Import tzdata2023a from https://github.com/JodaOrg/global-tz/releases/download/2023agtz/tzdata2023agtz.tar.gz

Summary of changes in tzdata2023a (2023-03-22 12:39:33 -0700):
* Starting in 2023, Egy

Import tzdata2023a from https://github.com/JodaOrg/global-tz/releases/download/2023agtz/tzdata2023agtz.tar.gz

Summary of changes in tzdata2023a (2023-03-22 12:39:33 -0700):
* Starting in 2023, Egypt will observe DST from April's last Friday
through October's last Thursday.
* In 2023 Morocco's summer time start transition after Ramadan
will occur April 23, not April 30.
* This year Palestine will delay the start of summer time from
March 25 to April 29 due to Ramadan.
* Much of Greenland, represented by America/Nuuk, will continue to
observe DST using European Union rules.
* America/Yellowknife has changed from a Zone to a backward
compatibility Link, as it no longer differs from America/Edmonton
since 1970.
* Changes to commentary.

show more ...

Import tzdata2022g from https://github.com/JodaOrg/global-tz/releases/download/2022ggtz/tzdata2022ggtz.tar.gz

Summary of changes in tzdata2022g (2022-11-29 08:58:31 -0800):
* In the Mexican state

Import tzdata2022g from https://github.com/JodaOrg/global-tz/releases/download/2022ggtz/tzdata2022ggtz.tar.gz

Summary of changes in tzdata2022g (2022-11-29 08:58:31 -0800):
* In the Mexican state of Chihuahua, the border strip near the US
will change to agree with nearby US locations on 2022-11-30.
* Much of Greenland, represented by America/Nuuk, stops observing
winter time after March 2023, so its daylight saving time becomes
standard time.
* Changes for pre-1996 northern Canada (thanks to Chris Walton):
* Merge America/Iqaluit and America/Pangnirtung into the former,
with a backward compatibility link for the latter name.
* Cambridge Bay, Inuvik, Iqaluit, Rankin Inlet, Resolute and
Yellowknife did not observe DST in 1965, and did observe DST
from 1972 through 1979.
* Whitehorse moved from -09 to -08 on 1966-02-27, not 1967-05-28.
* Colombia's 1993 fallback was 02-06 24:00, not 04-04 00:00.
* Singapore's 1981-12-31 change was at 16:00 UTC (23:30 local time),
not 24:00 local time.

Zones added by this update:
America/Ciudad_Juarez

show more ...

Import tzdata2022f from
https://github.com/JodaOrg/global-tz/releases/download/2022fgtz/tzdata2022fgtz.tar.gz

Summary of changes in tzdata2022f (2022-10-28 18:04:57 -0700):
* Mexico will no lon

Import tzdata2022f from
https://github.com/JodaOrg/global-tz/releases/download/2022fgtz/tzdata2022fgtz.tar.gz

Summary of changes in tzdata2022f (2022-10-28 18:04:57 -0700):
* Mexico will no longer observe DST after 2022, except for areas
near the US border that continue to observe US DST rules.
* Fiji will not observe DST in 2022/3.
* Simplify four Ontario zones, as most of the post-1970 differences
seem to have been imaginary.

show more ...

Import tzdata2022e from https://github.com/JodaOrg/global-tz/releases/download/2022egtz/tzdata2022egtz.tar.gz

Summary of changes in tzdata2022e (2022-10-11 11:13:02 -0700):
* Jordan and Syria are

Import tzdata2022e from https://github.com/JodaOrg/global-tz/releases/download/2022egtz/tzdata2022egtz.tar.gz

Summary of changes in tzdata2022e (2022-10-11 11:13:02 -0700):
* Jordan and Syria are abandoning the DST regime and are changing to
permanent +03, so they will not fall back from +03 to +02 on
2022-10-28.
* On 1922-01-01 Tijuana adopted standard time at 00:00, not 01:00.

show more ...

Import tzdata2022c from https://github.com/JodaOrg/global-tz/releases/download//2022bgtz/tzdata2022bgtz.tar.gz

Summary of changes in tzdata2022c (2022-08-15 17:47:18 -0700):
* None.

