming issues earlier, as these seem to be 248 poorly publicized (thanks to Gilmore Davidson for reporting the problem). 249 250 tz-link.htm mentions Time Zone Database Parser (thanks to Howard Hinnant). 251 252 Mention that Herbert Samuel introduced the term "Summer Time". 253 254 255Release 2015e - 2015-06-13 10:56:02 -0700 256 257 Changes affecting future time stamps 258 259 Morocco will suspend DST from 2015-06-14 03:00 through 2015-07-19 02:00, 260 not 06-13 and 07-18 as we had guessed. (Thanks to Milamber.) 261 262 Assume Cayman Islands will observe DST starting next year, using US rules. 263 Although it isn't guaranteed, it is the most likely. 264 265 Changes affecting data format 266 267 The file 'iso3166.tab' now uses UTF-8, so that its entries can better 268 spell the names of Åland Islands, Côte d'Ivoire, and Réunion. 269 270 Changes affecting code 271 272 When displaying data, tzselect converts it to the current locale's 273 encoding if the iconv command works. (Problem reported by random832.) 274 275 tzselect no longer mishandles Dominica, fixing a bug introduced 276 in Release 2014f. (Problem reported by Owen Leibman.) 277 278 zic -l no longer fails when compiled with -DTZDEFAULT=\"/etc/localtime\". 279 This fixes a bug introduced in Release 2014f. 280 (Problem reported by Leonardo Chiquitto.) 281 282 283Release 2015d - 2015-04-24 08:09:46 -0700 284 285 Changes affecting future time stamps 286 287 Egypt will not observe DST in 2015 and will consider canceling it 288 permanently. For now, assume no DST indefinitely. 289 (Thanks to Ahmed Nazmy and Tim Parenti.) 290 291 Changes affecting past time stamps 292 293 America/Whitehorse switched from UTC-9 to UTC-8 on 1967-05-28, not 294 1966-07-01. Also, Yukon's time zone history is documented better. 295 (Thanks to Brian Inglis and Dennis Ferguson.) 296 297 Change affecting past and future time zone abbreviations 298 299 The abbreviations for Hawaii-Aleutian standard and daylight times 300 have been changed from HAST/HADT to HST/HDT, as per US Government 301 Printing Office style. This affects only America/Adak since 1983, 302 as America/Honolulu was already using the new style. 303 304 Changes affecting code 305 306 zic has some minor performance improvements. 307 308 309Release 2015c - 2015-04-11 08:55:55 -0700 310 311 Changes affecting future time stamps 312 313 Egypt's spring-forward transition is at 24:00 on April's last Thursday, 314 not 00:00 on April's last Friday. 2015's transition will therefore be on 315 Thursday, April 30 at 24:00, not Friday, April 24 at 00:00. Similar fixes 316 apply to 2026, 2037, 2043, etc. (Thanks to Steffen Thorsen.) 317 318 Changes affecting past time stamps 319 320 The following changes affect some pre-1991 Chile-related time stamps 321 in America/Santiago, Antarctica/Palmer, and Pacific/Easter. 322 323 The 1910 transition was January 10, not January 1. 324 325 The 1918 transition was September 10, not September 1. 326 327 The UTC-4 time observed from 1932 to 1942 is now considered to be 328 standard time, not year-round DST. 329 330 Santiago observed DST (UTC-3) from 1946-07-15 through 1946-08-31, 331 then reverted to standard time, then switched its time zone to 332 UTC-5 on 1947-04-01. 333 334 Assume transitions before 1968 were at 00:00, since we have no data 335 saying otherwise. 336 337 The spring 1988 transition was 1988-10-09, not 1988-10-02. 338 The fall 1990 transition was 1990-03-11, not 1990-03-18. 339 340 Assume no UTC offset change for Pacific/Easter on 1890-01-01, 341 and omit all transitions on Pacific/Easter from 1942 through 1946 342 since we have no data suggesting that they existed. 343 344 One more zone has been turned into a link, as it differed 345 from an existing zone only for older time stamps. As usual, 346 this change affects UTC offsets in pre-1970 time stamps only. 347 The zone's old contents have been moved to the 'backzone' file. 348 The affected zone is America/Montreal. 349 350 Changes affecting commentary 351 352 Mention the TZUpdater tool. 353 354 Mention "The Time Now". (Thanks to Brandon Ramsey.) 355 356 357Release 2015b - 2015-03-19 23:28:11 -0700 358 359 Changes affecting future time stamps 360 361 Mongolia will start observing DST again this year, from the last 362 Saturday in March at 02:00 to the last Saturday in September at 00:00. 363 (Thanks to Ganbold Tsagaankhuu.) 364 365 Palestine will start DST on March 28, not March 27. Also, 366 correct the fall 2014 transition from September 26 to October 24. 367 Adjust future predictions accordingly. (Thanks to Steffen Thorsen.) 368 369 Changes affecting past time stamps 370 371 The 1982 zone shift in Pacific/Easter has been corrected, fixing a 2015a 372 regression. (Thanks to Stuart Bishop for reporting the problem.) 373 374 Some more zones have been turned into links, when they differed 375 from existing zones only for older time stamps. As usual, 376 these changes affect UTC offsets in pre-1970 time stamps only. 377 Their old contents have been moved to the 'backzone' file. 378 The affected zones are: America/Antigua, America/Cayman, 379 Pacific/Midway, and Pacific/Saipan. 380 381 Changes affecting time zone abbreviations 382 383 Correct the 1992-2010 DST abbreviation in Volgograd from "MSK" to "MSD". 384 (Thanks to Hank W.) 385 386 Changes affecting code 387 388 Fix integer overflow bug in reference 'mktime' implementation. 389 (Problem reported by Jörg Richter.) 390 391 Allow -Dtime_tz=time_t compilations, and allow -Dtime_tz=... libraries 392 to be used in the same executable as standard-library time_t functions. 393 (Problems reported by Bradley White.) 394 395 Changes affecting commentary 396 397 Cite the recent Mexican decree changing Quintana Roo's time zone. 398 (Thanks to Carlos Raúl Perasso.) 399 400 Likewise for the recent Chilean decree. (Thanks to Eduardo Romero Urra.) 401 402 Update info about Mars time. 403 404 405Release 2015a - 2015-01-29 22:35:20 -0800 406 407 Changes affecting future time stamps 408 409 The Mexican state of Quintana Roo, represented by America/Cancun, 410 will shift from Central Time with DST to Eastern Time without DST 411 on 2015-02-01 at 02:00. (Thanks to Steffen Thorsen and Gwillim Law.) 412 413 Chile will not change clocks in April or thereafter; its new standard time 414 will be its old daylight saving time. This affects America/Santiago, 415 Pacific/Easter, and Antarctica/Palmer. (Thanks to Juan Correa.) 416 417 New leap second 2015-06-30 23:59:60 UTC as per IERS Bulletin C 49. 418 (Thanks to Tim Parenti.) 419 420 Changes affecting past time stamps 421 422 Iceland observed DST in 1919 and 1921, and its 1939 fallback 423 transition was Oct. 29, not Nov. 29. Remove incorrect data from 424 Shanks about time in Iceland between 1837 and 1908. 425 426 Some more zones have been turned into links, when they differed 427 from existing zones only for older time stamps. As usual, 428 these changes affect UTC offsets in pre-1970 time stamps only. 429 Their old contents have been moved to the 'backzone' file. 430 The affected zones are: Asia/Aden, Asia/Bahrain, Asia/Kuwait, 431 and Asia/Muscat. 432 433 Changes affecting code 434 435 tzalloc now scrubs time zone abbreviations compatibly with the way 436 that tzset always has, by replacing invalid bytes with '_' and by 437 shortening too-long abbreviations. 438 439 tzselect ports to POSIX awk implementations, no longer mishandles 440 POSIX TZ settings when GNU awk is used, and reports POSIX TZ 441 settings to the user. (Thanks to Stefan Kuhn.) 442 443 Changes affecting build procedure 444 445 'make check' now checks for links to links in the data. 446 One such link (for Africa/Asmera) has been fixed. 447 (Thanks to Stephen Colebourne for pointing out the problem.) 448 449 Changes affecting commentary 450 451 The leapseconds file commentary now mentions the expiration date. 452 (Problem reported by Martin Burnicki.) 453 454 Update Mexican Library of Congress URL. 455 456 457Release 2014j - 2014-11-10 17:37:11 -0800 458 459 Changes affecting current and future time stamps 460 461 Turks & Caicos' switch from US eastern time to UTC-4 year-round 462 did not occur on 2014-11-02 at 02:00. It's currently scheduled 463 for 2015-11-01 at 02:00. (Thanks to Chris Walton.) 464 465 Changes affecting past time stamps 466 467 Many pre-1989 time stamps have been corrected for Asia/Seoul and 468 Asia/Pyongyang, based on sources for the Korean-language Wikipedia 469 entry for time in Korea. (Thanks to Sanghyuk Jung.) Also, no 470 longer guess that Pyongyang mimicked Seoul time after World War II, 471 as this is politically implausible. 472 473 Some more zones have been turned into links, when they differed 474 from existing zones only for older time stamps. As usual, 475 these changes affect UTC offsets in pre-1970 time stamps only. 476 Their old contents have been moved to the 'backzone' file. 477 The affected zones are: Africa/Addis_Ababa, Africa/Asmara, 478 Africa/Dar_es_Salaam, Africa/Djibouti, Africa/Kampala, 479 Africa/Mogadishu, Indian/Antananarivo, Indian/Comoro, and 480 Indian/Mayotte. 481 482 Changes affecting commentary 483 484 The commentary is less enthusiastic about Shanks as a source, 485 and is more careful to distinguish UT from UTC. 486 487 488Release 2014i - 2014-10-21 22:04:57 -0700 489 490 Changes affecting future time stamps 491 492 Pacific/Fiji will observe DST from 2014-11-02 02:00 to 2015-01-18 03:00. 493 (Thanks to Ken Rylander for the heads-up.) Guess that future 494 years will use a similar pattern. 495 496 A new Zone Pacific/Bougainville, for the part of Papua New Guinea 497 that plans to switch from UTC+10 to UTC+11 on 2014-12-28 at 02:00. 498 (Thanks to Kiley Walbom for the heads-up.) 499 500 Changes affecting time zone abbreviations 501 502 Since Belarus is not changing its clocks even though Moscow is, 503 the time zone abbreviation in Europe/Minsk is changing from FET 504 to its more-traditional value MSK on 2014-10-26 at 01:00. 505 (Thanks to Alexander Bokovoy for the heads-up about Belarus.) 506 507 The new abbreviation IDT stands for the pre-1976 use of UT+8 in 508 Indochina, to distinguish it better from ICT (UT+7). 509 510 Changes affecting past time stamps 511 512 Many time stamps have been corrected for Asia/Ho_Chi_Minh before 1976 513 (thanks to Trần Ngọc Quân for an indirect pointer to Trần Tiến Bình's 514 authoritative book). Asia/Ho_Chi_Minh has been added to 515 zone1970.tab, to give tzselect users in Vietnam two choices, 516 since north and south Vietnam disagreed after our 1970 cutoff. 517 518 Asia/Phnom_Penh and Asia/Vientiane have been turned into links, as 519 they differed from existing zones only for older time stamps. As 520 usual, these changes affect pre-1970 time stamps only. Their old 521 contents have been moved to the 'backzone' file. 522 523 Changes affecting code 524 525 The time-related library functions now set errno on failure, and 526 some crashes in the new tzalloc-related library functions have 527 been fixed. (Thanks to Christos Zoulas for reporting most of 528 these problems and for suggesting fixes.) 529 530 If USG_COMPAT is defined and the requested time stamp is standard time, 531 the tz library's localtime and mktime functions now set the extern 532 variable timezone to a value appropriate for that time stamp; and 533 similarly for ALTZONE, daylight saving time, and the altzone variable. 534 This change is a companion to the tzname change in 2014h, and is 535 designed to make timezone and altzone more compatible with tzname. 536 537 The tz library's functions now set errno to EOVERFLOW if they fail 538 because the result cannot be represented. ctime and ctime_r now 539 return NULL and set errno when a time stamp is out of range, rather 540 than having undefined behavior. 541 542 Some bugs associated with the new 2014g functions have been fixed. 543 This includes a bug that largely incapacitated the new functions 544 time2posix_z and posix2time_z. (Thanks to Christos Zoulas.) 545 It also includes some uses of uninitialized variables after tzalloc. 546 The new code uses the standard type 'ssize_t', which the Makefile 547 now gives porting advice about. 548 549 Changes affecting commentary 550 551 Updated URLs for NRC Canada (thanks to Matt Johnson and Brian Inglis). 552 553 554Release 2014h - 2014-09-25 18:59:03 -0700 555 556 Changes affecting past time stamps 557 558 America/Jamaica's 1974 spring-forward transition was Jan. 6, not Apr. 28. 559 560 Shanks says Asia/Novokuznetsk switched from LMT (not "NMT") on 1924-05-01, 561 not 1920-01-06. The old entry was based on a misinterpretation of Shanks. 562 563 Some more zones have been turned into links, when they differed 564 from existing zones only for older time stamps. As usual, 565 these changes affect UTC offsets in pre-1970 time stamps only. 566 Their old contents have been moved to the 'backzone' file. 567 The affected zones are: Africa/Blantyre, Africa/Bujumbura, 568 Africa/Gaborone, Africa/Harare, Africa/Kigali, Africa/Lubumbashi, 569 Africa/Lusaka, Africa/Maseru, and Africa/Mbabane. 570 571 Changes affecting code 572 573 zdump -V and -v now output gmtoff= values on all platforms, 574 not merely on platforms defining TM_GMTOFF. 575 576 The tz library's localtime and mktime functions now set tzname to a value 577 appropriate for the requested time stamp, and zdump now uses this 578 on platforms not defining TM_ZONE, fixing a 2014g regression. 579 (Thanks to Tim Parenti for reporting the problem.) 580 581 The tz library no longer sets tzname if localtime or mktime fails. 582 583 zdump -c no longer mishandles transitions near year boundaries. 584 (Thanks to Tim Parenti for reporting the problem.) 585 586 An access to uninitalized data has been fixed. 587 (Thanks to Jörg Richter for reporting the problem.) 588 589 When THREAD_SAFE is defined, the code ports to the C11 memory model. 590 A memory leak has been fixed if ALL_STATE and THREAD_SAFE are defined 591 and two threads race to initialize data used by gmtime-like functions. 