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Timezone Data Versions in the JRE Software

By the Java SE Platform Support Team, July 2019

This table shows which version of the Timezone data is included in the different releases of the Java Development Kit (JDK) software and the TZUpdater tool. Further information about the contents of the timezone data releases is contained in the related request for enhancement (RFE) for that release. Where a major timezone change has been included in a timezone data release, this is described in the last column.

Latest TZdata release can be found from IANA TZdata page.

Since the release of TZUpdater v2.0, users can now update the tzdata version in their JDK/JRE using data obtained directly from the IANA tzdata releases. Refer to the TZUpdater README for more details.

Timezone Tzdata Version Introduced in JRE Update Release TZUpdater Version Main Changes in this Timezone Data Release
tzdata2018i 12.0.2
11.0.4
8u221
7u231
N/A São Tomé and Príncipe switches from +01 to +00 on 2019-01-01.
tzdata2018h N/A Qyzylorda, Kazakhstan moved from +06 to +05 on 2018-12-21.
New zone Asia/Qostanay because Qostanay, Kazakhstan didn't move.
Metlakatla, Alaska observes PST this winter only.
Guess Morocco will continue to adjust clocks around Ramadan.
Add predictions for Iran from 2038 through 2090.

Qyzylorda (aka Kyzylorda) oblast in Kazakhstan moved from +06 to +05 on 2018-12-21
Metlakatla moved from Alaska to Pacific standard time on 2018-11-04.
Kwajalein's 1993-08-20 transition from -12 to +12 was at 24:00, not 00:00
Nauru's 1979 transition was on 02-10 at 02:00, not 05-01 at 00:00.
Guam observed DST irregularly from 1959 through 1977.
Hong Kong observed DST in 1941 starting 06-15 (not 04-01), then on 10-01 changed standard time to +08:30 (not +08). Its transition back to +08 after WWII was on 1945-09-15, not the previous day.
Its 1904-10-30 change took effect at 01:00 +08 (not 00:00 LMT).
tzdata2018g 11.0.2
8u201
7u211
N/A Morocco switches to permanent +01 on 2018-10-27.
Morocco switches from +00/+01 to permanent +01 effective 2018-10-27, so its clocks will not fall back on 2018-10-28 as previously scheduled.

Changes to past time zone abbreviations
Change HDT to HWT/HPT for WWII-era abbreviations in Hawaii.
This reverts to 2011h, as the abbreviation change in 2011i was likely inadvertent.
tzdata2018f 11.0.2
8u201
7u211
N/A Changes to future timestamps:
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

Changes to past timestamps:
The 2018-05-05 North Korea 30-minute time zone change took place at 23:30 the previous day, not at 00:00 that day.
China's 1988 spring-forward transition was on April 17, not April 10. Its DST transitions in 1986/91 were at 02:00, not 00:00.
Fix several issues for Macau before 1992.
tzdata2018e 10.0.2
8u181
7u191
6u201
N/A North Korea switches back to +09 on 2018-05-05.
tzdata2018d N/A Palestine starts DST a week earlier in 2018.
Palestine starts DST on March 24, not March 31.
tzdata2018c 10
8u172
7u181
6u191
N/A São Tomé and Príncipe 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.
New zic option -t.
tzdata2018b N/A
tzdata2018a N/A
tzdata2017c 9.0.4 8u161
7u171
6u181
N/A 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.
A new file tzdata.zi now holds a small text copy of all data.
The zic input format has been regularized slightly.
tzdata2017b 8u141
7u151
6u161
N/A Haiti resumed observance of DST in 2017.
tzdata2017a 8u131
7u141
6u151
N/A Mongolia no longer observes DST.
Chile's Region of Magallanes moves from -04/-03 to -03 year-round.
tzdata2016j N/A Saratov, Russia switches from +03 to +04 on 2016-12-04 at 02:00. This hives off a new zone Europe/Saratov from Europe/Volgograd
The new zone Asia/Atyrau for Atyraū Region, Kazakhstan, is like Asia/Aqtau except it switched from +04/+05 to +05/+06 in spring 1999, not fall 1994.
tzdata2016i 8u121
7u131
6u141
N/A Pacific/Tongatapu begins DST on 2016-11-06 at 02:00, ending on 2017-01-15 at 03:00. Assume future observances in Tonga will be from the first Sunday in November through the third Sunday in January, like Fiji.