Summary of ch

Import tzdata2022c from https://github.com/JodaOrg/global-tz/releases/download//2022bgtz/tzdata2022bgtz.tar.gz

Summary of changes in tzdata2022c (2022-08-15 17:47:18 -0700):
* None.

Summary of changes in tzdata2022b (2022-08-10 15:38:32 -0700):
* Chile's 2022 DST start is delayed from September 4 to September 11.
* Iran plans to stop observing DST permanently, after it falls back
on 2022-09-21.
* From fall 1994 through fall 1995, Shanks wrote that Crimea's
DST transitions were at 02:00 standard time, not at 00:00.
* Iran adopted standard time in 1935, not 1946.
* Chile's observance of -04 from 1946-08-29 through 1947-03-31 was
considered DST, not standard time.
* Some old, small clock transitions have been removed, as people at
the time did not change their clocks.

show more ...

Import tzdata2022agtz
not from ftp://ftp.iana.org/tz/releases/tzdata2022agtz.tar.gz
(2022a comes from ftp://ftp.iana.org/tz/releases/tzdata2022a.tar.gz)

Note that 2022agtz is mechanically deri

Import tzdata2022agtz
not from ftp://ftp.iana.org/tz/releases/tzdata2022agtz.tar.gz
(2022a comes from ftp://ftp.iana.org/tz/releases/tzdata2022a.tar.gz)

Note that 2022agtz is mechanically derived from 2022a by moving back
zone data from the "backzone" file that had been removed as "redundant"
(because differences to some other zone are all prior to 1970) so that
this pre 1970 data is restored. It isn't necessarily correct in all
cases, but it is usually better than using some other zone's data which
is just as likely to be incorrect for where it applies, and more so elsewhere.

Summary of changes in tzdata2022a (2022-03-15 23:02:01 -0700):
* Palestine will spring forward on 2022-03-27, not 2022-03-26.
* From 1992 through spring 1996, Ukraine's DST transitions were at
02:00 standard time, not at 01:00 UTC.
* Chile's Santiago Mean Time and its LMT precursor have been adjusted
eastward by 1 second to align with past and present law.
* Changes to commentary.

show more ...

Import tzdata2020f from ftp://ftp.iana.org/tz/releases/tzdata2020f.tar.gz

Release 2020f - 2020-12-29 00:17:46 -0800

No changes to tzdata, just to a part of the build procedure
not used on N

Import tzdata2020f from ftp://ftp.iana.org/tz/releases/tzdata2020f.tar.gz

Release 2020f - 2020-12-29 00:17:46 -0800

No changes to tzdata, just to a part of the build procedure
not used on NetBSD

Release 2020e - 2020-12-22 15:14:34 -0800

Volgograd switched to Moscow time on 2020-12-27 at 02:00.

Correct many pre-1986 transitions, fixing entries originally
derived from Shanks. The fixes include changes to:
Australia, Bahamas, Bermuda, Belize, Ghana, Israel and Palestine,
Kenya and adjacent, Nigeria and adjacent, Seychelles, Vanuatu

Australia/Currie has been moved to the 'backward' file and its
corrected data moved to the 'backzone' file.

To better match legislation in Turks and Caicos, the 2015 shift to
year-round observance of -04 is now modeled as AST throughout before
returning to Eastern Time with US DST in 2018, rather than as
maintaining EDT until 2015-11-01.

show more ...

Import tzdata2020b from ftp://ftp.iana.org/tz/releases/tzdata2020b.tar.gz

Summary of changes in tzdata2020b (2020-10-06 18:35:04 -0700):

Revised predictions for Morocco's changes starting in 2

Import tzdata2020b from ftp://ftp.iana.org/tz/releases/tzdata2020b.tar.gz

Summary of changes in tzdata2020b (2020-10-06 18:35:04 -0700):

Revised predictions for Morocco's changes starting in 2023.
Canada's Yukon changes to -07 on 2020-11-01, not 2020-03-08.
Macquarie Island has stayed in sync with Tasmania since 2011.
Casey, Antarctica is at +08 in winter and +11 in summer.

show more ...