592 (Thanks to Andy Heninger for reporting the problems.) 593 594 Changes affecting build procedure 595 596 'make check' now checks better for properly-sorted data. 597 598 Changes affecting documentation and commentary 599 600 zdump's gmtoff=N output is now documented, and its isdst=D output 601 is now documented to possibly output D values other than 0 or 1. 602 603 zdump -c's treatment of years is now documented to use the 604 Gregorian calendar and Universal Time without leap seconds, 605 and its behavior at cutoff boundaries is now documented better. 606 (Thanks to Arthur David Olson and Tim Parenti for reporting the problems.) 607 608 Programs are now documented to use the proleptic Gregorian calendar. 609 (Thanks to Alan Barrett for the suggestion.) 610 611 Fractional-second GMT offsets have been documented for civil time 612 in 19th-century Chennai, Jakarta, and New York. 613 614 615Release 2014g - 2014-08-28 12:31:23 -0700 616 617 Changes affecting future time stamps 618 619 Turks & Caicos is switching from US eastern time to UTC-4 year-round, 620 modeled as a switch from EST/EDT to AST on 2014-11-02 at 02:00. 621 [As noted in 2014j, this switch was later delayed.] 622 623 Changes affecting past time stamps 624 625 Time in Russia or the USSR before 1926 or so has been corrected by 626 a few seconds in the following zones: Asia/Irkutsk, 627 Asia/Krasnoyarsk, Asia/Omsk, Asia/Samarkand, Asia/Tbilisi, 628 Asia/Vladivostok, Asia/Yakutsk, Europe/Riga, Europe/Samara. For 629 Asia/Yekaterinburg the correction is a few minutes. (Thanks to 630 Vladimir Karpinsky.) 631 632 The Portuguese decree of 1911-05-26 took effect on 1912-01-01. 633 This affects 1911 time stamps in Africa/Bissau, Africa/Luanda, 634 Atlantic/Azores, and Atlantic/Madeira. Also, Lisbon's pre-1912 635 GMT offset was -0:36:45 (rounded from -0:36:44.68), not -0:36:32. 636 (Thanks to Stephen Colebourne for pointing to the decree.) 637 638 Asia/Dhaka ended DST on 2009-12-31 at 24:00, not 23:59. 639 640 A new file 'backzone' contains data which may appeal to 641 connoisseurs of old time stamps, although it is out of scope for 642 the tz database, is often poorly sourced, and contains some data 643 that is known to be incorrect. The new file is not recommended 644 for ordinary use and its entries are not installed by default. 645 (Thanks to Lester Caine for the high-quality Jersey, Guernsey, and 646 Isle of Man entries.) 647 648 Some more zones have been turned into links, when they differed 649 from existing zones only for older time stamps. As usual, 650 these changes affect UTC offsets in pre-1970 time stamps only. 651 Their old contents have been moved to the 'backzone' file. 652 The affected zones are: Africa/Bangui, Africa/Brazzaville, 653 Africa/Douala, Africa/Kinshasa, Africa/Libreville, Africa/Luanda, 654 Africa/Malabo, Africa/Niamey, and Africa/Porto-Novo. 655 656 Changes affecting code 657 658 Unless NETBSD_INSPIRED is defined to 0, the tz library now 659 supplies functions for creating and using objects that represent 660 time zones. The new functions are tzalloc, tzfree, localtime_rz, 661 mktime_z, and (if STD_INSPIRED is also defined) posix2time_z and 662 time2posix_z. They are intended for performance: for example, 663 localtime_rz (unlike localtime_r) is trivially thread-safe without 664 locking. (Thanks to Christos Zoulas for proposing NetBSD-inspired 665 functions, and to Alan Barrett and Jonathan Lennox for helping to 666 debug the change.) 667 668 zdump now builds with the tz library unless USE_LTZ is defined to 0, 669 This lets zdump use tz features even if the system library lacks them. 670 To build zdump with the system library, use 'make CFLAGS=-DUSE_LTZ=0 671 TZDOBJS=zdump.o CHECK_TIME_T_ALTERNATIVES='. 672 673 zdump now uses localtime_rz if available, as it's significantly faster, 674 and it can help zdump better diagnose invalid time zone names. 675 Define HAVE_LOCALTIME_RZ to 0 to suppress this. HAVE_LOCALTIME_RZ 676 defaults to 1 if NETBSD_INSPIRED && USE_LTZ. When localtime_rz is 677 not available, zdump now uses localtime_r and tzset if available, 678 as this is a bit cleaner and faster than plain localtime. Compile 679 with -DHAVE_LOCALTIME_R=0 and/or -DHAVE_TZSET=0 if your system 680 lacks these two functions. 681 682 If THREAD_SAFE is defined to 1, the tz library is now thread-safe. 683 Although not needed for tz's own applications, which are single-threaded, 684 this supports POSIX better if the tz library is used in multithreaded apps. 685 686 Some crashes have been fixed when zdump or the tz library is given 687 invalid or outlandish input. 688 689 The tz library no longer mishandles leap seconds on platforms with 690 unsigned time_t in time zones that lack ordinary transitions after 1970. 691 692 The tz code now attempts to infer TM_GMTOFF and TM_ZONE if not 693 already defined, to make it easier to configure on common platforms. 694 Define NO_TM_GMTOFF and NO_TM_ZONE to suppress this. 695 696 Unless the new macro UNINIT_TRAP is defined to 1, the tz code now 697 assumes that reading uninitialized memory yields garbage values 698 but does not cause other problems such as traps. 699 700 If TM_GMTOFF is defined and UNINIT_TRAP is 0, mktime is now 701 more likely to guess right for ambiguous time stamps near 702 transitions where tm_isdst does not change. 703 704 If HAVE_STRFTIME_L is defined to 1, the tz library now defines 705 strftime_l for compatibility with recent versions of POSIX. 706 Only the C locale is supported, though. HAVE_STRFTIME_L defaults 707 to 1 on recent POSIX versions, and to 0 otherwise. 708 709 tzselect -c now uses a hybrid distance measure that works better 710 in Africa. (Thanks to Alan Barrett for noting the problem.) 711 712 The C source code now ports to NetBSD when GCC_DEBUG_FLAGS is used, 713 or when time_tz is defined. 714 715 When HAVE_UTMPX_H is set the 'date' command now builds on systems 716 whose <utmpx.h> file does not define WTMPX_FILE, and when setting 717 the date it updates the wtmpx file if _PATH_WTMPX is defined. 718 This affects GNU/Linux and similar systems. 719 720 For easier maintenance later, some C code has been simplified, 721 some lint has been removed, and the code has been tweaked so that 722 plain 'make' is more likely to work. 723 724 The C type 'bool' is now used for boolean values, instead of 'int'. 725 726 The long-obsolete LOCALE_HOME code has been removed. 727 728 The long-obsolete 'gtime' function has been removed. 729 730 Changes affecting build procedure 731 732 'zdump' no longer links in ialloc.o, as it's not needed. 733 734 'make check_time_t_alternatives' no longer assumes GNU diff. 735 736 Changes affecting distribution tarballs 737 738 The files checktab.awk and zoneinfo2tdf.pl are now distributed in 739 the tzdata tarball instead of the tzcode tarball, since they help 740 maintain the data. The NEWS and Theory files are now also 741 distributed in the tzdata tarball, as they're relevant for data. 742 (Thanks to Alan Barrett for pointing this out.) Also, the 743 leapseconds.awk file is no longer distributed in the tzcode 744 tarball, since it belongs in the tzdata tarball (where 2014f 745 inadvertently also distributed it). 746 747 Changes affecting documentation and commentary 748 749 A new file CONTRIBUTING is distributed. (Thanks to Tim Parenti for 750 suggesting a CONTRIBUTING file, and to Tony Finch and Walter Harms 751 for debugging it.) 752 753 The man pages have been updated to use function prototypes, 754 to document thread-safe variants like localtime_r, and to document 755 the NetBSD-inspired functions tzalloc, tzfree, localtime_rz, and 756 mktime_z. 757 758 The fields in Link lines have been renamed to be more descriptive 759 and more like the parameters of 'ln'. LINK-FROM has become TARGET, 760 and LINK-TO has become LINK-NAME. 761 762 tz-link.htm mentions the IETF's tzdist working group; Windows 763 Runtime etc. (thanks to Matt Johnson); and HP-UX's tztab. 764 765 Some broken URLs have been fixed in the commentary. (Thanks to 766 Lester Caine.) 767 768 Commentary about Philippines DST has been updated, and commentary 769 on pre-1970 time in India has been added. 770 771 772Release 2014f - 2014-08-05 17:42:36 -0700 773 774 Changes affecting future time stamps 775 776 Russia will subtract an hour from most of its time zones on 2014-10-26 777 at 02:00 local time. (Thanks to Alexander Krivenyshev.) 778 There are a few exceptions: Magadan Oblast (Asia/Magadan) and Zabaykalsky 779 Krai are subtracting two hours; conversely, Chukotka Autonomous Okrug 780 (Asia/Anadyr), Kamchatka Krai (Asia/Kamchatka), Kemerovo Oblast 781 (Asia/Novokuznetsk), and the Samara Oblast and the Udmurt Republic 782 (Europe/Samara) are not changing their clocks. The changed zones are 783 Europe/Kaliningrad, Europe/Moscow, Europe/Simferopol, Europe/Volgograd, 784 Asia/Yekaterinburg, Asia/Omsk, Asia/Novosibirsk, Asia/Krasnoyarsk, 785 Asia/Irkutsk, Asia/Yakutsk, Asia/Vladivostok, Asia/Khandyga, 786 Asia/Sakhalin, and Asia/Ust-Nera; Asia/Magadan will have two hours 787 subtracted; and Asia/Novokuznetsk's time zone abbreviation is affected, 788 but not its UTC offset. Two zones are added: Asia/Chita (split 789 from Asia/Yakutsk, and also with two hours subtracted) and 790 Asia/Srednekolymsk (split from Asia/Magadan, but with only one hour 791 subtracted). (Thanks to Tim Parenti for much of the above.) 792 793 Changes affecting time zone abbreviations 794 795 Australian eastern time zone abbreviations are now AEST/AEDT not EST, 796 and similarly for the other Australian zones. That is, for eastern 797 standard and daylight saving time the abbreviations are AEST and AEDT 798 instead of the former EST for both; similarly, ACST/ACDT, ACWST/ACWDT, 799 and AWST/AWDT are now used instead of the former CST, CWST, and WST. 800 This change does not affect UTC offsets, only time zone abbreviations. 801 (Thanks to Rich Tibbett and many others.) 802 803 Asia/Novokuznetsk shifts from NOVT to KRAT (remaining on UTC+7) 804 effective 2014-10-26 at 02:00 local time. 805 806 The time zone abbreviation for Xinjiang Time (observed in Ürümqi) 807 has been changed from URUT to XJT. (Thanks to Luther Ma.) 808 809 Prefer MSK/MSD for Moscow time in Russia, even in other cities. 810 Similarly, prefer EET/EEST for eastern European time in Russia. 811 812 Change time zone abbreviations in (western) Samoa to use "ST" and 813 "DT" suffixes, as this is more likely to match common practice. 814 Prefix "W" to (western) Samoa time when its standard-time offset 815 disagrees with that of American Samoa. 816 817 America/Metlakatla now uses PST, not MeST, to abbreviate its time zone. 818 819 Time zone abbreviations have been updated for Japan's two time 820 zones used 1896-1937. JWST now stands for Western Standard 821 Time, and JCST for Central Standard Time (formerly this was CJT). 822 These abbreviations are now used for time in Korea, Taiwan, 823 and Sakhalin while controlled by Japan. 824 825 Changes affecting past time stamps 826 827 China's five zones have been simplified to two, since the post-1970 828 differences in the other three seem to have been imaginary. The 829 zones Asia/Harbin, Asia/Chongqing, and Asia/Kashgar have been 830 removed; backwards-compatibility links still work, albeit with 831 different behaviors for time stamps before May 1980. Asia/Urumqi's 832 1980 transition to UTC+8 has been removed, so that it is now at 833 UTC+6 and not UTC+8. (Thanks to Luther Ma and to Alois Treindl; 834 Treindl sent helpful translations of two papers by Guo Qingsheng.) 835 836 Some zones have been turned into links, when they differed from existing 837 zones only for older UTC offsets where data entries were likely invented. 838 These changes affect UTC offsets in pre-1970 time stamps only. This is 839 similar to the change in release 2013e, except this time for western 840 Africa. The affected zones are: Africa/Bamako, Africa/Banjul, 841 Africa/Conakry, Africa/Dakar, Africa/Freetown, Africa/Lome, 842 Africa/Nouakchott, Africa/Ouagadougou, Africa/Sao_Tome, and 843 Atlantic/St_Helena. This also affects the backwards-compatibility 844 link Africa/Timbuktu. (Thanks to Alan Barrett, Stephen Colebourne, 845 Tim Parenti, and David Patte for reporting problems in earlier 846 versions of this change.) 847 848 Asia/Shanghai's pre-standard-time UT offset has been changed from 849 8:05:57 to 8:05:43, the location of Xujiahui Observatory. Its 850 transition to standard time has been changed from 1928 to 1901. 851 852 Asia/Taipei switched to JWST on 1896-01-01, then to JST on 1937-10-01, 853 then to CST on 1945-09-21 at 01:00, and did not observe DST in 1945. 854 In 1946 it observed DST from 05-15 through 09-30; in 1947 855 from 04-15 through 10-31; and in 1979 from 07-01 through 09-30. 856 (Thanks to Yu-Cheng Chuang.) 857 858 Asia/Riyadh's transition to standard time is now 1947-03-14, not 1950. 859 860 Europe/Helsinki's 1942 fall-back transition was 10-04 at 01:00, not 861 10-03 at 00:00. (Thanks to Konstantin Hyppönen.) 862 863 Pacific/Pago_Pago has been changed from UTC-11:30 to UTC-11 for the period 864 from 1911 to 1950. 865 866 Pacific/Chatham has been changed to New Zealand standard time plus 867 45 minutes for the period before 1957, reflecting a 1956 remark in 868 the New Zealand parliament. 869 870 Europe/Budapest has several pre-1946 corrections: in 1918 the transition 871 out of DST was on 09-16, not 09-29; in 1919 it was on 11-24, not 09-15; in 872 1945 it was on 11-01, not 11-03; in 1941 the transition to DST was 04-08 873 not 04-06 at 02:00; and there was no DST in 1920. 874 875 Africa/Accra is now assumed to have observed DST from 1920 through 1935. 876 877 Time in Russia before 1927 or so has been corrected by a few seconds in 878 the following zones: Europe/Moscow, Asia/Irkutsk, Asia/Tbilisi, 879 Asia/Tashkent, Asia/Vladivostok, Asia/Yekaterinburg, Europe/Helsinki, and 880 Europe/Riga. Also, Moscow's location has been changed to its Kilometer 0 881 point. (Thanks to Vladimir Karpinsky for the Moscow changes.) 