Northern Cyprus is now +03 year round, causing a split in Cyprus time zones starting 2016-10-30 at 04:00. This creates a zone Asia/Famagusta
Antarctica/Casey switched from +08 to +11 on 2016-10-22.
tzdata2016h N/A Asia/Gaza and Asia/Hebron end DST on 2016-10-29 at 01:00, not 2016-10-21 at 00:00. Predict that future fall transitions will be on the last Saturday of October at 01:00, which is consistent with predicted spring transitions on the last Saturday of March.
In Turkey, transitions in 1986-1990 were at 01:00 standard time not at 02:00, and the spring 1994 transition was on March 20, not March 27.
Asia/Colombo now uses numeric time zone abbreviations like "+0530" instead of alphabetic ones like "IST" and "LKT".
tzdata2016g N/A Turkey switched from EET/EEST (+02/+03) to permanent +03, effective 2016-09-07.
New leap second 2016-12-31 23:59:60 UTC as per IERS Bulletin C 52.
tzdata2016f 8u111
7u121
6u131
N/A 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.
tzdata2016e N/A Africa/Cairo observes DST in 2016 from July 7 to the end of October. Guess October 27 and 24:00 transitions.
Asia/Baku's 1992-09-27 transition from +04 (DST) to +04 (non-DST) was at 03:00, not 23:00 the previous day.
tzdata2016d 8u101
7u111
6u121
N/A 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. It covers Tomsk Oblast, Russia, which switches from +06 to +07 on 2016-05-29 at 02:00.
New zone Europe/Kirov, split off from Europe/Volgograd. It covers Kirov Oblast, Russia, which switched from +04/+05 to +03/+04 on 1989-03-26 at 02:00, roughly a year after Europe/Volgograd made the same change.
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. Replace Kazakhstan's invented time zone abbreviations with numeric abbreviations.
tzdata2016c N/A 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. Europe/Volgograd changed from +04/+05 to +03/+04 on 1988-03-27, not 1989-03-26.
tzdata2016b N/A 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. New zone Asia/Barnaul for Altai Krai and Altai Republic, Russia, which will switch from +06 to +07 on the same date and local time. Also, Asia/Sakhalin moves from +10 to +11 on 2016-03-27 at 02:00.
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.
tzdata2016a 8u91
7u101
6u115
N/A 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.
tzdata2015g 8u71
7u95
6u111
N/A Turkey's 2015 fall-back transition is scheduled for Nov. 8, not Oct. 25.
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. It has effectively been on MST (-0700) since it advanced its clocks on 2015-03-08. New zone America/Fort_Nelson.
tzdata2015f 8u65
7u91
6u105
N/A North Korea switches to +0830 on 2015-08-15.The abbreviation remains "KST".
Uruguay no longer observes DST.
Moldova starts and ends DST at 00:00 UTC, not at 01:00 UTC.
tzdata2015e 8u60 N/A Morocco will suspend DST from 2015-06-14 03:00 through 2015-07-19 02:00, not 06-13 and 07-18 as guessed.
tzdata2015d 8u51
7u85
6u101
N/A Egypt will not observe DST in 2015 and will consider canceling it permanently. For now, assume no DST indefinitely.
America/Whitehorse switched from UTC-9 to UTC-8 on 1967-05-28, not 1966-07-01. Also, Yukon's time zone history is documented better.
The abbreviations for Hawaii-Aleutian standard and daylight times have been changed from HAST/HADT to HST/HDT, as per US Government Printing Office style. This affects only America/Adak since 1983, as America/Honolulu was already using the new style.
tzdata2015c N/A Egypt's spring-forward transition is at 24:00 on April's last Thursday, not 00:00 on April's last Friday. 2015's transition will therefore be on Thursday, April 30 at 24:00, not Friday, April 24 at 00:00. Similar fixes apply to 2026, 2037, 2043, etc.
tzdata2015b N/A Mongolia will start observing DST again this year, from the last Saturday in March at 02:00 to the last Saturday in September at 00:00.