Import tzdata2020a from ftp://ftp.iana.org/tz/releases/tzdata2020a.tar.gz

Summary of changes in tzdata2020a (2020-04-23 16:03:47 -0700):

Morocco resumes summer time on 2020-05-31, not 2020-05-2

Import tzdata2020a from ftp://ftp.iana.org/tz/releases/tzdata2020a.tar.gz

Summary of changes in tzdata2020a (2020-04-23 16:03:47 -0700):

Morocco resumes summer time on 2020-05-31, not 2020-05-24.
Canada's Yukon advanced to -07 year-round on 2020-03-08 (summer time
will not end this year)..
America/Nuuk renamed from America/Godthab (both names now exist).

show more ...

Import tzdata2019c from ftp://ftp.iana.org/tz/releases/tzdata2019c.tar.gz

Summary of changes in tzdata2019c (2019-09-11 08:59:48 -0700):
Fiji observes DST from 2019-11-10 to 2020-01-12
Norfolk Isl

Import tzdata2019c from ftp://ftp.iana.org/tz/releases/tzdata2019c.tar.gz

Summary of changes in tzdata2019c (2019-09-11 08:59:48 -0700):
Fiji observes DST from 2019-11-10 to 2020-01-12
Norfolk Island starts observing Australian-style DST

Plus historic corrections to time in Turkey (1940-85)
South Korea (1948-51) Detroit (US) (1967-8), Perry County
(Indiana, US) (pre 1970) Edmonton (CA) (1967, 1969)
Vancouver (CA) (1946), Vienna (AT) (1946), Kaliningrad (1945-6).
Louisville (US) (1946-50). Brussles (BE) (1892).
Hong Kong Winter Time (1941) now listed as being "DST".

Summary of changes in tzdata2019b (2019-07-01 00:09:53 -0700):

Brazil no longer observes DST
Predictions for Morocco extended to 2087.
Panestine (March 2019) time zone change date corrected
(and guesses for future transitions revised).

Historic updates: Honk Kong (1941 - 1947), Italy (1866).

show more ...

Import tzdata2019a from ftp://ftp.iana.org/tz/releases/tzdata2019a.tar.gz

Release 20198 - 2019-03-25 22:01:33 -0700

Briefly:
Palestine summer time starts on 2019-03-30 instead of 2019-03-23.

Import tzdata2019a from ftp://ftp.iana.org/tz/releases/tzdata2019a.tar.gz

Release 20198 - 2019-03-25 22:01:33 -0700

Briefly:
Palestine summer time starts on 2019-03-30 instead of 2019-03-23.
Metlakatla switched back to rejoin Alaska Time on 2019-01-20 at 02:00.

Israel observed summer time in 1980 (08-02/09-13) and 1984 (05-05/08-25).

Etc/UCT is now a backward-compatibility link to Etc/UTC, instead
of being a separate zone that generates the abbreviation "UCT".

show more ...

Import tzdata2018h from ftp://ftp.iana.org/tz/releases/tzdata2018h.tar.gz

Summary of changes in tzdata2018h (2018-12-23 17:59:32 -0800):

Qyzylorda (aka Kyzylorda) oblast in Kazakhstan moved fro

Import tzdata2018h from ftp://ftp.iana.org/tz/releases/tzdata2018h.tar.gz

Summary of changes in tzdata2018h (2018-12-23 17:59:32 -0800):

Qyzylorda (aka Kyzylorda) oblast in Kazakhstan moved from +06 to
+05 on 2018-12-21. This is a zone split as Qostanay (aka
Kostanay) did not switch, so create a zone Asia/Qostanay.

Metlakatla, Alaska observes PST this winter only.

Add predictions for Iran from 2038 through 2090.

Changes to some old timestamps for Nauru (1979) Guam (1959-77),
Hong Kong (1904, 1941, 1945, 1952) (others in Pacific during WWII)

show more ...