882 883 Changes affecting data format 884 885 A new file 'zone1970.tab' supersedes 'zone.tab' in the installed data. 886 The new file's extended format allows multiple country codes per zone. 887 The older file is still installed but is deprecated; its format is 888 not changing and it will still be distributed for a while, but new 889 applications should use the new file. 890 891 The new file format simplifies maintenance of obscure locations. 892 To test this, it adds coverage for the Crozet Islands and the 893 Scattered Islands. (Thanks to Tobias Conradi and Antoine Leca.) 894 895 The file 'iso3166.tab' is planned to switch from ASCII to UTF-8. 896 It is still ASCII now, but commentary about the switch has been added. 897 The new file 'zone1970.tab' already uses UTF-8. 898 899 Changes affecting code 900 901 'localtime', 'mktime', etc. now use much less stack space if ALL_STATE 902 is defined. (Thanks to Elliott Hughes for reporting the problem.) 903 904 'zic' no longer mishandles input when ignoring case in locales that 905 are not compatible with English, e.g., unibyte Turkish locales when 906 compiled with HAVE_GETTEXT. 907 908 Error diagnostics of 'zic' and 'yearistype' have been reworded so that 909 they no longer use ASCII '-' as if it were a dash. 910 911 'zic' now rejects output file names that contain '.' or '..' components. 912 (Thanks to Tim Parenti for reporting the problem.) 913 914 'zic -v' now warns about output file names that do not follow 915 POSIX rules, or that contain a digit or '.'. (Thanks to Arthur 916 David Olson for starting the ball rolling on this.) 917 918 Some lint has been removed when using GCC_DEBUG_FLAGS with GCC 4.9.0. 919 920 Changes affecting build procedure 921 922 'zic' no longer links in localtime.o and asctime.o, as they're not needed. 923 (Thanks to John Cochran.) 924 925 Changes affecting documentation and commentary 926 927 The 'Theory' file documents legacy names, the longstanding 928 exceptions to the POSIX-inspired file name rules. 929 930 The 'zic' documentation clarifies the role of time types when 931 interpreting dates. (Thanks to Arthur David Olson.) 932 933 Documentation and commentary now prefer UTF-8 to US-ASCII, 934 allowing the use of proper accents in foreign words and names. 935 Code and data have not changed because of this. (Thanks to 936 Garrett Wollman, Ian Abbott, and Guy Harris for helping to debug 937 this.) 938 939 Non-HTML documentation and commentary now use plain-text URLs instead of 940 HTML insertions, and are more consistent about bracketing URLs when they 941 are not already surrounded by white space. (Thanks to suggestions by 942 Steffen Nurpmeso.) 943 944 There is new commentary about Xujiahui Observatory, the five time-zone 945 project in China from 1918 to 1949, timekeeping in Japanese-occupied 946 Shanghai, and Tibet Time in the 1950s. The sharp-eyed can spot the 947 warlord Jin Shuren in the data. 948 949 Commentary about the coverage of each Russian zone has been standardized. 950 (Thanks to Tim Parenti). 951 952 There is new commentary about contemporary timekeeping in Ethiopia. 953 954 Obsolete comments about a 2007 proposal for DST in Kuwait has been removed. 955 956 There is new commentary about time in Poland in 1919. 957 958 Proper credit has been given to DST inventor George Vernon Hudson. 959 960 Commentary about time in Metlakatla, AK and Resolute, NU has been 961 improved, with a new source for the former. 962 963 In zone.tab, Pacific/Easter no longer mentions Salas y Gómez, as it 964 is uninhabited. 965 966 Commentary about permanent Antarctic bases has been updated. 967 968 Several typos have been corrected. (Thanks to Tim Parenti for 969 contributing some of these fixes.) 970 971 tz-link.htm now mentions the JavaScript libraries Moment Timezone, 972 TimezoneJS.Date, Walltime-js, and Timezone. (Thanks to a heads-up 973 from Matt Johnson.) Also, it mentions the Go 'latlong' package. 974 (Thanks to a heads-up from Dirkjan Ochtman.) 975 976 The files usno1988, usno1989, usno1989a, usno1995, usno1997, and usno1998 977 have been removed. These obsolescent US Naval Observatory entries were no 978 longer helpful for maintenance. (Thanks to Tim Parenti for the suggestion.) 979 980 981Release 2014e - 2014-06-12 21:53:52 -0700 982 983 Changes affecting near-future time stamps 984 985 Egypt's 2014 Ramadan-based transitions are June 26 and July 31 at 24:00. 986 (Thanks to Imed Chihi.) Guess that from 2015 on Egypt will temporarily 987 switch to standard time at 24:00 the last Thursday before Ramadan, and 988 back to DST at 00:00 the first Friday after Ramadan. 989 990 Similarly, Morocco's are June 28 at 03:00 and August 2 at 02:00. (Thanks 991 to Milamber Space Network.) Guess that from 2015 on Morocco will 992 temporarily switch to standard time at 03:00 the last Saturday before 993 Ramadan, and back to DST at 02:00 the first Saturday after Ramadan. 994 995 Changes affecting past time stamps 996 997 The abbreviation "MSM" (Moscow Midsummer Time) is now used instead of 998 "MSD" for Moscow's double daylight time in summer 1921. Also, a typo 999 "VLASST" has been repaired to be "VLAST" for Vladivostok summer time 1000 in 1991. (Thanks to Hank W. for reporting the problems.) 1001 1002 Changes affecting commentary 1003 1004 tz-link.htm now cites RFC 7265 for jCal, mentions PTP and the 1005 draft CalDAV extension, updates URLs for TSP, TZInfo, IATA, and 1006 removes stale pointers to World Time Explorer and WORLDTIME. 1007 1008 1009Release 2014d - 2014-05-27 21:34:40 -0700 1010 1011 Changes affecting code 1012 1013 zic no longer generates files containing time stamps before the Big Bang. 1014 This works around GNOME bug 730332 1015 <https://bugzilla.gnome.org/show_bug.cgi?id=730332>. 1016 (Thanks to Leonardo Chiquitto for reporting the bug, and to 1017 Arthur David Olson and James Cloos for suggesting improvements to the fix.) 1018 1019 Changes affecting documentation 1020 1021 tz-link.htm now mentions GNOME. 1022 1023 1024Release 2014c - 2014-05-13 07:44:13 -0700 1025 1026 Changes affecting near-future time stamps 1027 1028 Egypt observes DST starting 2014-05-15 at 24:00. 1029 (Thanks to Ahmad El-Dardiry and Gunther Vermier.) 1030 Details have not been announced, except that DST will not be observed 1031 during Ramadan. Guess that DST will stop during the same Ramadan dates as 1032 Morocco, and that Egypt's future spring and fall transitions will be the 1033 same as 2010 when it last observed DST, namely April's last Friday at 1034 00:00 to September's last Thursday at 23:00 standard time. Also, guess 1035 that Ramadan transitions will be at 00:00 standard time. 1036 1037 Changes affecting code 1038 1039 zic now generates transitions for minimum time values, eliminating guesswork 1040 when handling low-valued time stamps. (Thanks to Arthur David Olson.) 1041 1042 Port to Cygwin sans glibc. (Thanks to Arthur David Olson.) 1043 1044 Changes affecting commentary and documentation 1045 1046 Remove now-confusing comment about Jordan. (Thanks to Oleksii Nochovnyi.) 1047 1048 1049Release 2014b - 2014-03-24 21:28:50 -0700 1050 1051 Changes affecting near-future time stamps 1052 1053 Crimea switches to Moscow time on 2014-03-30 at 02:00 local time. 1054 (Thanks to Alexander Krivenyshev.) Move its zone.tab entry from UA to RU. 1055 1056 New entry for Troll station, Antarctica. (Thanks to Paul-Inge Flakstad and 1057 Bengt-Inge Larsson.) This is currently an approximation; a better version 1058 will require the zic and localtime fixes mentioned below, and the plan is 1059 to wait for a while until at least the zic fixes propagate. 1060 1061 Changes affecting code 1062 1063 'zic' and 'localtime' no longer reject locations needing four transitions 1064 per year for the foreseeable future. (Thanks to Andrew Main (Zefram).) 1065 Also, 'zic' avoids some unlikely failures due to integer overflow. 1066 1067 Changes affecting build procedure 1068 1069 'make check' now detects Rule lines defined but never used. 1070 The NZAQ rules, an instance of this problem, have been removed. 1071 1072 Changes affecting commentary and documentation 1073 1074 Fix Tuesday/Thursday typo in description of time in Israel. 1075 (Thanks to Bert Katz via Pavel Kharitonov and Mike Frysinger.) 1076 1077 Microsoft Windows 8.1 doesn't support tz database names. (Thanks 1078 to Donald MacQueen.) Instead, the Microsoft Windows Store app 1079 library supports them. 1080 1081 Add comments about Johnston Island time in the 1960s. 1082 (Thanks to Lyle McElhaney.) 1083 1084 Morocco's 2014 DST start will be as predicted. 1085 (Thanks to Sebastien Willemijns.) 1086 1087 1088Release 2014a - 2014-03-07 23:30:29 -0800 1089 1090 Changes affecting near-future time stamps 1091 1092 Turkey begins DST on 2014-03-31, not 03-30. (Thanks to Faruk Pasin for 1093 the heads-up, and to Tim Parenti for simplifying the update.) 1094 1095 Changes affecting past time stamps 1096 1097 Fiji ended DST on 2014-01-19 at 02:00, not the previously-scheduled 03:00. 1098 (Thanks to Steffen Thorsen.) 1099 1100 Ukraine switched from Moscow to Eastern European time on 1990-07-01 1101 (not 1992-01-01), and observed DST during the entire next winter. 1102 (Thanks to Vladimir in Moscow via Alois Treindl.) 1103 1104 In 1988 Israel observed DST from 04-10 to 09-04, not 04-09 to 09-03. 1105 (Thanks to Avigdor Finkelstein.) 1106 1107 Changes affecting code 1108 1109 A uninitialized-storage bug in 'localtime' has been fixed. 1110 (Thanks to Logan Chien.) 1111 1112 Changes affecting the build procedure 1113 1114 The settings for 'make check_web' now default to Ubuntu 13.10. 1115 1116 Changes affecting commentary and documentation 1117 1118 The boundary of the US Pacific time zone is given more accurately. 1119 (Thanks to Alan Mintz.) 1120 1121 Chile's 2014 DST will be as predicted. (Thanks to José Miguel Garrido.) 1122 1123 Paraguay's 2014 DST will be as predicted. (Thanks to Carlos Raúl Perasso.) 1124 1125 Better descriptions of countries with same time zone history as 1126 Trinidad and Tobago since 1970. (Thanks to Alan Barrett for suggestion.) 1127 1128 Several changes affect tz-link.htm, the main web page. 1129 1130 Mention Time.is (thanks to Even Scharning) and WX-now (thanks to 1131 David Braverman). 1132 1133 Mention xCal (Internet RFC 6321) and jCal. 1134 1135 Microsoft has some support for tz database names. 1136 1137 CLDR data formats include both XML and JSON. 1138 1139 Mention Maggiolo's map of solar vs standard time. 1140 (Thanks to Arthur David Olson.) 1141 1142 Mention TZ4Net. (Thanks to Matt Johnson.) 1143 1144 Mention the timezone-olson Haskell package. 1145 1146 Mention zeitverschiebung.net. (Thanks to Martin Jäger.) 1147 1148 Remove moribund links to daylight-savings-time.info and to 1149 Simple Timer + Clocks. 1150 1151 Update two links. (Thanks to Oscar van Vlijmen.) 1152 1153 Fix some formatting glitches, e.g., remove random newlines from 1154 abbr elements' title attributes. 1155 1156 1157Release 2013i - 2013-12-17 07:25:23 -0800 1158 1159 Changes affecting near-future time stamps: 1160 1161 Jordan switches back to standard time at 00:00 on December 20, 2013. 1162 The 2006-2011 transition schedule is planned to resume in 2014. 1163 (Thanks to Steffen Thorsen.) 1164 1165 Changes affecting past time stamps: 1166 1167 In 2004, Cuba began DST on March 28, not April 4. 1168 (Thanks to Steffen Thorsen.) 1169 1170 Changes affecting code 1171 1172 The compile-time flag NOSOLAR has been removed, as nowadays the 1173 benefit of slightly shrinking runtime table size is outweighed by the 1174 cost of disallowing potential future updates that exceed old limits. 1175 1176 Changes affecting documentation and commentary 1177 1178 The files solar87, solar88, and solar89 are no longer distributed. 1179 They were a negative experiment - that is, a demonstration that 1180 tz data can represent solar time only with some difficulty and error. 1181 Their presence in the distribution caused confusion, as Riyadh 1182 civil time was generally not solar time in those years. 1183 1184 tz-link.htm now mentions Noda Time. (Thanks to Matt Johnson.) 1185 1186 1187Release 2013h - 2013-10-25 15:32:32 -0700 1188 1189 Changes affecting current and future time stamps: 1190 1191 Libya has switched its time zone back to UTC+2 without DST, 1192 instead of UTC+1 with DST. (Thanks to Even Scharning.) 1193 1194 Western Sahara (Africa/El_Aaiun) uses Morocco's DST rules. 1195 (Thanks to Gwillim Law.) 1196 1197 Changes affecting future time stamps: 1198 1199 Acre and (we guess) western Amazonas will switch from UTC-4 to UTC-5 1200 on 2013-11-10. This affects America/Rio_Branco and America/Eirunepe. 1201 (Thanks to Steffen Thorsen.) 1202 1203 Add entries for DST transitions in Morocco in the year 2038. 1204 This avoids some year-2038 glitches introduced in 2013g. 1205 (Thanks to Yoshito Umaoka for reporting the problem.) 1206 1207 Changes affecting API 1208 1209 The 'tzselect' command no longer requires the 'select' command, 1210 and should now work with /bin/sh on more platforms. It also works 1211 around a bug in BusyBox awk before version 1.21.0. (Thanks to 1212 Patrick 'P. J.' McDermott and Alan Barrett.) 1213 1214 Changes affecting code 1215 1216 Fix localtime overflow bugs with 32-bit unsigned time_t. 1217 1218 zdump no longer assumes sscanf returns maximal values on overflow. 1219 1220 Changes affecting the build procedure 1221 1222 The builder can specify which programs to use, if any, instead of 1223 'ar' and 'ranlib', and libtz.a is now built locally before being 1224 installed. (Thanks to Michael Forney.) 1225 1226 A dependency typo in the 'zdump' rule has been fixed. 1227 (Thanks to Andrew Paprocki.) 