Palestine will start DST on March 28, not March 27. Also, correct the fall 2014 transition from September 26 to October 24. Adjust future predictions accordingly.
The 1982 zone shift in Pacific/Easter has been corrected, fixing a 2015a regression.
Some more zones have been turned into links, when they differed from existing zones only for older time stamps. As usual, these changes affect UTC offsets in pre-1970 time stamps only. Their old contents have been moved to the 'backzone' file. The affected zones are: America/Antigua, America/Cayman, Pacific/Midway, and Pacific/Saipan.
Correct the 1992-2010 DST abbreviation in Volgograd from "MSK" to "MSD".
tzdata2015a 8u45
7u80
6u95
5.0u85
2.0.0
1.4.11
The Mexican state of Quintana Roo, represented by America/Cancun, will shift from Central Time with DST to Eastern Time without DST on 2015-02-01 at 02:00.
Chile will not change clocks in April or thereafter; its new standard time will be its old daylight saving time. This affects America/Santiago, Pacific/Easter, and Antarctica/Palmer.
New leap second 2015-06-30 23:59:60 UTC as per IERS Bulletin C 49.
tzdata2014j 8u31
7u75
6u91
5.0u81
1.4.10 Turks & Caicos' switch from US eastern time to UTC-4 year-round did not occur on 2014-11-02 at 02:00. It's currently scheduled for 2015-11-01 at 02:00.
tzdata2014i 1.4.9 Pacific/Fiji will observe DST from 2014-11-02 02:00 to 2015-01-18 03:00.
A new Zone Pacific/Bougainville, for the part of Papua New Guinea that plans to switch from UTC+10 to UTC+11 on 2014-12-28 at 02:00.
Since Belarus is not changing its clocks even though Moscow is, the time zone abbreviation in Europe/Minsk is changing from FET to its more-traditional value MSK on 2014-10-26 at 01:00.
The new abbreviation IDT stands for the pre-1976 use of UT+8 in Indochina, to distinguish it better from ICT (UT+7).
tzdata2014h 1.4.8 America/Jamaica's 1974 spring-forward transition was Jan. 6, not Apr. 28.
Asia/Novokuznetsk switched from LMT (not "NMT") on 1924-05-01, not 1920-01-06.
Some more zones have been turned into links, when they differed from existing zones only for older time stamps. As usual, these changes affect UTC offsets in pre-1970 time stamps only. Their old contents have been moved to the 'backzone' file. The affected zones are: Africa/Blantyre, Africa/Bujumbura, Africa/Gaborone, Africa/Harare, Africa/Kigali, Africa/Lubumbashi, Africa/Lusaka, Africa/Maseru, and Africa/Mbabane.
tzdata2014g 1.4.7 Turks & Caicos is switching from US eastern time to UTC-4 year-round, modeled as a switch from EST/EDT to AST on 2014-11-02 at 02:00.
Time in Russia or the USSR before 1926 or so has been corrected by a few seconds in the following zones: Asia/Irkutsk, Asia/Krasnoyarsk, Asia/Omsk, Asia/Samarkand, Asia/Tbilisi, Asia/Vladivostok, Asia/Yakutsk, Europe/Riga, Europe/Samara. For Asia/Yekaterinburg the correction is a few minutes.
The Portuguese decree of 1911-05-26 took effect on 1912-01-01. This affects 1911 time stamps in Africa/Bissau, Africa/Luanda, Atlantic/Azores, and Atlantic/Madeira. Also, Lisbon's pre-1912 GMT offset was -0:36:45 (rounded from -0:36:44.68), not -0:36:32.