Import tzdata2018g from ftp://ftp.iana.org/tz/releases/tzdata2018g.tar.gz

Summary of changes in tzdata2018g (2018-10-26 22:22:45 -0700):

Morocco switches to permanent +01 on 2018-10-27.

Import tzdata2018f from ftp://ftp.iana.org/tz/releases/tzdata2018f.tar.gz

Volgograd moves from +03 to +04 on 2018-10-28.
Fiji ends DST 2019-01-13, not 2019-01-20.
Most of Chile changes DST dat

Import tzdata2018f from ftp://ftp.iana.org/tz/releases/tzdata2018f.tar.gz

Volgograd moves from +03 to +04 on 2018-10-28.
Fiji ends DST 2019-01-13, not 2019-01-20.
Most of Chile changes DST dates, effective 2019-04-06.

Plus corrections to North Korea's 2018-05-05 and China's April 1988
updates (getting the actual time/date of the transition correct)
Corrections for Macau pre 1992, Japan in late 1940's - early 1950's,
and China (Shanghai) 1940's. The Phillipines get their timezone
name abbreviations back.

show more ...

Import tzdata2018d from ftp://ftp.iana.org/tz/releases/tzdata2018d.tar.gz

Summary of changes in tzdata2018d (2018-03-22 07:05:46 -0700):

In 2018, Palestine starts DST on March 24 (today!), not Mar

Import tzdata2018d from ftp://ftp.iana.org/tz/releases/tzdata2018d.tar.gz

Summary of changes in tzdata2018d (2018-03-22 07:05:46 -0700):

In 2018, Palestine starts DST on March 24 (today!), not March 31

Casey Station in Antarctica changed from +11 to +08 on 2018-03-11
at 04:00.

Various adjustments to some historical conversions (several for
Uruguay (1920 .. 1990), one fpr Enderbury and Kiritimati (1994/5),
one for Portugal and colonies (1912) and Jamaica and Turks & Caicos
(pre 1913)).

show more ...

Import tzdata2018c from ftp://ftp.iana.org/tz/releases/tzdata2018c.tar.gz

Summary of changes in tzdata2018c (2018-01-22 23:00:44 -0800):
Summary of changes in tzdata2018b (2018-01-17 23:24:48 -0800)

Import tzdata2018c from ftp://ftp.iana.org/tz/releases/tzdata2018c.tar.gz

Summary of changes in tzdata2018c (2018-01-22 23:00:44 -0800):
Summary of changes in tzdata2018b (2018-01-17 23:24:48 -0800):
Summary of changes in tzdata2018a (2018-01-12 22:29:21 -0800):

2018a and 2018b were (kind of) released, but never announced.
Some "issues" were found with them that caused the relatively
quick updates...

The updates are from the previous version (2017c) to the
current one (2018c) - that 2018a & 2018b intervened is best
forgotten... (changes in 2018a that were corrected (2018b) or
reverted (2018c) are not mentioned).

Briefly:

Sao Tome and Principe (An island nation off west coast of Equatorial Africa)
switched from +00 to +01.

Brazil's DST will now start on November's first Sunday.

Use Debian-style installation locations, instead of 4.3BSD-style.
(this does not affect NetBSD, we do not use the tzdata Makefile)

Changes to past and future time stamps

Sao Tome and Principe switched from +00 to +01 on 2018-01-01 at
01:00. (Thanks to Steffen Thorsen and Michael Deckers.)

Changes to future time stamps

Starting in 2018 southern Brazil will begin DST on November's
first Sunday instead of October's third Sunday. (Thanks to
Steffen Thorsen.)

Changes to past time stamps

Japanese DST transitions (1948-1951) were Sundays at 00:00, not
Saturdays or Sundays at 02:00. (Thanks to Takayuki Nikai.)

A discrepancy of 4 s in timestamps before 1931 in South Sudan has
been corrected. The 'backzone' and 'zone.tab' files did not agree
with the 'africa' and 'zone1970.tab' files. (Problem reported by
Michael Deckers.)

The abbreviation invented for Bolivia Summer Time (1931-2) is now
BST instead of BOST, to be more consistent with the convention
used for Latvian Summer Time (1918-9) and for British Summer Time.

show more ...