1228 1229 The Makefile has been simplified by assuming that 'mkdir -p' and 'cp -f' 1230 work as specified by POSIX.2-1992 or later; this is portable nowadays. 1231 1232 'make clean' no longer removes 'leapseconds', since it's 1233 host-independent and is part of the distribution. 1234 1235 The unused makefile macros TZCSRCS, TZDSRCS, DATESRCS have been removed. 1236 1237 Changes affecting documentation and commentary 1238 1239 tz-link.htm now mentions TC TIMEZONE's draft time zone service protocol 1240 (thanks to Mike Douglass) and TimezoneJS.Date (thanks to Jim Fehrle). 1241 1242 Update URLs in tz-link page. Add URLs for Microsoft Windows, since 1243 8.1 introduces tz support. Remove URLs for Tru64 and UnixWare (no 1244 longer maintained) and for old advisories. SOFA now does C. 1245 1246Release 2013g - 2013-09-30 21:08:26 -0700 1247 1248 Changes affecting current and near-future time stamps 1249 1250 Morocco now observes DST from the last Sunday in March to the last 1251 Sunday in October, not April to September respectively. (Thanks 1252 to Steffen Thorsen.) 1253 1254 Changes affecting 'zic' 1255 1256 'zic' now runs on platforms that lack both hard links and symlinks. 1257 (Thanks to Theo Veenker for reporting the problem, for MinGW.) 1258 Also, fix some bugs on platforms that lack hard links but have symlinks. 1259 1260 'zic -v' again warns that Asia/Tehran has no POSIX environment variable 1261 to predict the far future, fixing a bug introduced in 2013e. 1262 1263 Changes affecting the build procedure 1264 1265 The 'leapseconds' file is again put into the tzdata tarball. 1266 Also, 'leapseconds.awk', so tzdata is self-contained. (Thanks to 1267 Matt Burgess and Ian Abbott.) The timestamps of these and other 1268 dependent files in tarballs are adjusted more consistently. 1269 1270 Changes affecting documentation and commentary 1271 1272 The README file is now part of the data tarball as well as the code. 1273 It now states that files are public domain unless otherwise specified. 1274 (Thanks to Andrew Main (Zefram) for asking for clarifications.) 1275 Its details about the 1989 release moved to a place of honor near 1276 the end of NEWS. 1277 1278 1279Release 2013f - 2013-09-24 23:37:36 -0700 1280 1281 Changes affecting near-future time stamps 1282 1283 Tocantins will very likely not observe DST starting this spring. 1284 (Thanks to Steffen Thorsen.) 1285 1286 Jordan will likely stay at UTC+3 indefinitely, and will not fall 1287 back this fall. 1288 1289 Palestine will fall back at 00:00, not 01:00. (Thanks to Steffen Thorsen.) 1290 1291 Changes affecting API 1292 1293 The types of the global variables 'timezone' and 'altzone' (if present) 1294 have been changed back to 'long'. This is required for 'timezone' 1295 by POSIX, and for 'altzone' by common practice, e.g., Solaris 11. 1296 These variables were originally 'long' in the tz code, but were 1297 mistakenly changed to 'time_t' in 1987; nobody reported the 1298 incompatibility until now. The difference matters on x32, where 1299 'long' is 32 bits and 'time_t' is 64. (Thanks to Elliott Hughes.) 1300 1301 Changes affecting the build procedure 1302 1303 Avoid long strings in leapseconds.awk to work around a mawk bug. 1304 (Thanks to Cyril Baurand.) 1305 1306 Changes affecting documentation and commentary 1307 1308 New file 'NEWS' that contains release notes like this one. 1309 1310 Paraguay's law does not specify DST transition time; 00:00 is customary. 1311 (Thanks to Waldemar Villamayor-Venialbo.) 1312 1313 Minor capitalization fixes. 1314 1315 Changes affecting version-control only 1316 1317 The experimental GitHub repository now contains annotated and 1318 signed tags for recent releases, e.g., '2013e' for Release 2013e. 1319 Releases are tagged starting with 2012e; earlier releases were 1320 done differently, and tags would either not have a simple name or 1321 not exactly match what was released. 1322 1323 'make set-timestamps' is now simpler and a bit more portable. 1324 1325 1326Release 2013e - 2013-09-19 23:50:04 -0700 1327 1328 Changes affecting near-future time stamps 1329 1330 This year Fiji will start DST on October 27, not October 20. 1331 (Thanks to David Wheeler for the heads-up.) For now, guess that 1332 Fiji will continue to spring forward the Sunday before the fourth 1333 Monday in October. 1334 1335 Changes affecting current and future time zone abbreviations 1336 1337 Use WIB/WITA/WIT rather than WIT/CIT/EIT for alphabetic Indonesian 1338 time zone abbreviations since 1932. (Thanks to George Ziegler, 1339 Priyadi Iman Nurcahyo, Zakaria, Jason Grimes, Martin Pitt, and 1340 Benny Lin.) This affects Asia/Dili, Asia/Jakarta, Asia/Jayapura, 1341 Asia/Makassar, and Asia/Pontianak. 1342 1343 Use ART (UTC-3, standard time), rather than WARST (also UTC-3, but 1344 daylight saving time) for San Luis, Argentina since 2009. 1345 1346 Changes affecting Godthåb time stamps after 2037 if version mismatch 1347 1348 Allow POSIX-like TZ strings where the transition time's hour can 1349 range from -167 through 167, instead of the POSIX-required 0 1350 through 24. E.g., TZ='FJT-12FJST,M10.3.1/146,M1.3.4/75' for the 1351 new Fiji rules. This is a more-compact way to represent 1352 far-future time stamps for America/Godthab, America/Santiago, 1353 Antarctica/Palmer, Asia/Gaza, Asia/Hebron, Asia/Jerusalem, 1354 Pacific/Easter, and Pacific/Fiji. Other zones are unaffected by 1355 this change. (Derived from a suggestion by Arthur David Olson.) 1356 1357 Allow POSIX-like TZ strings where daylight saving time is in 1358 effect all year. E.g., TZ='WART4WARST,J1/0,J365/25' for Western 1359 Argentina Summer Time all year. This supports a more-compact way 1360 to represent the 2013d data for America/Argentina/San_Luis. 1361 Because of the change for San Luis noted above this change does not 1362 affect the current data. (Thanks to Andrew Main (Zefram) for 1363 suggestions that improved this change.) 1364 1365 Where these two TZ changes take effect, there is a minor extension 1366 to the tz file format in that it allows new values for the 1367 embedded TZ-format string, and the tz file format version number 1368 has therefore been increased from 2 to 3 as a precaution. 1369 Version-2-based client code should continue to work as before for 1370 all time stamps before 2038. Existing version-2-based client code 1371 (tzcode, GNU/Linux, Solaris) has been tested on version-3-format 1372 files, and typically works in practice even for time stamps after 1373 2037; the only known exception is America/Godthab. 1374 1375 Changes affecting time stamps before 1970 1376 1377 Pacific/Johnston is now a link to Pacific/Honolulu. This corrects 1378 some errors before 1947. 1379 1380 Some zones have been turned into links, when they differ from existing 1381 zones only in older data entries that were likely invented or that 1382 differ only in LMT or transitions from LMT. These changes affect 1383 only time stamps before 1943. The affected zones are: 1384 Africa/Juba, America/Anguilla, America/Aruba, America/Dominica, 1385 America/Grenada, America/Guadeloupe, America/Marigot, 1386 America/Montserrat, America/St_Barthelemy, America/St_Kitts, 1387 America/St_Lucia, America/St_Thomas, America/St_Vincent, 1388 America/Tortola, and Europe/Vaduz. (Thanks to Alois Treindl for 1389 confirming that the old Europe/Vaduz zone was wrong and the new 1390 link is better for WWII-era times.) 1391 1392 Change Kingston Mean Time from -5:07:12 to -5:07:11. This affects 1393 America/Cayman, America/Jamaica and America/Grand_Turk time stamps 1394 from 1890 to 1912. 1395 1396 Change the UT offset of Bern Mean Time from 0:29:44 to 0:29:46. 1397 This affects Europe/Zurich time stamps from 1853 to 1894. (Thanks 1398 to Alois Treindl). 1399 1400 Change the date of the circa-1850 Zurich transition from 1849-09-12 1401 to 1853-07-16, overriding Shanks with data from Messerli about 1402 postal and telegraph time in Switzerland. 1403 1404 Changes affecting time zone abbreviations before 1970 1405 1406 For Asia/Jakarta, use BMT (not JMT) for mean time from 1923 to 1932, 1407 as Jakarta was called Batavia back then. 1408 1409 Changes affecting API 1410 1411 The 'zic' command now outputs a dummy transition when far-future 1412 data can't be summarized using a TZ string, and uses a 402-year 1413 window rather than a 400-year window. For the current data, this 1414 affects only the Asia/Tehran file. It does not affect any of the 1415 time stamps that this file represents, so zdump outputs the same 1416 information as before. (Thanks to Andrew Main (Zefram).) 1417 1418 The 'date' command has a new '-r' option, which lets you specify 1419 the integer time to display, a la FreeBSD. 1420 1421 The 'tzselect' command has two new options '-c' and '-n', which lets you 1422 select a zone based on latitude and longitude. 1423 1424 The 'zic' command's '-v' option now warns about constructs that 1425 require the new version-3 binary file format. (Thanks to Arthur 1426 David Olson for the suggestion.) 1427 1428 Support for floating-point time_t has been removed. 1429 It was always dicey, and POSIX no longer requires it. 1430 (Thanks to Eric Blake for suggesting to the POSIX committee to 1431 remove it, and thanks to Alan Barrett, Clive D.W. Feather, Andy 1432 Heninger, Arthur David Olson, and Alois Treindl, for reporting 1433 bugs and elucidating some of the corners of the old floating-point 1434 implementation.) 1435 1436 The signatures of 'offtime', 'timeoff', and 'gtime' have been 1437 changed back to the old practice of using 'long' to represent UT 1438 offsets. This had been inadvertently and mistakenly changed to 1439 'int_fast32_t'. (Thanks to Christos Zoulas.) 1440 1441 The code avoids undefined behavior on integer overflow in some 1442 more places, including gmtime, localtime, mktime and zdump. 1443 1444 Changes affecting the zdump utility 1445 1446 zdump now outputs "UT" when referring to Universal Time, not "UTC". 1447 "UTC" does not make sense for time stamps that predate the introduction 1448 of UTC, whereas "UT", a more-generic term, does. (Thanks to Steve Allen 1449 for clarifying UT vs UTC.) 1450 1451 Data changes affecting behavior of tzselect and similar programs 1452 1453 Country code BQ is now called the more-common name "Caribbean Netherlands" 1454 rather than the more-official "Bonaire, St Eustatius & Saba". 1455 1456 Remove from zone.tab the names America/Montreal, America/Shiprock, 1457 and Antarctica/South_Pole, as they are equivalent to existing 1458 same-country-code zones for post-1970 time stamps. The data entries for 1459 these names are unchanged, so the names continue to work as before. 1460 1461 Changes affecting code internals 1462 1463 zic -c now runs way faster on 64-bit hosts when given large numbers. 1464 1465 zic now uses vfprintf to avoid allocating and freeing some memory. 1466 1467 tzselect now computes the list of continents from the data, 1468 rather than have it hard-coded. 1469 1470 Minor changes pacify GCC 4.7.3 and GCC 4.8.1. 1471 1472 Changes affecting the build procedure 1473 1474 The 'leapseconds' file is now generated automatically from a 1475 new file 'leap-seconds.list', which is a copy of 1476 <ftp://time.nist.gov/pub/leap-seconds.list>. 1477 A new source file 'leapseconds.awk' implements this. 1478 The goal is simplification of the future maintenance of 'leapseconds'. 1479 1480 When building the 'posix' or 'right' subdirectories, if the 1481 subdirectory would be a copy of the default subdirectory, it is 1482 now made a symbolic link if that is supported. This saves about 1483 2 MB of file system space. 1484 1485 The links America/Shiprock and Antarctica/South_Pole have been 1486 moved to the 'backward' file. This affects only nondefault builds 1487 that omit 'backward'. 1488 1489 Changes affecting version-control only 1490 1491 .gitignore now ignores 'date'. 1492 1493 Changes affecting documentation and commentary 1494 1495 Changes to the 'tzfile' man page 1496 1497 It now mentions that the binary file format may be extended in 1498 future versions by appending data. 1499 1500 It now refers to the 'zdump' and 'zic' man pages. 1501 1502 Changes to the 'zic' man page 1503 1504 It lists conditions that elicit a warning with '-v'. 1505 1506 It says that the behavior is unspecified when duplicate names 1507 are given, or if the source of one link is the target of another. 1508 1509 Its examples are updated to match the latest data. 1510 1511 The definition of white space has been clarified slightly. 1512 (Thanks to Michael Deckers.) 1513 1514 Changes to the 'Theory' file 1515 1516 There is a new section about the accuracy of the tz database, 1517 describing the many ways that errors can creep in, and 1518 explaining why so many of the pre-1970 time stamps are wrong or 1519 misleading (thanks to Steve Allen, Lester Caine, and Garrett 1520 Wollman for discussions that contributed to this). 1521 1522 The 'Theory' file describes LMT better (this follows a 1523 suggestion by Guy Harris). 1524 1525 It refers to the 2013 edition of POSIX rather than the 2004 edition. 1526 1527 It's mentioned that excluding 'backward' should not affect the 1528 other data, and it suggests at least one zone.tab name per 1529 inhabited country (thanks to Stephen Colebourne). 1530 1531 Some longstanding restrictions on names are documented, e.g., 1532 'America/New_York' precludes 'America/New_York/Bronx'. 1533 1534 It gives more reasons for the 1970 cutoff. 1535 1536 It now mentions which time_t variants are supported, such as 1537 signed integer time_t. (Thanks to Paul Goyette for reporting 1538 typos in an experimental version of this change.) 1539 1540 (Thanks to Philip Newton for correcting typos in these changes.) 1541 1542 Documentation and commentary is more careful to distinguish UT in 1543 general from UTC in particular. (Thanks to Steve Allen.) 1544 1545 Add a better source for the Zurich 1894 transition. 1546 (Thanks to Pierre-Yves Berger.) 