Asia/Dhaka ended DST on 2009-12-31 at 24:00, not 23:59.
tzdata2014f 1.4.6 Russia will subtract an hour from most of its time zones on 2014-10-26 at 02:00 local time. There are a few exceptions: Magadan Oblast (Asia/Magadan) and Zabaykalsky Krai are subtracting two hours; conversely, Chukotka Autonomous Okrug (Asia/Anadyr), Kamchatka Krai (Asia/Kamchatka), Kemerovo Oblast (Asia/Novokuznetsk), and the Samara Oblast and the Udmurt Republic (Europe/Samara) are not changing their clocks. The changed zones are Europe/Kaliningrad, Europe/Moscow, Europe/Simferopol, Europe/Volgograd, Asia/Yekaterinburg, Asia/Omsk, Asia/Novosibirsk, Asia/Krasnoyarsk, Asia/Irkutsk, Asia/Yakutsk, Asia/Vladivostok, Asia/Khandyga, Asia/Sakhalin, and Asia/Ust-Nera; Asia/Magadan will have two hours subtracted; and Asia/Novokuznetsk's time zone abbreviation is affected, but not its UTC offset. Two zones are added: Asia/Chita (split from Asia/Yakutsk, and also with two hours subtracted) and Asia/Srednekolymsk (split from Asia/Magadan, but with only one hour subtracted).
Australian eastern time zone abbreviations are now AEST/AEDT not EST, and similarly for the other Australian zones. That is, for eastern standard and daylight saving time the abbreviations are AEST and AEDT instead of the former EST for both; similarly, ACST/ACDT, ACWST/ACWDT, and AWST/AWDT are now used instead of the former CST, CWST, and WST. This change does not affect UTC offsets, only time zone abbreviations.
Asia/Novokuznetsk shifts from NOVT to KRAT (remaining on UTC+7) effective 2014-10-26 at 02:00 local time.
The time zone abbreviation for Xinjiang Time (observed in Ürümqi) has been changed from URUT to XJT.
Prefer MSK/MSD for Moscow time in Russia, even in other cities. Similarly, prefer EET/EEST for eastern European time in Russia.
Change time zone abbreviations in (western) Samoa to use "ST" and "DT" suffixes, as this is more likely to match common practice. Prefix "W" to (western) Samoa time when its standard-time offset disagrees with that of American Samoa.
America/Metlakatla now uses PST, not MeST, to abbreviate its time zone.
Time zone abbreviations have been updated for Japan's two time zones used 1896-1937. JWST now stands for Western Standard Time, and JCST for Central Standard Time (formerly this was CJT). These abbreviations are now used for time in Korea, Taiwan, and Sakhalin while controlled by Japan.
tzdata2014e 1.4.5 Egypt's 2014 Ramadan-based transitions are June 26 and July 31 at 24:00. Guess that from 2015 on Egypt will temporarily switch to standard time at 24:00 the last Thursday before Ramadan, and back to DST at 00:00 the first Friday after Ramadan.
Similarly, Morocco's are June 28 at 03:00 and August 2 at 02:00. Guess that from 2015 on Morocco will temporarily switch to standard time at 03:00 the last Saturday before Ramadan, and back to DST at 02:00 the first Saturday after Ramadan.
The abbreviation "MSM" (Moscow Midsummer Time) is now used instead of "MSD" for Moscow's double daylight time in summer 1921. Also, a typo "VLASST" has been repaired to be "VLAST" for Vladivostok summer time in 1991.
tzdata2014d zic no longer generates files containing time stamps well before the Big Bang.
This works around GNOME bug 730332
tzdata2014c 8u11
7u65
6u81
5.0u71
1.4.4 Egypt observes DST starting 2014-05-15 at 24:00.
Details have not been announced, except that DST will not be observed during Ramadan. Guess that DST will stop during the same Ramadan dates as Morocco, and that Egypt's future spring and fall transitions will be the same as 2010 when it last observed DST, namely April's last Friday at 00:00 to September's last Thursday at 23:00 standard time.
Also, guess that Ramadan transitions will be at 00:00 standard time.
tzdata2014b 7u60 1.4.3 Crimea switches to Moscow time on 2014-03-30 at 02:00 local time.
tzdata2014a 1.4.2 Turkey begins DST on 2014-03-31
Fiji ended DST on 2014-01-19 at 02:00, not the previously-scheduled 03:00.