Import tzdata2017c from ftp://ftp.iana.org/tz/releases/tzdata2017c.tar.gz

Northern Cyprus switches from +03 to +02/+03 on 2017-10-29.
Fiji ends DST 2018-01-14, not 2018-01-21.
Namibia switc

Import tzdata2017c from ftp://ftp.iana.org/tz/releases/tzdata2017c.tar.gz

Northern Cyprus switches from +03 to +02/+03 on 2017-10-29.
Fiji ends DST 2018-01-14, not 2018-01-21.
Namibia switches from +01/+02 to +02 on 2018-04-01.
Sudan switches from +03 to +02 on 2017-11-01.
Tonga likely switches from +13/+14 to +13 on 2017-11-05.
Turks & Caicos switches from -04 to -05/-04 on 2018-11-04.
Some corrections to (mostly ancient) historical data.

show more ...

Import tzdata2017b from ftp://ftp.iana.org/tz/releases/tzdata2017b.tar.gz

Summary of changes in tzdata2017b (2017-03-17 07:30:38 -0700):
Haiti resumed observance of DST in 2017 (on Mar 12)

Import tzdata2017b from ftp://ftp.iana.org/tz/releases/tzdata2017b.tar.gz

Summary of changes in tzdata2017b (2017-03-17 07:30:38 -0700):
Haiti resumed observance of DST in 2017 (on Mar 12)

Liberia changed from -004430 to +00 on 1972-01-07, not 1972-05-01.
Use "MMT" to abbreviate Liberia's time zone before 1972,
as "-004430" (tzdata2016a) is one byte over the POSIX limit.

show more ...

Import tzdata2017a from ftp://ftp.iana.org/tz/releases/tzdata2017a.tar.gz

Summary of changes in tzdata2017a (2017-02-28 00:05:36 -0800):

Briefly: Southern Chile moves from -04/-03 to -03, and Mon

Import tzdata2017a from ftp://ftp.iana.org/tz/releases/tzdata2017a.tar.gz

Summary of changes in tzdata2017a (2017-02-28 00:05:36 -0800):

Briefly: Southern Chile moves from -04/-03 to -03, and Mongolia
discontinues DST.

Changes to future time stamps

Mongolia no longer observes DST.
Chile's Region of Magallanes moves from -04/-03 to -03 year-round.

Changes to past time stamps

Fix many entries for historical time stamps for Europe/Madrid
before 1979, to agree with tables compiled by Pere Planesas of the
National Astronomical Observatory of Spain. As a side effect,
this changes some time stamps for Africa/Ceuta before 1929, which
are probably guesswork anyway.

Ecuador observed DST from 1992-11-28 to 1993-02-05.

Asia/Atyrau and Asia/Oral were at +03 (not +04) before 1930-06-21.

Changes to past and future time zone abbreviations

Switch to numeric time zone abbreviations for South America, as
part of the ongoing project of removing invented abbreviations.

For Alaska time from 1900 through 1967, instead of "CAT" use the
abbreviation "AST", the abbreviation commonly used at the time
(Atlantic Standard Time had not been standardized yet). Use "AWT"
and "APT" instead of the invented abbreviations "CAWT" and "CAPT".

Use "CST" and "CDT" instead of invented abbreviations for Macau
before 1999 and Taiwan before 1938, and use "JST" instead of the
invented abbreviation "JCST" for Japan and Korea before 1938.

Change to database entry category

Move the Pacific/Johnston link from 'australasia' to 'backward',
since Johnston is now uninhabited.

show more ...

Import tzdata2016h from ftp://ftp.iana.org/tz/releases/tzdata2016h.tar.gz

Summary of changes in tzdata2016h (2016-10-19 23:17:57 -0700):

Asia/Gaza and Asia/Hebron end of summer time for 2016 is
2

Import tzdata2016h from ftp://ftp.iana.org/tz/releases/tzdata2016h.tar.gz

Summary of changes in tzdata2016h (2016-10-19 23:17:57 -0700):

Asia/Gaza and Asia/Hebron end of summer time for 2016 is
2016-10-29 at 01:00 rather than 2016-10-21 at 00:00 (which
is within hours after this update). Guess that future
end dates will be the last Sat of October.