1547 1548 Update shapefile citations in tz-link.htm. (Thanks to Guy Harris.) 1549 1550 1551Release 2013d - 2013-07-05 07:38:01 -0700 1552 1553 Changes affecting future time stamps: 1554 1555 Morocco's midsummer transitions this year are July 7 and August 10, 1556 not July 9 and August 8. (Thanks to Andrew Paprocki.) 1557 1558 Israel now falls back on the last Sunday of October. 1559 (Thanks to Ephraim Silverberg.) 1560 1561 Changes affecting past time stamps: 1562 1563 Specify Jerusalem's location more precisely; this changes the pre-1880 1564 times by 2 s. 1565 1566 Changing affecting metadata only: 1567 1568 Fix typos in the entries for country codes BQ and SX. 1569 1570 Changes affecting code: 1571 1572 Rework the code to fix a bug with handling Australia/Macquarie on 1573 32-bit hosts (thanks to Arthur David Olson). 1574 1575 Port to platforms like NetBSD, where time_t can be wider than long. 1576 1577 Add support for testing time_t types other than the system's. 1578 Run 'make check_time_t_alternatives' to try this out. 1579 Currently, the tests fail for unsigned time_t; 1580 this should get fixed at some point. 1581 1582 Changes affecting documentation and commentary: 1583 1584 Deemphasize the significance of national borders. 1585 1586 Update the zdump man page. 1587 1588 Remove obsolete NOID comment (thanks to Denis Excoffier). 1589 1590 Update several URLs and comments in the web pages. 1591 1592 Spelling fixes (thanks to Kevin Lyda and Jonathan Leffler). 1593 1594 Update URL for CLDR Zone->Tzid table (thanks to Yoshito Umaoka). 1595 1596 1597Release 2013c - 2013-04-19 16:17:40 -0700 1598 1599 Changes affecting current and future time stamps: 1600 1601 Palestine observed DST starting March 29, 2013. (Thanks to 1602 Steffen Thorsen.) From 2013 on, Gaza and Hebron both observe DST, 1603 with the predicted rules being the last Thursday in March at 24:00 1604 to the first Friday on or after September 21 at 01:00. 1605 1606 Assume that the recent change to Paraguay's DST rules is permanent, 1607 by moving the end of DST to the 4th Sunday in March every year. 1608 (Thanks to Carlos Raúl Perasso.) 1609 1610 Changes affecting past time stamps: 1611 1612 Fix some historical data for Palestine to agree with that of 1613 timeanddate.com, as follows: 1614 1615 The spring 2008 change in Gaza and Hebron was on 00:00 Mar 28, not 1616 00:00 Apr 1. 1617 1618 The fall 2009 change in Gaza and Hebron on Sep 4 was at 01:00, not 1619 02:00. 1620 1621 The spring 2010 change in Hebron was 00:00 Mar 26, not 00:01 Mar 27. 1622 1623 The spring 2011 change in Gaza was 00:01 Apr 1, not 12:01 Apr 2. 1624 1625 The spring 2011 change in Hebron on Apr 1 was at 00:01, not 12:01. 1626 1627 The fall 2011 change in Hebron on Sep 30 was at 00:00, not 03:00. 1628 1629 Fix times of habitation for Macquarie to agree with the Tasmania 1630 Parks & Wildlife Service history, which indicates that permanent 1631 habitation was 1899-1919 and 1948 on. 1632 1633 Changing affecting metadata only: 1634 1635 Macquarie Island is politically part of Australia, not Antarctica. 1636 (Thanks to Tobias Conradi.) 1637 1638 Sort Macquarie more-consistently with other parts of Australia. 1639 (Thanks to Tim Parenti.) 1640 1641 1642Release 2013b - 2013-03-10 22:33:40 -0700 1643 1644 Changes affecting current and future time stamps: 1645 1646 Haiti uses US daylight-saving rules this year, and presumably future years. 1647 This changes time stamps starting today. (Thanks to Steffen Thorsen.) 1648 1649 Paraguay will end DST on March 24 this year. 1650 (Thanks to Steffen Thorsen.) For now, assume it's just this year. 1651 1652 Morocco does not observe DST during Ramadan; 1653 try to predict Ramadan in Morocco as best we can. 1654 (Thanks to Erik Homoet for the heads-up.) 1655 1656 Changes affecting commentary: 1657 1658 Update URLs in tz-link page. Add URLs for webOS, BB10, iOS. 1659 Update URL for Solaris. Mention Internet RFC 6557. 1660 Update Internet RFCs 2445->5545, 2822->5322. 1661 Switch from FTP to HTTP for Internet RFCs. 1662 1663 1664Release 2013a - 2013-02-27 09:20:35 -0800 1665 1666 Change affecting binary data format: 1667 1668 The zone offset at the end of version-2-format zone files is now 1669 allowed to be 24:00, as per POSIX.1-2008. (Thanks to Arthur David Olson.) 1670 1671 Changes affecting current and future time stamps: 1672 1673 Chile's 2013 rules, and we guess rules for 2014 and later, will be 1674 the same as 2012, namely Apr Sun>=23 03:00 UTC to Sep Sun>=2 04:00 UTC. 1675 (Thanks to Steffen Thorsen and Robert Elz.) 1676 1677 New Zones Asia/Khandyga, Asia/Ust-Nera, Europe/Busingen. 1678 (Thanks to Tobias Conradi and Arthur David Olson.) 1679 1680 Many changes affect historical time stamps before 1940. 1681 These were deduced from: Milne J. Civil time. Geogr J. 1899 1682 Feb;13(2):173-94 <http://www.jstor.org/stable/1774359>. 1683 1684 Changes affecting the code: 1685 1686 Fix zic bug that mishandled Egypt's 2010 changes (this also affected 1687 the data). (Thanks to Arthur David Olson.) 1688 1689 Fix localtime bug when time_t is unsigned and data files were generated 1690 by a signed time_t system. (Thanks to Doug Bailey for reporting and 1691 to Arthur David Olson for fixing.) 1692 1693 Allow the email address for bug reports to be set by the packager. 1694 The default is tz@iana.org, as before. (Thanks to Joseph S. Myers.) 1695 1696 Update HTML checking to be compatible with Ubuntu 12.10. 1697 1698 Check that files are a safe subset of ASCII. At some point we may 1699 relax this requirement to a safe subset of UTF-8. Without the 1700 check, some non-UTF-8 encodings were leaking into the distribution. 1701 1702 Commentary changes: 1703 1704 Restore a comment about copyright notices that was inadvertently deleted. 1705 (Thanks to Arthur David Olson.) 1706 1707 Improve the commentary about which districts observe what times 1708 in Russia. (Thanks to Oscar van Vlijmen and Arthur David Olson). 1709 1710 Add web page links to tz.js. 1711 1712 Add "Run by the Monkeys" to tz-art. (Thanks to Arthur David Olson.) 1713 1714 1715Release 2012j - 2012-11-12 18:34:49 -0800 1716 1717 Libya moved to CET this weekend, but with DST planned next year. 1718 (Thanks to Even Scharning, Steffen Thorsen, and Tim Parenti.) 1719 1720 Signatures now have the extension .asc, not .sign, as that's more 1721 standard. (Thanks to Phil Pennock.) 1722 1723 The output of 'zdump --version', and of 'zic --version', now 1724 uses a format that is more typical for --version. 1725 (Thanks to Joseph S. Myers.) 1726 1727 The output of 'tzselect --help', 'zdump --help', and 'zic --help' 1728 now uses tz@iana.org rather than the old elsie address. 1729 1730 zic -v now complains about abbreviations that are less than 3 1731 or more than 6 characters, as per Posix. Formerly, it checked 1732 for abbreviations that were more than 3. 1733 1734 'make public' no longer puts its temporary directory under /tmp, 1735 and uses the just-built zic rather than the system zic. 1736 1737 Various fixes to documentation and commentary. 1738 1739 1740Release 2012i - 2012-11-03 12:57:09 -0700 1741 1742 Cuba switches from DST tomorrow at 01:00. (Thanks to Steffen Thorsen.) 1743 1744 Linker flags can now be specified via LDFLAGS. 1745 AWK now defaults to 'awk', not 'nawk'. 1746 The shell in tzselect now defaults to /bin/bash, but this can 1747 be overridden by specifying KSHELL. 1748 The main web page now mentions the unofficial GitHub repository. 1749 (Thanks to Mike Frysinger.) 1750 1751 Tarball signatures can now be built by running 'make signatures'. 1752 There are also new makefile rules 'tarballs', 'check_public', and 1753 separate makefile rules for each tarball and signature file. 1754 A few makefile rules are now more portable to strict POSIX. 1755 1756 The main web page now lists the canonical IANA URL. 1757 1758 1759Release 2012h - 2012-10-26 22:49:10 -0700 1760 1761 Bahia no longer has DST. (Thanks to Kelley Cook.) 1762 1763 Tocantins has DST. (Thanks to Rodrigo Severo.) 1764 1765 Israel has new DST rules next year. (Thanks to Ephraim Silverberg.) 1766 1767 Jordan stays on DST this winter. (Thanks to Steffen Thorsen.) 1768 1769 Web page updates. 1770 1771 More C modernization, except that at Arthur David Olson's suggestion 1772 the instances of 'register' were kept. 1773 1774 1775Release 2012g - 2012-10-17 20:59:45 -0700 1776 1777 Samoa fall 2012 and later. (Thanks to Nicholas Pereira and Robert Elz.) 1778 1779 Palestine fall 2012. (Thanks to Steffen Thorsen.) 1780 1781 Assume C89. 1782 1783 To attack the version-number problem, this release ships the file 1784 'Makefile' (which contains the release number) in both the tzcode and 1785 the tzdata tarballs. The two Makefiles are identical, and should be 1786 identical in any matching pair of tarballs, so it shouldn't matter 1787 which order you extract the tarballs. Perhaps we can come up with a 1788 better version-number scheme at some point; this scheme does have the 1789 virtue of not adding more files. 1790 1791 1792Release 2012f - 2012-09-12 23:17:03 -0700 1793 1794 * australasia (Pacific/Fiji): Fiji DST is October 21 through January 1795 20 this year. (Thanks to Steffen Thorsen.) 1796 1797 1798Release 2012e - 2012-08-02 20:44:55 -0700 1799 1800 * australasia (Pacific/Fakaofo): Tokelau is UTC+13, not UTC+14. 1801 (Thanks to Steffen Thorsen.) 1802 1803 * Use a single version number for both code and data. 1804 1805 * .gitignore: New file. 1806 1807 * Remove trailing white space. 1808 1809 1810Release code2012c-data2012d - 2012-07-19 16:35:33 -0700 1811 1812 Changes for Morocco's time stamps, which take effect in a couple of 1813 hours, along with infrastructure changes to accommodate how the tz 1814 code and data are released on IANA. 1815 1816 1817Release data2012c - 2012-03-27 12:17:25 -0400 1818 1819 africa 1820 Summer time changes for Morocco (to start late April 2012) 1821 1822 asia 1823 Changes for 2012 for Gaza & the West Bank (Hebron) and Syria 1824 1825 northamerica 1826 Haiti following US/Canada rules for 2012 (and we're assuming, 1827 for now anyway, for the future). 1828 1829 1830Release 2012b - 2012-03-02 12:29:15 +0700 1831 1832 There is just one change to tzcode2012b (compared with 2012a): 1833 the Makefile that was accidentally included with 2012a has been 1834 replaced with the version that should have been there, which is 1835 identical with the previous version (from tzcode2011i). 1836 1837 There are just two changes in tzdata2012b compared with 2012a. 1838 1839 Most significantly, summer time in Cuba has been delayed 3 weeks 1840 (now starts April 1 rather than March 11). Since Mar 11 (the old start 1841 date, as listed in 2012a) is just a little over a week away, this 1842 change is urgent. 1843 1844 Less importantly, an excess tab in one of the changes in zone.tab 1845 in 2012a has been removed. 1846 1847 1848Release 2012a - 2012-03-01 18:28:10 +0700 1849 1850 The changes in tzcode2012a (compared to the previous version, 2011i) 1851 are entirely to the README and tz-art.htm and tz-link.htm files, if 1852 none of those concern you, you can ignore the code update. The changes 1853 reflect the changed addresses for the mailing list and the code and 1854 data distribution points & methods (and a link to DateTime::TimeZone::Tzfile 1855 has been added to tz-link.htm). 1856 1857 In tzdata2012a (compared to the previous release, which was 2011n) 1858 the major changes are: 1859 Chile 2011/2012 and 2012/2013 summer time date adjustments. 1860 Falkland Islands onto permanent summer time (we're assuming for the 1861 foreseeable future, though 2012 is all we're fairly certain of.) 1862 Armenia has abolished Summer Time. 1863 Tokelau jumped the International Date Line back last December 1864 (just the same as their near neighbour, Samoa). 1865 America/Creston is a new zone for a small area of British Columbia 1866 There will be a leapsecond 2012-06-30 23:59:60 UTC. 1867 1868 Other minor changes are: 1869 Corrections to 1918 Canadian summer time end dates. 1870 Updated URL for UK time zone history (in comments) 1871 A few typos in Le Corre's list of free French place names (comments) 1872 1873 1874Release data2011n - 2011-10-30 14:57:54 +0700 1875 1876 There are three changes of note - most urgently, Cuba (America/Havana) 1877 has extended summer time by two weeks, now to end on Nov 13, rather than 1878 the (already past) Oct 30. Second, the Pridnestrovian Moldavian Republic 1879 (Europe/Tiraspol) decided not to split from the rest of Moldova after 1880 all, and consequently that zone has been removed (again) and reinstated 1881 in the "backward" file as a link to Europe/Chisinau. And third, the 1882 end date for Fiji's summer time this summer was moved forward from the 1883 earlier planned Feb 26, to Jan 22. 1884 1885 Apart from that, Moldova (MD) returns to a single entry in zone.tab 1886 (and the incorrect syntax that was in the 2011m version of that file 1887 is so fixed - it would have been fixed in a different way had this 1888 change not happened - that's the "missing" sccs version id). 1889 1890 1891Release data2011m - 2011-10-24 21:42:16 +0700 1892 1893 In particular, the typos in comments in the data (2011-11-17 should have 1894 been 2011-10-17 as Alan Barrett noted, and spelling of Tiraspol that 1895 Tim Parenti noted) have been fixed, and the change for Ukraine has been 1896 made in all 4 Ukrainian zones, rather than just Kiev (again, thanks to 1897 Tim Parenti, and also Denys Gavrysh) 1898 1899 In addition, I added Europe/Tiraspol to zone.tab. 1900 1901 This time, all the files have new version numbers... (including the files 1902 otherwise unchanged in 2011m that were changed in 2011l but didn't get new 1903 version numbers there...) 