Ukraine switched from Moscow to Eastern European time on 1990-07-01 (not 1992-01-01), and observed DST during the entire next winter.
In 1988 Israel observed DST from 04-10 to 09-04, not 04-09 to 09-03.
tzdata2013i 8u5
7u55
6u75
5.0u65
1.3.62 Jordan switches back to standard time at 00:00 on December 20, 2013. The 2006-2011 transition schedule is planned to resume in 2014.
In 2004, Cuba began DST on March 28, not April 4.
tzdata2013h 8
7u51 6u71
5.0u61
1.3.61 Libya has switched its time zone back to UTC+2 without DST, instead of UTC+1 with DST.
Western Sahara (Africa/El_Aaiun) uses Morocco's DST rules.
Acre and (we guess) western Amazonas will switch from UTC-4 to UTC-5 on 2013-11-10. This affects America/Rio_Branco and America/Eirunepe.
Add entries for DST transitions in Morocco in the year 2038.
tzdata2013g 1.3.60 Morocco now observes DST from the last Sunday in March to the last Sunday in October, not April to September respectively.
tzdata2013f 1.3.59 Tocantins will very likely not observe DST starting this spring.
Jordan will likely stay at UTC+3 indefinitely, and will not fall back this fall.
Palestine will fall back at 00:00, not 01:00.
tzdata2013e 1.3.58 Fiji will start DST on October 27, not October 20 in 2013.
Use WIB/WITA/WIT rather than WIT/CIT/EIT for alphabetic Indonesian time zone abbreviations since 1932.
Pacific/Johnston is now a link to Pacific/Honolulu.
Change Kingston Mean Time from -5:07:12 to -5:07:11.
Change the UT offset of Bern Mean Time from 0:29:44 to 0:29:46.
Change the date of the circa-1850 Zurich transition from 1849-09-12 to 1853-07-16.
For Asia/Jakarta, use BMT (not JMT) for mean time from 1923 to 1932.
tzdata2013d 7u40
6u60 5.0u55
1.3.57 Morocco's midsummer transitions this year are July 7 and August 10,not July 9 and August 8.
Israel now falls back on the last Sunday of October.
tzdata2013c 1.3.56 Palestine observed DST starting March 29, 2013.
Changes in Paraguay's DST rules.
tzdata2013b 7u25
6u51
5.0u51
1.3.55 Haiti uses US daylight-saving rules this year, and presumably future years.
Paraguay will end DST on March 24 this year.
Morocco does not observe DST during Ramadan;try to predict Ramadan in Morocco as best we can.
tzdata2013a 1.3.54 Chile's 2013 rules, and we guess rules for 2014 and later, will be the same as 2012, namely Apr Sun>=23 03:00 UTC to Sep Sun>=2 04:00 UTC.
New Zones Asia/Khandyga, Asia/Ust-Nera, Europe/Busingen.
tzdata2012j 1.3.53 Libya moved to CET on Nov 10th weekend, but with DST planned next year.
tzdata2012i 7u10
6u38
1.3.52 DST changes in Cuba to first Sun of Nov.
tzdata2012h 1.3.51 Bahia no longer has DST.
Tocantins has DST.
Israel has new DST rules next year.
Jordan stays on DST this winter.
tzdata2012g 1.3.50 Changes in DST time for Samoa and Palestine in fall 2012.
tzdata2012f 1.3.49 Changes in DST time for Fiji which will is October 21 through January 20 this year.
tzdata2012e Changes in DST time for Tokelau which is now UTC+13, not UTC+14.
tzdata2012d 1.3.48 Changes in DST time for Morocco. For 2012 only, Morocco will leave DST on July20th and re-enter it on Aug 20th.
tzdata2012c 7u4 6u33
5.0u36
1.3.47 Changes in summer time for Morocco (to start late April 2012)
Changes for 2012 for Gaza & the West Bank (Hebron) and Syria.
Haiti following US/Canada rules for 2012.
tzdata2012b 1.3.46 The start date for summer time in Cuba this year.