Corrected some historic time (and one date) transition
times for Turkey (all 1990 or before.)

Switch Sri-Lanka to use numeric abbreviation for time zone
as the tzdata invented one is not correct, and the correct
one seems not to be widely used.

show more ...

Import tzdata2016g from ftp://ftp.iana.org/tz/releases/tzdata2016g.tar.gz

Summary of changes in tzdata2016g (2016-09-13 08:56:38 -0700):
Timezone switch in Turkey (summer time becomes standard time

Import tzdata2016g from ftp://ftp.iana.org/tz/releases/tzdata2016g.tar.gz

Summary of changes in tzdata2016g (2016-09-13 08:56:38 -0700):
Timezone switch in Turkey (summer time becomes standard time)
Transition time corrections for historic timestamps in
America/Los_Angeles
zones using USSR rules in early 20th century
Some (more) time zone abbreviations converted to numeric form
Asia/Rangoon becomes Asia/Yangon (with backward compat link)

show more ...

Import tzdata2016f from ftp://ftp.iana.org/tz/releases/tzdata2016f.tar.gz

Summary of changes in tzdata2016f (2016-07-05 16:26:51 +0200):
* The Egyptian government changed its mind on short notice,

Import tzdata2016f from ftp://ftp.iana.org/tz/releases/tzdata2016f.tar.gz

Summary of changes in tzdata2016f (2016-07-05 16:26:51 +0200):
* The Egyptian government changed its mind on short notice, and
Africa/Cairo will not introduce DST starting 2016-07-07 after all.
* Asia/Novosibirsk switches from +06 to +07 on 2016-07-24 at 02:00.
* Asia/Novokuznetsk and Asia/Novosibirsk now use numeric time zone
abbreviations instead of invented ones.
* Europe/Minsk's 1992-03-29 spring-forward transition was at 02:00 not 00:00.

Summary of changes in tzdata2016e (2016-06-14 08:46:16 -0700):
* Africa/Cairo observes DST in 2016 from July 7 to the end of October.
(change obsoleted by 2016f)
* Locations while uninhabited now use '-00', not 'zzz', as a
placeholder time zone abbreviation.
* Asia/Baku's 1992-09-27 transition from +04 (DST) to +04 (non-DST) was
at 03:00, not 23:00 the previous day.
* zic now outputs a dummy transition at time 2**31 - 1 in zones
whose POSIX-style TZ strings contain a '<'.
* Changes affecting documentation and commentary.

show more ...

Import tzdata2016d from ftp://ftp.iana.org/tz/releases/tzdata2016d.tar.gz

Summary of changes in tzdata2016d (2016-04-17 22:50:29 -0700):
* America/Caracas switches from -0430 to -04 on 2016-05-01

Import tzdata2016d from ftp://ftp.iana.org/tz/releases/tzdata2016d.tar.gz

Summary of changes in tzdata2016d (2016-04-17 22:50:29 -0700):
* America/Caracas switches from -0430 to -04 on 2016-05-01 at 02:30.
* Asia/Magadan switches from +10 to +11 on 2016-04-24 at 02:00.
* New zone Asia/Tomsk, split off from Asia/Novosibirsk.
* New zone Europe/Kirov, split off from Europe/Volgograd.
* Russia and nearby locations had daylight-saving transitions on
1992-03-29 at 02:00 and 1992-09-27 at 03:00, instead of on
1992-03-28 at 23:00 and 1992-09-26 at 23:00.
* Many corrections to historical time in Kazakhstan from 1991
through 2005.
* Mention Internet RFCs 7808 (TZDIST) and 7809 (CalDAV time zone references).

Summary of changes in tzdata2016c (2016-03-23 00:51:27 -0700):
* Azerbaijan no longer observes DST.
* Chile reverts from permanent to seasonal DST.
* Europe/Kaliningrad and Europe/Vilnius changed from +03/+04 to
+02/+03 on 1989-03-26, not 1991-03-31.
* Several updates and URLs for historical and proposed Russian changes.

show more ...