1904 1905 1906Release data2011l - 2011-10-10 11:15:43 +0700 1907 1908 There are just 2 changes that cause different generated tzdata files from 1909 zic, to Asia/Hebron and Pacific/Fiji - the possible change for Bahia, Brazil 1910 is included, but commented out. Compared with the diff I sent out last week, 1911 this version also includes attributions for the sources for the changes 1912 (in much the same format as ado used, but the html tags have not been 1913 checked, verified, or used in any way at all, so if there are errors there, 1914 please let me know.) 1915 1916 1917Release data2011k - 2011-09-20 17:54:03 -0400 1918 1919 [not summarized] 1920 1921 1922Release data2011j - 2011-09-12 09:22:49 -0400 1923 1924 (contemporary changes for Samoa; past changes for Kenya, Uganda, and 1925 Tanzania); there are also two spelling corrections to comments in 1926 the australasia file (with thanks to Christos Zoulas). 1927 1928 1929Release 2011i - 2011-08-29 05:56:32 -0400 1930 1931 [not summarized] 1932 1933 1934Release data2011h - 2011-06-15 18:41:48 -0400 1935 1936 Russia and Curaçao changes 1937 1938 1939Release 2011g - 2011-04-25 09:07:22 -0400 1940 1941 update the rules for Egypt to reflect its abandonment of DST this year 1942 1943 1944Release 2011f - 2011-04-06 17:14:53 -0400 1945 1946 [not summarized] 1947 1948 1949Release 2011e - 2011-03-31 16:04:38 -0400 1950 1951 Morocco, Chile, and tz-link changes 1952 1953 1954Release 2011d - 2011-03-14 09:18:01 -0400 1955 1956 changes that impact present-day time stamps in Cuba, Samoa, and Turkey 1957 1958 1959Release 2011c - 2011-03-07 09:30:09 -0500 1960 1961 These do affect current time stamps in Chile and Annette Island, Canada. 1962 1963 1964Release 2011b - 2011-02-07 08:44:50 -0500 1965 1966 [not summarized] 1967 1968 1969Release 2011a - 2011-01-24 10:30:16 -0500 1970 1971 [not summarized] 1972 1973 1974Release data2010o - 2010-11-01 09:18:23 -0400 1975 1976 change to the end of DST in Fiji in 2011 1977 1978 1979Release 2010n - 2010-10-25 08:19:17 -0400 1980 1981 [not summarized] 1982 1983 1984Release 2010m - 2010-09-27 09:24:48 -0400 1985 1986 Hong Kong, Vostok, and zic.c changes 1987 1988 1989Release 2010l - 2010-08-16 06:57:25 -0400 1990 1991 [not summarized] 1992 1993 1994Release 2010k - 2010-07-26 10:42:27 -0400 1995 1996 [not summarized] 1997 1998 1999Release 2010j - 2010-05-10 09:07:48 -0400 2000 2001 changes for Bahía de Banderas and for version naming 2002 2003 2004Release data2010i - 2010-04-16 18:50:45 -0400 2005 2006 the end of DST in Morocco on 2010-08-08 2007 2008 2009Release data2010h - 2010-04-05 09:58:56 -0400 2010 2011 [not summarized] 2012 2013 2014Release data2010g - 2010-03-24 11:14:53 -0400 2015 2016 [not summarized] 2017 2018 2019Release 2010f - 2010-03-22 09:45:46 -0400 2020 2021 [not summarized] 2022 2023 2024Release data2010e - 2010-03-08 14:24:27 -0500 2025 2026 corrects the Dhaka bug found by Danvin Ruangchan 2027 2028 2029Release data2010d - 2010-03-06 07:26:01 -0500 2030 2031 [not summarized] 2032 2033 2034Release 2010c - 2010-03-01 09:20:58 -0500 2035 2036 changes including KRE's suggestion for earlier initialization of 2037 "goahead" and "goback" structure elements 2038 2039 2040Release code2010a - 2010-02-16 10:40:04 -0500 2041 2042 [not summarized] 2043 2044 2045Release data2010b - 2010-01-20 12:37:01 -0500 2046 2047 Mexico changes 2048 2049 2050Release data2010a - 2010-01-18 08:30:04 -0500 2051 2052 changes to Dhaka 2053 2054 2055Release data2009u - 2009-12-26 08:32:28 -0500 2056 2057 changes to DST in Bangladesh 2058 2059 2060Release 2009t - 2009-12-21 13:24:27 -0500 2061 2062 [not summarized] 2063 2064 2065Release data2009s - 2009-11-14 10:26:32 -0500 2066 2067 (cosmetic) Antarctica change and the DST-in-Fiji-in-2009-and-2010 change 2068 2069 2070Release 2009r - 2009-11-09 10:10:31 -0500 2071 2072 "antarctica" and "tz-link.htm" changes 2073 2074 2075Release 2009q - 2009-11-02 09:12:40 -0500 2076 2077 with two corrections as reported by Eric Muller and Philip Newton 2078 2079 2080Release data2009p - 2009-10-23 15:05:27 -0400 2081 2082 Argentina (including San Luis) changes (with the correction from 2083 Mariano Absatz) 2084 2085 2086Release data2009o - 2009-10-14 16:49:38 -0400 2087 2088 Samoa (commentary only), Pakistan, and Bangladesh changes 2089 2090 2091Release data2009n - 2009-09-22 15:13:38 -0400 2092 2093 added commentary for Argentina and a change to the end of DST in 2094 2009 in Pakistan 2095 2096 2097Release data2009m - 2009-09-03 10:23:43 -0400 2098 2099 Samoa and Palestine changes 2100 2101 2102Release data2009l - 2009-08-14 09:13:07 -0400 2103 2104 Samoa (comments only) and Egypt 2105 2106 2107Release 2009k - 2009-07-20 09:46:08 -0400 2108 2109 [not summarized] 2110 2111 2112Release data2009j - 2009-06-15 06:43:59 -0400 2113 2114 Bangladesh change (with a short turnaround since the DST change is 2115 impending) 2116 2117 2118Release 2009i - 2009-06-08 09:21:22 -0400 2119 2120 updating for DST in Bangladesh this year 2121 2122 2123Release 2009h - 2009-05-26 09:19:14 -0400 2124 2125 [not summarized] 2126 2127 2128Release data2009g - 2009-04-20 16:34:07 -0400 2129 2130 Cairo 2131 2132 2133Release data2009f - 2009-04-10 11:00:52 -0400 2134 2135 correct DST in Pakistan 2136 2137 2138Release 2009e - 2009-04-06 09:08:11 -0400 2139 2140 [not summarized] 2141 2142 2143Release 2009d - 2009-03-23 09:38:12 -0400 2144 2145 Morocco, Tunisia, Argentina, and American Astronomical Society changes 2146 2147 2148Release data2009c - 2009-03-16 09:47:51 -0400 2149 2150 change to the start of Cuban DST 2151 2152 2153Release 2009b - 2009-02-09 11:15:22 -0500 2154 2155 [not summarized] 2156 2157 2158Release 2009a - 2009-01-21 10:09:39 -0500 2159 2160 [not summarized] 2161 2162 2163Release data2008i - 2008-10-21 12:10:25 -0400 2164 2165 southamerica and zone.tab files, with Argentina DST rule changes and 2166 United States zone reordering and recommenting 2167 2168 2169Release 2008h - 2008-10-13 07:33:56 -0400 2170 2171 [not summarized] 2172 2173 2174Release 2008g - 2008-10-06 09:03:18 -0400 2175 2176 Fix a broken HTML anchor and update Brazil's DST transitions; 2177 there's also a slight reordering of information in tz-art.htm. 2178 2179 2180Release data2008f - 2008-09-09 22:33:26 -0400 2181 2182 [not summarized] 2183 2184 2185Release 2008e - 2008-07-28 14:11:17 -0400 2186 2187 changes by Arthur David Olson and Jesper Nørgaard Welen 2188 2189 2190Release data2008d - 2008-07-07 09:51:38 -0400 2191 2192 changes by Arthur David Olson, Paul Eggert, and Rodrigo Severo 2193 2194 2195Release data2008c - 2008-05-19 17:48:03 -0400 2196 2197 Pakistan, Morocco, and Mongolia 2198 2199 2200Release data2008b - 2008-03-24 08:30:59 -0400 2201 2202 including renaming Asia/Calcutta to Asia/Kolkata, with a backward 2203 link provided 2204 2205 2206Release 2008a - 2008-03-08 05:42:16 -0500 2207 2208 [not summarized] 2209 2210 2211Release 2007k - 2007-12-31 10:25:22 -0500 2212 2213 most importantly, changes to the "southamerica" file based on 2214 Argentina's readoption of daylight saving time 2215 2216 2217Release 2007j - 2007-12-03 09:51:01 -0500 2218 2219 1. eliminate the "P" (parameter) macro; 2220 2221 2. the "noncontroversial" changes circulated on the time zone 2222 mailing list (less the changes to "logwtmp.c"); 2223 2224 3. eliminate "too many transition" errors when "min" is used in time 2225 zone rules; 2226 2227 4. changes by Paul Eggert (including updated information for Venezuela). 2228 2229 2230Release data2007i - 2007-10-30 10:28:11 -0400 2231 2232 changes for Cuba and Syria 2233 2234 2235Release 2007h - 2007-10-01 10:05:51 -0400 2236 2237 changes by Paul Eggert, as well as an updated link to the ICU 2238 project in tz-link.htm 2239 2240 2241Release 2007g - 2007-08-20 10:47:59 -0400 2242 2243 changes by Paul Eggert 2244 2245 The "leapseconds" file has been updated to incorporate the most 2246 recent International Earth Rotation and Reference Systems Service 2247 (IERS) bulletin. 2248 2249 There's an addition to tz-art.htm regarding the television show "Medium". 2250 2251 2252Release 2007f - 2007-05-07 10:46:46 -0400 2253 2254 changes by Paul Eggert (including Haiti, Turks and Caicos, and New 2255 Zealand) 2256 2257 changes to zic.c to allow hour values greater than 24 (along with 2258 Paul's improved time value overflow checking) 2259 2260 2261Release 2007e - 2007-04-02 10:11:52 -0400 2262 2263 Syria and Honduras changes by Paul Eggert 2264 2265 zic.c variable renaming changes by Arthur David Olson 2266 2267 2268Release 2007d - 2007-03-20 08:48:30 -0400 2269 2270 changes by Paul Eggert 2271 2272 the elimination of white space at the ends of lines 2273 2274 2275Release 2007c - 2007-02-26 09:09:37 -0500 2276 2277 changes by Paul Eggert 2278 2279 2280Release 2007b - 2007-02-12 09:34:20 -0500 2281 2282 Paul Eggert's proposed change to the quotation handling logic in zic.c. 2283 2284 changes to the commentary in "leapseconds" reflecting the IERS 2285 announcement that there is to be no positive leap second at the end 2286 of June 2007. 2287 2288 2289Release 2007a - 2007-01-08 12:28:29 -0500 2290 2291 changes by Paul Eggert 2292 2293 Derick Rethan's Asmara change 2294 2295 Oscar van Vlijmen's Easter Island local mean time change 2296 2297 symbolic link changes 2298 2299 2300Release 2006p - 2006-11-27 08:54:27 -0500 2301 2302 changes by Paul Eggert 2303 2304 2305Release 2006o - 2006-11-06 09:18:07 -0500 2306 2307 changes by Paul Eggert 2308 2309 2310Release 2006n - 2006-10-10 11:32:06 -0400 2311 2312 changes by Paul Eggert 2313 2314 2315Release 2006m - 2006-10-02 15:32:35 -0400 2316 2317 changes for Uruguay, Palestine, and Egypt by Paul Eggert 2318 2319 (minimalist) changes to zic.8 to clarify "until" information 2320 2321 2322Release data2006l - 2006-09-18 12:58:11 -0400 2323 2324 Paul's best-effort work on this coming weekend's Egypt time change 2325 2326 2327Release 2006k - 2006-08-28 12:19:09 -0400 2328 2329 changes by Paul Eggert 2330 2331 2332Release 2006j - 2006-08-21 09:56:32 -0400 2333 2334 changes by Paul Eggert 2335 2336 2337Release code2006i - 2006-08-07 12:30:55 -0400 2338 2339 localtime.c fixes 2340 2341 Ken Pizzini's conversion script 2342 2343 2344Release code2006h - 2006-07-24 09:19:37 -0400 2345 2346 adds public domain notices to four files 2347 2348 includes a fix for transition times being off by a second 2349 2350 adds a new recording to the "arts" file (information courtesy Colin Bowern) 2351 2352 2353Release 2006g - 2006-05-08 17:18:09 -0400 2354 2355 northamerica changes by Paul Eggert 2356 2357 2358Release 2006f - 2006-05-01 11:46:00 -0400 2359 2360 a missing version number problem is fixed (with thanks to Bradley 2361 White for catching the problem) 2362 2363 2364Release 2006d - 2006-04-17 14:33:43 -0400 2365 2366 changes by Paul Eggert 2367 2368 added new items to tz-arts.htm that were found by Paul 2369 2370 2371Release 2006c - 2006-04-03 10:09:32 -0400 2372 2373 two sets of data changes by Paul Eggert 2374 2375 a fencepost error fix in zic.c 2376 2377 changes to zic.c and the "europe" file to minimize differences 2378 between output produced by the old 32-bit zic and the new 64-bit 2379 version 2380 2381 2382Release 2006b - 2006-02-20 10:08:18 -0500 2383 [tz32code2006b + tz64code2006b + tzdata2006b] 2384 2385 64-bit code 2386 2387 All SCCS IDs were bumped to "8.1" for this release. 2388 2389 2390Release 2006a - 2006-01-30 08:59:31 -0500 2391 2392 changes by Paul Eggert (in particular, Indiana time zone moves) 2393 2394 an addition to the zic manual page to describe how special-case 2395 transitions are handled 2396 2397 2398Release 2005r - 2005-12-27 09:27:13 -0500 2399 2400 Canadian changes by Paul Eggert 2401 2402 They also add "<pre>" directives to time zone data files and reflect 2403 changes to warning message logic in "zdump.c" (but with calls to 2404 "gettext" kept unbundled at the suggestion of Ken Pizzini). 2405 2406 2407Release 2005q - 2005-12-13 09:17:09 -0500 2408 2409 Nothing earth-shaking here: 2410 1. Electronic mail addresses have been removed. 2411 2. Casts of the return value of exit have been removed. 2412 3. Casts of the argument of is.* macros have been added. 2413 4. Indentation in one section of zic.c has been fixed. 2414 5. References to dead URLs in the data files have been dealt with. 2415 2416 2417Release 2005p - 2005-12-05 10:30:53 -0500 2418 2419 "systemv", "tz-link.htm", and "zdump.c" changes 2420 (less the casts of arguments to the is* macros) 2421 2422 2423Release 2005o - 2005-11-28 10:55:26 -0500 2424 2425 Georgia, Cuba, Nicaragua, and Jordan changes by Paul Eggert 2426 2427 zdump.c lint fixes by Arthur David Olson 2428 2429 2430Release 2005n - 2005-10-03 09:44:09 -0400 2431 2432 changes by Paul Eggert (both the Uruguay changes and the Kyrgyzstan 2433 et al. changes) 2434 2435 2436Release 2005m - 2005-08-29 12:15:40 -0400 2437 2438 changes by Paul Eggert (with a small tweak to the tz-art change) 2439 2440 a declaration of an unused variable has been removed from zdump.c 2441 2442 2443Release 2005l - 2005-08-22 12:06:39 -0400 2444 2445 changes by Paul Eggert 2446 2447 overflow/underflow checks by Arthur David Olson, minus changes to 2448 the "Theory" file about the pending addition of 64-bit data (I grow 2449 less confident of the changes being accepted with each passing day, 2450 and the changes no longer increase the data files nine-fold--there's 2451 less than a doubling in size by my local Sun's reckoning) 2452 2453 2454Release 2005k - 2005-07-14 14:14:24 -0400 2455 2456 The "leapseconds" file has been edited to reflect the recently 2457 announced leap second at the end of 2005. 2458 2459 I've also deleted electronic mail addresses from the files as an 2460 anti-spam measure. 2461 2462 2463Release 2005j - 2005-06-13 14:34:13 -0400 2464 2465 These reflect changes to limit the length of time zone abbreviations 2466 and the characters used in those abbreviations. 2467 2468 There are also changes to handle POSIX-style "quoted" time zone 2469 environment variables. 2470 2471 The changes were circulated on the time zone mailing list; the only 2472 change since then was the removal of a couple of minimum-length of 2473 abbreviation checks. 