The excess tab from the zone.tab file is also gone.
tzdata2012a Armenia has abolished summer time.
Tokelau copied Samoa and swapped sides of the International Data line last December.
Leap Second will occur 2012-06-30 at 23:59:60 UTC.
New zone America/Creston created for an area in British Columbia
Chile has extended Summer time in the 2011/2 summer.
The Falkland Islands now have it permanently (continuing the 2011 experiment.) This "permanently" is a guess, it apparently is certain for 2012 (as certain as these things ever are) and considered likely into the future.
tzdata2011n 1.3.45 Changes in DST rule for Cuba, Tiraspol (Pridnestrovian Moldavian Republic) and Fiji.
tzdata2011m 1.3.44 Changes in DST rule for Ukraine, Tiraspol (Moldovia) and Bahia (Brazil).
tzdata2011l 7u2
6u30 5.0u33
1.3.43 Changes in DST rule for West Bank.
Changes in DST rule for Fiji.
tzdata2011k 1.3.42 Palestine suspends DST during Ramadan in 2011.
Gaza and Hebron split in 2011, leading to a new Asia/Hebron zone.
Belarus adopts permanent DST in 2011.
Given the Belarus change, "Russia" rules changed to reflect end of use in 2010.
Updated comment on Newfoundland's 2011 change of time of day when DST starts and ends.
tzdata2011j Samoa uses DST in 2011-2012.
Four instances of 2:44:45 changed to 2:45 in Africa zone.
tzdata2011i 1.3.41 Add Africa/Juba (South Sudan) zone.
Samoa skips over 2011-12-30.
Use KALT as abbreviation for Europe/Kalinigrad from spring 2011 forward.
Newfoundland changes time of day for DST start and end to 2:00 a.m. starting fall 2011 and forward.
Change America/Resolute use of EST to 2006-2007 only.
Assume Metlakatla abandoned use of daylight saving as a result of its 1983 vote.
Avoid unnecessary use of US rule in America/Honolulu.
tzdata2011h 1.3.40 Remove unused "RussAQ" rules.
Russia abandons DST in 2011
Change AN (Netherlands Antilles) to CW (Curacao)
tzdata2011g 7
6u26
5.0u31
1.3.39 Change of DST rules for Egyptto abandon DST this year.
tzdata2011f Change of temporary DST rules for Falkland Islands.
tzdata2011e 5.0u30 1.3.38 Add start and end of DST in 2011 in Morocco.
Change end and start of DST in 2011 in Chile.
tzdata2011d 1.3.37 Change end of DST in Samoa in 2011.
Change start of DST in Cuba in 2011.
Turkish one-day delay in the start of DST.
tzdata2011c 1.3.36 Delay end of DST in 2011 until first Sunday in April.
Affect current time stamps in Chile and Annette Island, Alaska.
tzdata2011b 6u25
5.0u29
1.3.35 Added America/North_Dakota/Beulah (Mercer County, North Dakota, moved from Mountain to Central time at end of DST in 2010)
tzdata2011a australasia - Simplification and gratuitous optimization of South Australia rules.
northamerica - Changes to Hawaiian time history (from an article by Schmitt and Cox): abandoned local mean time in 1986 rather than 1900; used DST during World War II.
tzdata2010o 6u24
5.0u28
1.3.34 Fiji moving end of DST from March 27 to March 6 in 2011.
tzdata2010n Change end of DST in Samoa in 2011 from 2011-04-03 0:00 to 2011-04-03 1:00
tzdata2010m No DST in Hong Kong in 1977
tzdata2010l 6u22
5.0u26
1.3.33 Change Cairo's 2010 reversion to DST from the midnight between September 8 and 9 to the midnight between September 9 and 10.
Change Gaza's 2010 return to standard time to the midnight between August 10 and 11.
tzdata2010k 1.3.32 Changes to DST rule for Egypt in 2010.
tzdata2010j New "Bahia_Banderas" time zone added
tzdata2010i 6u21
5.0u25
1.3.31 Changes to DST rule for Morocco in 2010.
Changes to Taipei DST in 1979; remove Taipei DST in 1980.