Import tzdata2016b from ftp://ftp.iana.org/tz/releases/tzdata2016b.tar.gz

Summary of changes in tzdata2016b (2016-03-12 17:30:14 -0800):
* New zones Europe/Astrakhan and Europe/Ulyanovsk for Astra

Import tzdata2016b from ftp://ftp.iana.org/tz/releases/tzdata2016b.tar.gz

Summary of changes in tzdata2016b (2016-03-12 17:30:14 -0800):
* New zones Europe/Astrakhan and Europe/Ulyanovsk for Astrakhan and
Ulyanovsk Oblasts, Russia, both of which will switch from +03 to +04 on
2016-03-27 at 02:00 local time.
* As a trial of a new system that needs less information to be made up,
the new zones use numeric time zone abbreviations like "+04"
instead of invented abbreviations like "ASTT".
* Haiti will not observe DST in 2016.
* Palestine's spring-forward transition on 2016-03-26 is at 01:00, not 00:00.
* Europe/Chisinau observed DST during 1990, and switched from +04 to
+03 at 1990-05-06 02:00, instead of switching from +03 to +02.
* 1991 abbreviations in Europe/Samara should be SAMT/SAMST, not
KUYT/KUYST.
* tzselect's diagnostics and checking, and checktab.awk's checking,
have been improved.
* tzcode now builds under MinGW.
* tzselect now tests Julian-date TZ settings more accurately.
* Comments in zone tables have been improved.
* tzselect again limits its menu comments so that menus fit on a
24x80 alphanumeric display.
* A new web page tz-how-to.html.
* In the Theory file, the description of possible time zone abbreviations in
tzdata has been cleaned up, as the old description was unclear and
inconsistent.

Summary of changes in tzdata2016a (2016-01-26 23:28:02 -0800):
* America/Cayman will not observe daylight saving this year after all.
* Asia/Chita switches from +0800 to +0900 on 2016-03-27 at 02:00.
* Asia/Tehran now has DST predictions for the year 2038 and later,
to be March 21 00:00 to September 21 00:00.
* America/Metlakatla switched from PST all year to AKST/AKDT on
2015-11-01 at 02:00.
* America/Santa_Isabel has been removed, and replaced with a
backward compatibility link to America/Tijuana.
* Asia/Karachi's two transition times in 2002 were off by a minute.
* Changes affecting documentation and commentary.

Summary of changes in tzdata2015g (2015-10-01 00:39:51 -0700):
* Turkey's 2015 fall-back transition is scheduled for Nov.
* Norfolk moves from +1130 to +1100 on 2015-10-04 at 02:00 local time.
* Fiji's 2016 fall-back transition is scheduled for January 17, not 24.
* Fort Nelson, British Columbia will not fall back on 2015-11-01.
* Norfolk observed DST from 1974-10-27 02:00 to 1975-03-02 02:00.
* Changes affecting documentation.

show more ...

Import tzdata2015f from ftp://ftp.iana.org/tz/releases/tzdata2015f.tar.gz

Summary of changes in tzdata2015f (2015-08-10 18:06:56 -0700):
* North Korea switches to +0830 on 2015-08-15.
* Uruguay

Import tzdata2015f from ftp://ftp.iana.org/tz/releases/tzdata2015f.tar.gz

Summary of changes in tzdata2015f (2015-08-10 18:06:56 -0700):
* North Korea switches to +0830 on 2015-08-15.
* Uruguay no longer observes DST.
* Moldova starts and ends DST at 00:00 UTC, not at 01:00 UTC.
* The two characters '%z' in a zone format now stand for the UTC
offset, e.g., '-07' for seven hours behind UTC and '+0530' for
five hours and thirty minutes ahead.
* Comments for America/Halifax and America/Glace_Bay have been improved.
* Data entries have been simplified for Atlantic/Canary, Europe/Simferopol,
Europe/Sofia, and Europe/Tallinn.
* Changes affecting documentation.

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