2474 2475 2476Release data2005i - 2005-04-21 15:04:16 -0400 2477 2478 changes (most importantly to Nicaragua and Haiti) by Paul Eggert 2479 2480 2481Release 2005h - 2005-04-04 11:24:47 -0400 2482 2483 changes by Paul Eggert 2484 2485 minor changes to Makefile and zdump.c to produce more useful output 2486 when doing a "make typecheck" 2487 2488 2489Release 2005g - 2005-03-14 10:11:21 -0500 2490 2491 changes by Paul Eggert (a change to current DST rules in Uruguay and 2492 an update to a link to time zone software) 2493 2494 2495Release 2005f - 2005-03-01 08:45:32 -0500 2496 2497 data and documentation changes by Paul Eggert 2498 2499 2500Release 2005e - 2005-02-10 15:59:44 -0500 2501 2502 [not summarized] 2503 2504 2505Release code2005d - 2005-01-31 09:21:47 -0500 2506 2507 make zic complain about links to links if the -v flag is used 2508 2509 have "make public" do more code checking 2510 2511 add an include to "localtime.c" for the benefit of gcc systems 2512 2513 2514Release 2005c - 2005-01-17 18:36:29 -0500 2515 2516 get better results when mktime runs on a system where time_t is double 2517 2518 changes to the data files (most importantly to Paraguay) 2519 2520 2521Release 2005b - 2005-01-10 09:19:54 -0500 2522 2523 Get localtime and gmtime working on systems with exotic time_t types. 2524 2525 Update the leap second commentary in the "leapseconds" file. 2526 2527 2528Release 2005a - 2005-01-01 13:13:44 -0500 2529 2530 [not summarized] 2531 2532 2533Release code2004i - 2004-12-14 13:42:58 -0500 2534 2535 Deal with systems where time_t is unsigned. 2536 2537 2538Release code2004h - 2004-12-07 11:40:18 -0500 2539 2540 64-bit-time_t changes 2541 2542 2543Release 2004g - 2004-11-02 09:06:01 -0500 2544 2545 update to Cuba (taking effect this weekend) 2546 2547 other changes by Paul Eggert 2548 2549 correction of the spelling of Oslo 2550 2551 changed versions of difftime.c and private.h 2552 2553 2554Release code2004f - 2004-10-21 10:25:22 -0400 2555 2556 Cope with wide-ranging tm_year values. 2557 2558 2559Release 2004e - 2004-10-11 14:47:21 -0400 2560 2561 Brazil/Argentina/Israel changes by Paul Eggert 2562 2563 changes to tz-link.htm by Paul 2564 2565 one small fix to Makefile 2566 2567 2568Release 2004d - 2004-09-22 08:27:29 -0400 2569 2570 Avoid overflow problems when TM_YEAR_BASE is added to an integer. 2571 2572 2573Release 2004c - 2004-08-11 12:06:26 -0400 2574 2575 asctime-related changes 2576 2577 (variants of) some of the documentation changes suggested by Paul Eggert 2578 2579 2580Release 2004b - 2004-07-19 14:33:35 -0400 2581 2582 data changes by Paul Eggert - most importantly, updates for Argentina 2583 2584 2585Release 2004a - 2004-05-27 12:00:47 -0400 2586 2587 changes by Paul Eggert 2588 2589 Handle DST transitions that occur at the end of a month in some 2590 years but at the start of the following month in other years. 2591 2592 Add a copy of the correspondence that's the basis for claims about 2593 DST in the Navajo Nation. 2594 2595 2596Release 2003e - 2003-12-15 09:36:47 -0500 2597 2598 changes by Arthur David Olson (primarily code changes) 2599 2600 changes by Paul Eggert (primarily data changes) 2601 2602 minor changes to "Makefile" and "northamerica" (in the latter case, 2603 optimization of the "Toronto" rules) 2604 2605 2606Release 2003d - 2003-10-06 09:34:44 -0400 2607 2608 changes by Paul Eggert 2609 2610 2611Release 2003c - 2003-09-16 10:47:05 -0400 2612 2613 Fix bad returns in zic.c's inleap function. 2614 Thanks to Bradley White for catching the problem! 2615 2616 2617Release 2003b - 2003-09-16 07:13:44 -0400 2618 2619 Add a "--version" option (and documentation) to the zic and zdump commands. 2620 2621 changes to overflow/underflow checking in zic 2622 2623 a localtime typo fix. 2624 2625 Update the leapseconds and tz-art.htm files. 2626 2627 2628Release 2003a - 2003-03-24 09:30:54 -0500 2629 2630 changes by Paul Eggert 2631 2632 a few additions and modifications to the tz-art.htm file 2633 2634 2635Release 2002d - 2002-10-15 13:12:42 -0400 2636 2637 changes by Paul Eggert, less the "Britain (UK)" change in iso3166.tab 2638 2639 There's also a new time zone quote in "tz-art.htm". 2640 2641 2642Release 2002c - 2002-04-04 11:55:20 -0500 2643 2644 changes by Paul Eggert 2645 2646 Change zic.c to avoid creating symlinks to files that don't exist. 2647 2648 2649Release 2002b - 2002-01-28 12:56:03 -0500 2650 2651 [These change notes are for Release 2002a, which was corrupted. 2652 2002b was a corrected version of 2002a.] 2653 2654 changes by Paul Eggert 2655 2656 Update the "leapseconds" file to note that there'll be no leap 2657 second at the end of June, 2002. 2658 2659 Change "zic.c" to deal with a problem in handling the "Asia/Bishkek" zone. 2660 2661 Change to "difftime.c" to avoid sizeof problems. 2662 2663 2664Release 2001d - 2001-10-09 13:31:32 -0400 2665 2666 changes by Paul Eggert 2667 2668 2669Release 2001c - 2001-06-05 13:59:55 -0400 2670 2671 changes by Paul Eggert and Andrew Brown 2672 2673 2674Release 2001b - 2001-04-05 16:44:38 -0400 2675 2676 changes by Paul Eggert (modulo jnorgard's typo fix) 2677 2678 tz-art.htm has been HTMLified. 2679 2680 2681Release 2001a - 2001-03-13 12:57:44 -0500 2682 2683 changes by Paul Eggert 2684 2685 An addition to the "leapseconds" file: comments with the text of the 2686 latest IERS leap second notice. 2687 2688 Trailing white space has been removed from data file lines, and 2689 repeated spaces in "Rule Jordan" lines in the "asia" file have been 2690 converted to tabs. 2691 2692 2693Release 2000h - 2000-12-14 15:33:38 -0500 2694 2695 changes by Paul Eggert 2696 2697 one typo fix in the "art" file 2698 2699 With providence, this is the last update of the millennium. 2700 2701 2702Release 2000g - 2000-10-10 11:35:22 -0400 2703 2704 changes by Paul Eggert 2705 2706 correction of John Mackin's name submitted by Robert Elz 2707 2708 Garry Shandling's Daylight Saving Time joke (!?!) from the recent 2709 Emmy Awards broadcast. 2710 2711 2712Release 2000f - 2000-08-10 09:31:58 -0400 2713 2714 changes by Paul Eggert 2715 2716 Added information in "tz-art.htm" on a Seinfeld reference to DST. 2717 2718 Error checking and messages in the "yearistype" script have been 2719 improved. 2720 2721 2722Release 2000e - 2000-07-31 09:27:54 -0400 2723 2724 data changes by Paul Eggert 2725 2726 a change to the default value of the defined constant HAVE_STRERROR 2727 2728 the addition of a Dave Barry quote on DST to the tz-arts file 2729 2730 2731Release 2000d - 2000-04-20 15:43:04 -0400 2732 2733 changes to the documentation and code of strftime for C99 conformance 2734 2735 a bug fix for date.c 2736 2737 These are based on (though modified from) changes by Paul Eggert. 2738 2739 2740Release 2000c - 2000-03-04 10:31:43 -0500 2741 2742 changes by Paul Eggert 2743 2744 2745Release 2000b - 2000-02-21 12:16:29 -0500 2746 2747 changes by Paul Eggert and Joseph Myers 2748 2749 modest tweaks to the tz-art.htm and tz-link.htm files 2750 2751 2752Release 2000a - 2000-01-18 09:21:26 -0500 2753 2754 changes by Paul Eggert 2755 2756 The two hypertext documents have also been renamed. 2757 2758 2759Release code1999i-data1999j - 1999-11-15 18:43:22 -0500 2760 2761 Paul Eggert's changes 2762 2763 additions to the "zic" manual page and the "Arts.htm" file 2764 2765 2766Release code1999h-data1999i - 1999-11-08 14:55:21 -0500 2767 2768 [not summarized] 2769 2770 2771Release data1999h - 1999-10-07 03:50:29 -0400 2772 2773 changes by Paul Eggert to "europe" (most importantly, fixing 2774 Lithuania and Estonia) 2775 2776 2777Release 1999g - 1999-09-28 11:06:18 -0400 2778 2779 data changes by Paul Eggert (most importantly, the change for 2780 Lebanon that buys correctness for this coming Sunday) 2781 2782 The "code" file contains changes to "Makefile" and "checktab.awk" to 2783 allow better checking of time zone files before they are published. 2784 2785 2786Release 1999f - 1999-09-23 09:48:14 -0400 2787 2788 changes by Arthur David Olson and Paul Eggert 2789 2790 2791Release 1999e - 1999-08-17 15:20:54 -0400 2792 2793 changes circulated by Paul Eggert, although the change to handling 2794 of DST-specifying time zone names has been commented out for now 2795 (search for "XXX" in "localtime.c" for details). These files also 2796 do not make any changes to the start of DST in Brazil. 2797 2798 In addition to Paul's changes, there are updates to "Arts.htm" and 2799 cleanups of URLs. 2800 2801 2802Release 1999d - 1999-03-30 11:31:07 -0500 2803 2804 changes by Paul Eggert 2805 2806 The Makefile's "make public" rule has also been changed to do a test 2807 compile of each individual time zone data file (which should help 2808 avoid problems such as the one we had with Nicosia). 2809 2810 2811Release 1999c - 1999-03-25 09:47:47 -0500 2812 2813 changes by Paul Eggert, most importantly the change for Chile. 2814 2815 2816Release 1999b - 1999-02-01 17:51:44 -0500 2817 2818 changes by Paul Eggert 2819 2820 code changes (suggested by Mani Varadarajan, mani at be.com) for 2821 correct handling of symbolic links when building using a relative directory 2822 2823 code changes to generate correct messages for failed links 2824 2825 updates to the URLs in Arts.htm 2826 2827 2828Release 1999a - 1999-01-19 16:20:29 -0500 2829 2830 error message internationalizations and corrections in zic.c and 2831 zdump.c (as suggested by Vladimir Michl, vladimir.michl at upol.cz, 2832 to whom thanks!) 2833 2834 2835Release code1998h-data1998i - 1998-10-01 09:56:10 -0400 2836 2837 changes for Brazil, Chile, and Germany 2838 2839 support for use of "24:00" in the input files for the time zone compiler 2840 2841 2842Release code1998g-data1998h - 1998-09-24 10:50:28 -0400 2843 2844 changes by Paul Eggert 2845 2846 correction to a define in the "private.h" file 2847 2848 2849Release data1998g - 1998-08-11 03:28:35 -0000 2850 [tzdata1998g.tar.gz is missing!] 2851 2852 Lithuanian change provided by mgedmin at pub.osf.it 2853 2854 Move creation of the GMT link with Etc/GMT to "etcetera" (from 2855 "backward") to ensure that the GMT file is created even where folks 2856 don't want the "backward" links (as suggested by Paul Eggert). 2857 2858 2859Release data1998f - 1998-07-20 13:50:00 -0000 2860 [tzdata1998f.tar.gz is missing!] 2861 2862 Update the "leapseconds" file to include the newly-announced 2863 insertion at the end of 1998. 2864 2865 2866Release code1998f - 1998-06-01 10:18:31 -0400 2867 2868 addition to localtime.c by Guy Harris 2869 2870 2871Release 1998e - 1998-05-28 09:56:26 -0400 2872 2873 The Makefile is changed to produce zoneinfo-posix rather than 2874 zoneinfo/posix, and to produce zoneinfo-leaps rather than 2875 zoneinfo/right. 2876 2877 data changes by Paul Eggert 2878 2879 changes from Guy Harris to provide asctime_r and ctime_r 2880 2881 A usno1998 file (substantially identical to usno1997) has been added. 2882 2883 2884Release 1998d - 1998-05-14 11:58:34 -0400 2885 2886 changes to comments (in particular, elimination of references to CIA maps). 2887 "Arts.htm", "WWW.htm", "asia", and "australasia" are the only places 2888 where changes occur. 2889 2890 2891Release 1998c - 1998-02-28 12:32:26 -0500 2892 2893 changes by Paul Eggert (save the "French correction," on which I'll 2894 wait for the dust to settle) 2895 2896 symlink changes 2897 2898 changes and additions to Arts.htm 2899 2900 2901Release 1998b - 1998-01-17 14:31:51 -0500 2902 2903 URL cleanups and additions 2904 2905 2906Release 1998a - 1998-01-13 12:37:35 -0500 2907 2908 changes by Paul Eggert 2909 2910 2911Release code1997i-data1997k - 1997-12-29 09:53:41 -0500 2912 2913 changes by Paul Eggert, with minor modifications from Arthur David 2914 Olson to make the files more browser friendly 2915 2916 2917Release code1997h-data1997j - 1997-12-18 17:47:35 -0500 2918 2919 minor changes to put "TZif" at the start of each time zone information file 2920 2921 a rule has also been added to the Makefile so you can 2922 make zones 2923 to just recompile the zone information files (rather than doing a 2924 full "make install" with its other effects). 2925 2926 2927Release data1997i - 1997-10-07 08:45:38 -0400 2928 2929 changes to Africa by Paul Eggert 2930 2931 2932Release code1997g-data1997h - 1997-09-04 16:56:54 -0400 2933 2934 corrections for Uruguay (and other locations) 2935 2936 Arthur David Olson's simple-minded fix allowing mktime to both 2937 correctly handle leap seconds and correctly handle tm_sec values 2938 upon which arithmetic has been performed. 2939 2940 2941Release code1997f-data1997g - 1997-07-19 13:15:02 -0400 2942 2943 Paul Eggert's updates 2944 2945 a small change to a function prototype; 2946 2947 "Music" has been renamed "Arts.htm", HTMLified, and augmented to 2948 include information on Around the World in Eighty Days. 2949 2950 2951Release code1997e-data1997f - 1997-05-03 18:52:34 -0400 2952 2953 fixes to zic's error handling 2954 2955 changes inspired by the item circulated on Slovenia 2956 2957 The description of Web resources has been HTMLified for browsing 2958 convenience. 2959 2960 A new piece of tz-related music has been added to the "Music" file. 2961 2962 2963Release code1997d-data1997e - 1997-03-29 12:48:52 -0500 2964 2965 Paul Eggert's latest suggestions 2966 2967 2968Release code1997c-data1997d - 1997-03-07 20:37:54 -0500 2969 2970 changes to "zic.c" to correct performance of the "-s" option 2971 2972 a new file "usno1997" 2973 2974 2975Release data1997c - 1997-03-04 09:58:18 -0500 2976 2977 changes in Israel 2978 2979 2980Release 1997b - 1997-02-27 18:34:19 -0500 2981 2982 The data file incorporates the 1997 leap second. 2983 2984 The code file incorporates Arthur David Olson's take on the 2985 zic/multiprocessor/directory-creation situation. 2986 2987 2988Release 1997a - 1997-01-21 09:11:10 -0500 2989 2990 Paul Eggert's Antarctica (and other changes) 2991 2992 Arthur David Olson finessed the "getopt" issue by checking against 2993 both -1 and EOF (regardless of POSIX, SunOS 4.1.1's manual says -1 2994 is returned while SunOS 5.5's manual says EOF is returned). 