Changes to San Luis on "permanent" DST as of 2010.
tzdata2010h 1.3.30 Correction in DST rules for DhakaChanges to Tunisia DST. No DST 2010 and forward
Changes to Pakistan DST. No DST 2010 and forward
tzdata2010g Changes in Bangladesh DST. No DST in 2010 and forward.
Gaza DST starts last Saturday in March at 12:01 a.m. in 2010 and forward.
Kamchaatka changes to Moscow+8 on 2010-03-28.
Anadyr changes to Moscow+8 on 2010-03-28.
Samara changes to Moscow on 2010-03-28.
tzdata2010f 1.3.29 Changes to Australian stations
Change Syria DST start from last Friday in March to first Friday in April in 2010 and forward
Correct 2010 Samoa DST start date
tzdata2010e 1.3.28 Correction in DST rules for Dhaka
tzdata2010d 1.3.28 Change time of day when Bangladesh DST starts and ends.
Change end of DST in Fiji in 2010.
Remove DST in Samoa in 2009/2010.
Add DST in Fiji in 2010/2011.
Change end date of Chile DST for 2010 only.
Restate Paraguay DST rule for consistency.
tzdata2010c 1.3.27 Changes to Paraguay DST rules from 2010 forward
tzdata2010b 6u20
5.0u24
1.3.26 DST rule change for Mexico
tzdata2009u 1.3.25 DST rule change for Bangladesh
tzdata2009t No changes significant to JRE timezone handling are present in the Olson tzdata 2009t release.
tzdata2009s 6u18
5.0u23
1.3.24 Fiji's use of DST in 2009-2010
tzdata2009r 1.3.23 "antarctica" file has updates to thee local times of Australian research stations and there are two additions to the "tz-link.htm" file.
tzdata2009q 1.3.22 Change end of DST in Syria in 2009 and forward from November 1 to last Friday in October.
Changes to past Hong Kong transitions.
Add Asia/Novokuznetsk
tzdata2009p 1.3.21 Most of Argentina is not using DST in 2009-2010
tzdata2009o Bangladesh does not go off DST in 2009
Pakistan goes off DST November 1 2009 (and in future years)
tzdata2009n End of DST in Pakistan in 2009
tzdata2009m 6u17
5.0u22
1.3.20 DST rule changes for Samoa and Palestine
tzdata2009l 5.0u21 1.3.19 End of DST in Egypt in 2009
tzdata2009k 1.3.18 Asia - Arbitrarily cut off Dhaka DST at end of 2009

Africa - Change Mauritius to reflect that 2008-2009 DST experiment is not repeated (and to change end of DST in 2009 from 2:00 standard time to 2:00 local time)

Europe - Update URL for Directive 2000/84/EC on summer-time arrangements
tzdata2009j 1.3.17 Bangladesh DST start moved 1 hour earlier from midnight 20th June to 23:00 19th June.
tzdata2009i 6u15
5.0u20
1.3.16 Changes in DST for Bangladesh this year (2009). Jordan changes in 2009h release have not yet been implemented. Will be present in later release. No effect until 2011.
tzdata2009h The start of DST in Jordan from 2002 forward is changed from 0:00 on the last Friday of the month to 24:00 on the last Thursday. * No TZUpdater tool with be released with this change.
tzdata2009g 6u14
5.0u19
1.3.15 Changes to Cairo/Egypt DST rule. For ending DST: Egypt is expected to revert to the last Thursday in September.
tzdata2009f 1.3.14 New 2009 DST rules for Pakistan. Pakistan plan to introduce DST from April 15th 2009 to October 31st 2009
tzdata2009e 1.3.13 Changes to Jordan and Palestine rules. According to the Palestine News Network, Palestinian government decided to start Daylight Time on Thursday night March 26 and continue until the night of 27 September 2009.
tzdata2009d Changes to Morocco, Tunisia, Argentina and Syria rules.The Province of San Luis, Argentina, decided that next Sunday instead of staying at UTC-03:00 they will go to UTC-04:00 until the second Saturday in October. Morocco to observe DST from 2009-06-01 00:00 to 2009-08-21 00:00. Tunisia not to observe DST for 2009. Syria to start DST on last Friday in March.