2995 2996 2997Release code1996o-data1996n - 1996-12-27 21:42:05 -0500 2998 2999 Paul Eggert's latest changes 3000 3001 3002Release code1996n - 1996-12-16 09:42:02 -0500 3003 3004 link snapping fix from Bruce Evans (via Garrett Wollman) 3005 3006 3007Release data1996m - 1996-11-24 02:37:34 -0000 3008 [tzdata1996m.tar.gz is missing!] 3009 3010 Paul Eggert's batch of changes 3011 3012 3013Release code1996m-data1996l - 1996-11-05 14:00:12 -0500 3014 3015 No functional changes here; the files have simply been changed to 3016 make more use of ISO style dates in comments. The names of the above 3017 files now include the year in full. 3018 3019 3020Release code96l - 1996-09-08 17:12:20 -0400 3021 3022 tzcode96k was missing a couple of pieces. 3023 3024 3025Release 96k - 1996-09-08 16:06:22 -0400 3026 3027 the latest round of changes from Paul Eggert 3028 3029 the recent Year 2000 material 3030 3031 3032Release code96j - 1996-07-30 13:18:53 -0400 3033 3034 Set sp->typecnt as suggested by Timothy Patrick Murphy. 3035 3036 3037Release code96i - 1996-07-27 20:11:35 -0400 3038 3039 Paul's suggested patch for strftime %V week numbers 3040 3041 3042Release data96i - 1996-07-01 18:13:04 -0400 3043 3044 "northamerica" and "europe" changes by Paul Eggert 3045 3046 3047Release code96h - 1996-06-05 08:02:21 -0400 3048 3049 fix for handling transitions specified in Universal Time 3050 3051 Some "public domain" notices have also been added. 3052 3053 3054Release code96g - 1996-05-16 14:00:26 -0400 3055 3056 fix for the simultaneous-DST-and-zone-change challenge 3057 3058 3059Release data96h - 1996-05-09 17:40:51 -0400 3060 3061 changes by Paul Eggert 3062 3063 3064Release code96f-data96g - 1996-05-03 03:09:59 -0000 3065 [tzcode96f.tar.gz + tzdata96g.tar.gz are both missing!] 3066 3067 The changes get us some of the way to fixing the problems noted in Paul 3068 Eggert's letter yesterday (in addition to a few others). The approach 3069 has been to make zic a bit smarter about figuring out what time zone 3070 abbreviations apply just after the time specified in the "UNTIL" part 3071 of a zone line. Putting the smarts in zic means avoiding having 3072 transition times show up in both "Zone" lines and "Rule" lines, which 3073 in turn avoids multiple transition time entries in time zone files. 3074 (This also makes the zic input files such as "europe" a bit shorter and 3075 should ease maintenance.) 3076 3077 3078Release data96f - 1996-04-19 19:20:03 -0000 3079 [tzdata96f.tar.gz is missing!] 3080 3081 The only changes are to the "northamerica" file; the time zone 3082 abbreviation for Denver is corrected to MST (and MDT), and the 3083 comments for Mexico have been updated. 3084 3085 3086Release data96e - 1996-03-19 17:37:26 -0500 3087 3088 Proposals by Paul Eggert, in particular the Portugal change that 3089 comes into play at the end of this month. 3090 3091 3092Release data96d - 1996-03-18 20:49:39 -0500 3093 3094 [not summarized] 3095 3096 3097Release code96e - 1996-02-29 15:43:27 -0000 3098 [tzcode96e.tar.gz is missing!] 3099 3100 internationalization changes and the fix to the documentation for strftime 3101 3102 3103Release code96d-data96c - 1996-02-12 11:05:27 -0500 3104 3105 The "code" file simply updates Bob Kridle's electronic address. 3106 3107 The "data" file updates rules for Mexico. 3108 3109 3110Release data96b - 1996-01-27 15:44:42 -0500 3111 3112 Kiribati change 3113 3114 3115Release code96c - 1996-01-16 16:58:15 -0500 3116 3117 leap-year streamlining and binary-search changes 3118 3119 fix to newctime.3 3120 3121 3122Release code96b - 1996-01-10 20:42:39 -0500 3123 3124 fixes and enhancements from Paul Eggert, including code that 3125 emulates the behavior of recent versions of the SunOS "date" 3126 command. 3127 3128 3129Release 96a - 1996-01-06 09:08:24 -0500 3130 3131 Israel updates 3132 3133 fixes to strftime.c for correct ISO 8601 week number generation, 3134 plus support for two new formats ('G' and 'g') to give ISO 8601 year 3135 numbers (which are not necessarily the same as calendar year numbers) 3136 3137 3138Release code95i-data95m - 1995-12-21 12:46:47 -0500 3139 3140 The latest revisions from Paul Eggert are included, the usno1995 3141 file has been updated, and a new file ("WWW") covering useful URLs 3142 has been added. 3143 3144 3145Release code95h-data95l - 1995-12-19 18:10:12 -0500 3146 3147 A simplification of a macro definition, a change to data for Sudan, 3148 and (for last minute shoppers) notes in the "Music" file on the CD 3149 "Old Man Time". 3150 3151 3152Release code95g-data95k - 1995-10-30 10:32:47 -0500 3153 3154 (slightly reformatted) 8-bit-clean proposed patch 3155 3156 minor patch: US/Eastern -> America/New_York 3157 3158 snapshot of the USNO's latest data ("usno1995") 3159 3160 some other minor cleanups 3161 3162 3163Release code95f-data95j - 1995-10-28 21:01:34 -0000 3164 [tzcode95f.tar.gz + tzdata95j.tar.gz are both missing!] 3165 3166 European cleanups 3167 3168 support for 64-bit time_t's 3169 3170 optimization in localtime.c 3171 3172 3173Release code95e - 1995-10-13 13:23:57 -0400 3174 3175 the mktime change to scan from future to past when trying to find time zone 3176 offsets 3177 3178 3179Release data95i - 1995-09-26 10:43:26 -0400 3180 3181 For Canada/Central, guess that the Sun customer's "one week too 3182 early" was just a approximation, and the true error is one month 3183 too early. This is consistent with the rest of Canada. 3184 3185 3186Release data95h - 1995-09-21 11:26:48 -0400 3187 3188 latest changes from Paul Eggert 3189 3190 3191Release code95d - 1995-09-14 11:14:45 -0400 3192 3193 the addition of a "Music" file, which documents four recorded 3194 versions of the tune "Save That Time". 3195 3196 3197Release data95g - 1995-09-01 17:21:36 -0400 3198 3199 "yearistype" correction 3200 3201 3202Release data95f - 1995-08-28 20:46:56 -0400 3203 3204 Paul Eggert's change to the australasia file 3205 3206 3207Release data95e - 1995-07-08 18:02:34 -0400 3208 3209 The only change is a leap second at the end of this year. 3210 Thanks to Bradley White for forwarding news on the leap second. 3211 3212 3213Release data95d - 1995-07-03 13:26:22 -0400 3214 3215 Paul Eggert's changes 3216 3217 3218Release data95c - 1995-07-02 19:19:28 -0400 3219 3220 changes to "asia", "backward", "europe", and "southamerica" 3221 (read: northamericacentrics need not apply) 3222 3223 3224Release code95c - 1995-03-13 14:00:46 -0500 3225 3226 one-line fix for sign extension problems in detzcode 3227 3228 3229Release 95b - 1995-03-04 11:22:38 -0500 3230 3231 Minor changes in both: 3232 3233 The "code" file contains a workaround for the lack of "unistd.h" in 3234 Microsoft C++ version 7. 3235 3236 The "data" file contains a fixed "Link" for America/Shiprock. 3237 3238 3239Release 94h - 1994-12-10 12:51:14 -0500 3240 3241 The files: 3242 3243 * incorporate the changes to "zdump" and "date" to make changes to 3244 the "TZ" environment variable permanent; 3245 3246 * incorporate the table changes by Paul Eggert; 3247 3248 * include (and document) support for universal time specifications in 3249 data files - but do not (yet) include use of this feature in the 3250 data files. 3251 3252 Think of this as "TZ Classic" - the software has been set up not to break if 3253 universal time shows up in its input, and data entries have been 3254 left as is so as not to break existing implementations. 3255 3256 3257Release data94f - 1994-08-20 12:56:09 -0400 3258 3259 (with thanks!) the latest data updates from Paul Eggert 3260 3261 3262Release data94e - 1994-06-04 13:13:53 -0400 3263 3264 [not summarized] 3265 3266 3267Release code94g - 1994-05-05 12:14:07 -0400 3268 3269 fix missing "optind.c" and a reference to it in the Makefile 3270 3271 3272Release code94f - 1994-05-05 13:00:33 -0000 3273 [tzcode94f.tar.gz is missing!] 3274 3275 changes to avoid overflow in difftime, as well as changes to cope 3276 with the 52/53 challenge in strftime 3277 3278 3279Release code94e - 1994-03-30 23:32:59 -0500 3280 3281 change for the benefit of PCTS 3282 3283 3284Release 94d - 1994-02-24 15:42:25 -0500 3285 3286 Avoid clashes with POSIX semantics for zones such as GMT+4. 3287 3288 Some other very minor housekeeping is also present. 3289 3290 3291Release code94c - 1994-02-10 08:52:40 -0500 3292 3293 Fix bug where mkdirs was broken unless you compile with 3294 -fwritable-strings (which is generally losing to do). 3295 3296 3297Release 94b - 1994-02-07 10:04:33 -0500 3298 3299 work by Paul Eggert who notes: 3300 3301 I found another book of time zone histories by E W Whitman; it's not 3302 as extensive as Shanks but has a few goodies of its own. I used it 3303 to update the tables. I also fixed some more as a result of 3304 correspondence with Adam David and Peter Ilieve, and move some stray 3305 links from 'europe' to 'backward'. I corrected some scanning errors 3306 in usno1989. 3307 3308 As far as the code goes, I fixed zic to allow years in the range 3309 INT_MIN to INT_MAX; this fixed a few boundary conditions around 1900. 3310 And I cleaned up the zic documentation a little bit. 3311 3312 3313Release data94a - 1994-02-03 08:58:54 -0500 3314 3315 It simply incorporates the recently announced leap second into the 3316 "leapseconds" file. 3317 3318 3319Release 93g - 1993-11-22 17:28:27 -0500 3320 3321 Paul Eggert has provided a good deal of historic information (based 3322 on Shanks), and there are some code changes to deal with the buglets 3323 that crawled out in dealing with the new information. 3324 3325 3326Release 93f - 1993-10-15 12:27:46 -0400 3327 3328 Paul Eggert's changes 3329 3330 3331Release 93e - 1993-09-05 21:21:44 -0400 3332 3333 This has updated data for Israel, England, and Kwajalein. There's 3334 also an update to "zdump" to cope with Kwajalein's 24-hour jump. 3335 Thanks to Paul Eggert and Peter Ilieve for the changes. 3336 3337 3338Release 93d - 1993-06-17 23:34:17 -0400 3339 3340 new fix and new data on Israel 3341 3342 3343Release 93c - 1993-06-06 19:31:55 -0400 3344 3345 [not summarized] 3346 3347 3348Release 93b - 1993-02-02 14:53:58 -0500 3349 3350 updated "leapseconds" file 3351 3352 3353Release 93 - 1993-01-08 07:01:06 -0500 3354 3355 At kre's suggestion, the package has been split in two - a code piece 3356 (which also includes documentation) that's only of use to folks who 3357 want to recompile things and a data piece useful to anyone who can 3358 run "zic". 3359 3360 The new version has a few changes to the data files, a few 3361 portability changes, and an off-by-one fix (with thanks to 3362 Tom Karzes at deshaw.com for providing a description and a 3363 solution). 3364 3365 3366Release 92c - 1992-11-21 17:35:36 -0000 3367 [tz92c.tar.Z is missing!] 3368 3369 The fallout from the latest round of DST transitions. 3370 3371 There are changes for Portugal, Saskatchewan, and "Pacific-New"; 3372 there's also a change to "zic.c" that makes it portable to more systems. 3373 3374 3375Release 92 - 1992-04-25 18:17:03 -0000 3376 [tz92.tar.Z is missing!] 3377 3378 By popular demand (well, at any rate, following a request by kre at munnari) 3379 3380 3381The 1989 update of the time zone package featured: 3382 3383 * POSIXization (including interpretation of POSIX-style TZ environment 3384 variables, provided by Guy Harris), 3385 * ANSIfication (including versions of "mktime" and "difftime"), 3386 * SVIDulation (an "altzone" variable) 3387 * MACHination (the "gtime" function) 3388 * corrections to some time zone data (including corrections to the rules 3389 for Great Britain and New Zealand) 3390 * reference data from the United States Naval Observatory for folks who 3391 want to do additional time zones 3392 * and the 1989 data for Saudi Arabia. 3393 3394 (Since this code will be treated as "part of the implementation" in some 3395 places and as "part of the application" in others, there's no good way to 3396 name functions, such as timegm, that are not part of the proposed ANSI C 3397 standard; such functions have kept their old, underscore-free names in this 3398 update.) 3399 3400 And the "dysize" function has disappeared; it was present to allow 3401 compilation of the "date" command on old BSD systems, and a version of "date" 3402 is now provided in the package. The "date" command is not created when you 3403 "make all" since it may lack options provided by the version distributed with 3404 your operating system, or may not interact with the system in the same way 3405 the native version does. 3406 3407 Since POSIX frowns on correct leap second handling, the default behavior of 3408 the "zic" command (in the absence of a "-L" option) has been changed to omit 3409 leap second information from its output files. 3410 3411 3412----- 3413Notes 3414 3415This file contains copies of the part of each release announcement 3416that talks about the changes in that release. The text has been 3417adapted and reformatted for the purposes of this file. 3418 3419Typically a release R consists of a pair of tarball files, 3420tzcodeR.tar.gz and tzdataR.tar.gz. However, some releases (e.g., 3421code2010a, data2012c) consist of just one or the other tarball, and a 3422few (e.g., code2012c-data2012d) have tarballs with mixed version 3423numbers. 3424 3425Release time stamps are taken from the release's commit (for newer, 3426git releases), from the newest file in the tarball (for older 3427releases, where this info is available) or from the email announcing 3428the release (if all else fails; these are marked with a time zone of 3429-0000 and an "is missing!" comment). 3430 3431Earlier versions of the code and data were not announced on the tz 3432list and are not summarized here. 3433 3434This file is in the public domain. 3435 3436Local Variables: 3437coding: utf-8 3438End: 3439