tzdata2009c Cuba will start Daylight Saving Time on midnight between Saturday, March 07, 2009 and Sunday, March 08, 2009- not on midnight March 14 / March 15 as previously thought.
tzdata2009b In the comments stating that there will be no leap second in June this year.
tzdata2009a 6u13
5.0u18
1.3.12
  • Change Resolute from Eastern Time to Eastern Standard Time
  • Change Katmandu to Kathmandu
tzdata2008i 6u11
5.0u17
1.3.11 Modification to Argentinian timezones including the creation of Argentina/Salta
tzdata2008h 1.3.10 Change Maurituis transition hours to 2:00 *standard* time Change Syrian end of DST from October 1 to November 1
tzdata2008g 1.3.9 New DST data for Brazil adopting DST from the 3rd Oct (Sunday) to the 3rd Feb (Sunday).
tzdata2008f 1.3.8
  • Mauritus — DST 2008 ff. from last Sunday in Oct .to last Sunday in Mar.
  • Morocco— End of DST 2008 ff. changed from Sept. 28 to Sept. 1
  • Gaza— End of DST 2008 ff. changed from second Thursday in Sept. to last Thursday in Aug.
  • Pakistan— End of DST 2008 only changed from Sept. 1 to Nov. 1
  • Turkey— Add comments about proposed changes in 2011
  • Argentina— Start of DST 2008 ff. changed from first to third Sunday
  • Brazil— Start of DST 2008 ff. changed from second to third Sunday
tzdata2008e 1.3.7 Mauritius's 2008 DST experiment, and some localized Brazilian time zone realignments.
tzdata2008c 6u10 1.3.6 New data for Morocco, Pakistan and Choibalsan (Mongolia). Morocco and Pakistan observe DST in 2008, and the UCT offset for Choibalsan is now 8 hours.
tzdata2008b 6u7
5.0u16
1.3.5 New data for Chile, Cuba, Argentina and Iraq: Chile DST extended until March 31st 2008 due to drought conditions; Cuba DST starts later; San Luis in Argentina changes zone; Iraq abandons DST.
tzdata2007k 6u5
5.0u15
1.3.3 New data for Argentina: at 2am local time on December 29, 2007, the DST offset moved from GMT-4 to GMT-5.
tzdata2007j 1.3.2 New data for Venezuela
tzdata2007i 1.3.1 New data for Cuba and Syria
tzdata2007h 6u4
5.0u14
1.3.0 New data for Brazil, Egypt, Gaza, Iran and Venezuela
tzdata2007g 6u3
5.0u13
1.2.2 New data for Australia (2008) and for America/Indiana
tzdata2007f 6u2 1.2.1 New data for New Zealand
tzdata2007e 5.0u12 1.2.0 New data for Syria and Honduras
tzdata2007a 6u1 1.0.1 New data for Asmara and Easter Island
tzdata2006p 5.0u11 1.0 New data for Western Australia
tzdata2006k
5.0u10
n/a New data for Honduras, Bermuda, Moncton, Blanc-Sablon, Gaza, and Cuba
tzdata2006g n/a New data for Egypt, Syria, and Uruguay
tzdata2006d 5.0u9 n/a New data for Haiti, Sri Lanka, and Canada
tzdata2006a n/a New data for America/Indiana and America/New Brunswick. See RFE for details
tzdata2005n 5.0u7 n/a New data for Uruguay and Kyrgyzstan
tzdata2005m 5.0u6 n/a Includes the USDST 2007 data

Note: Timezone data is cumulative. For example, if you have installed tzdata2007g, then you do not need to install any previous release to get all the data for New Zealand.

For More Information

Please see Readme of TZUpdater tool.

For further information about how timezone changes affect the JRE software, see Timezones, Daylight Savings Time, and the Oracle TZUpdater for the Java Runtime Environment (JRE) and Timezones and the Java Runtime Environment: Frequently Asked Questions.