Lines Matching full:to
6 New zone for Aysén Region in Chile which moves from -04/-03 to -03.
8 Changes to future timestamps
10 Chile's Aysén Region moves from -04/-03 to -03 year-round, joining
13 new zone America/Coyhaique. (Thanks to Yonathan Dossow.) Model
14 this as a change to standard offset effective 2025-03-20.
16 Changes to past timestamps
18 Iran switched from +04 to +0330 on 1978-11-10 at 24:00, not at
19 year end. (Thanks to Roozbeh Pournader.)
21 Changes to code
24 attempts to create an incorrect symlink, and no longer has a
35 Changes to future timestamps
39 (Thanks to Heitor David Pinto and Even Scharning.)
43 Changes to past timestamps
46 through 1990. (Thanks to P Chan for the heads-up and citations.)
53 Changes to data
56 research stations. (Thanks to Derick Rethans and Jule Dabars.)
58 Changes to code
71 "UTC", to help the user see that an error has occurred. (Thanks
72 to Arthur David Olson for suggesting a "wrong result".)
79 string's time zone abbreviation, now defaults to 254 not 255.
80 This helps reduce the size of internal state from 25480 to 21384
84 arbitrary limits, you can now specify TZNAME_MAXIMUM values up to
96 Changes to documentation
100 "Etc/Unknown" for an unknown or invalid timezone. (Thanks to
112 The code now conforms to RFC 8536 for early timestamps.
115 SUPPORT_C89 now defaults to 1.
117 Changes to past timestamps
122 Mongolia's time zone history. (Thanks to Heitor David Pinto.)
131 (Thanks to Heitor David Pinto.)
140 particular, the Azores and Madeira did not observe DST from 1977 to
144 (Thanks to Tim Parenti.)
146 Changes to past tm_isdst flags
149 modeled as DST, to more closely reflect how contemporaneous changes
152 Changes to data
155 (last released in the 1990s) have been moved to 'backward'.
158 Names moved to 'backward' are now links to geographical names.
173 Rearguard form still avoids %z, to support obsolescent parsers.
176 with Asia/Tashkent for future timestamps, due to Kazakhstan's
178 has been removed, as it now agrees with America/Nuuk due to
181 Changes to code
183 localtime.c now always uses a TZif file's time type 0 to handle
185 localtime.c sometimes inferred a different time type, in order to
187 is now safe to assume more recent versions of zic, there is no
188 longer a pressing need to fail to conform RFC 8536 section 3.2,
194 libraries define them, so remove them except when needed to
195 conform to earlier POSIX. These functions are dangerous as they
197 -DSUPPORT_POSIX2008 to CFLAGS.
199 The SUPPORT_C89 option now defaults to 1 instead of 0, fixing a
207 Changes to build procedure
211 The build procedure now assumes POSIX.2-1992 or later, to simplify
212 maintenance. To build on Solaris 10, the only extant system still
213 defaulting to pre-POSIX, prepend /usr/xpg4/bin to PATH.
215 Changes to documentation
219 Changes to commentary
222 colonies has been expanded with links to relevant legislation.
223 (Thanks to Tim Parenti.)
231 zic no longer pretends to support indefinite-past DST.
234 Changes to future timestamps
238 country that will transition from UTC+6 on 2024-03-01 at 00:00 to
239 join the western portion. (Thanks to Zhanbolat Raimbekov.)
242 in 2024 and 2025. (Thanks to Heba Hamad.) Change spring-forward
243 predictions to the second Saturday after Ramadan, not the first;
246 Changes to past timestamps
249 not 00:00. (Thanks to Đoàn Trần Công Danh.)
252 not 00:00. (Thanks to Chris Walton.)
256 Changes to code
258 The FROM and TO columns of Rule lines can no longer be "minimum"
272 timestamps that occur about 400 years after a switch to a time
280 Changes to build procedure
284 now in the public domain too and tends to be more up-to-date.
285 (Thanks to Martin Burnicki for liaisoning with the IERS.)
287 Changes to documentation
303 Changes to future timestamps
307 changing its time zone from -01/+00 to -02/-01 at the same moment
310 reverts to its common practice before 1981. (Thanks to Jule Dabars.)
313 correcting a typo introduced in 2023a. (Thanks to Jule Dabars.)
315 Changes to past and future timestamps
317 Vostok, Antarctica changed to +05 on 2023-12-18. It had been at
318 +07 (not +06) for years. (Thanks to Zakhary V. Akulov.)
320 Change data for Casey, Antarctica to agree with timeanddate.com,
324 Changes to past tm_isdst flags
327 standard time from -03 to -02 on 2023-03-25, not on 2023-10-28.
329 (Thanks to Thomas M. Steenholdt.)
336 experimental and subject to change.
338 Changes to code
342 DST was in effect before the transition too. (Thanks to Alois
350 tzselect now optionally reads zonenow.tab, to simplify when
371 predicted for just before and just after Ramadan. (Thanks to Ken
377 Changes to build procedure
387 Due to the CC changes, TZDIR is now #defined in a file tzdir.h
391 Changes to commentary
400 Changes to past and future timestamps
402 Model Lebanon's DST chaos by reverting data to tzdb 2023a.
403 (Thanks to Rany Hany for the heads-up.)
408 Changes to future timestamps
411 (Thanks to Saadallah Itani.) [This was reverted in 2023c.]
421 America/Yellowknife now links to America/Edmonton.
422 tzselect can now use current time to help infer timezone.
423 The code now defaults to C99 or later.
426 Changes to future timestamps
429 through October's last Thursday. (Thanks to Ahmad ElDardiry.)
433 will occur April 23, not April 30. (Thanks to Milamber.)
438 March 25 to April 29 due to Ramadan. (Thanks to Heba Hamad.)
441 Much of Greenland, represented by America/Nuuk, will continue to
443 Greenland's decision not to change the clocks in fall 2023,
444 America/Nuuk therefore changes from -03/-02 to -02/-01 effective
445 2023-10-29 at 01:00 UTC. (Thanks to Thomas M. Steenholdt.)
449 Changes to past timestamps
451 America/Yellowknife has changed from a Zone to a backward
453 since 1970. (Thanks to Almaz Mingaleev.) This affects some
456 Changes to past time zone abbreviations
462 Changes to code
464 You can now tell tzselect local time, to simplify later choices.
467 You can now compile with -DTZNAME_MAXIMUM=N to limit time zone
468 abbreviations to N bytes (default 255). The reference runtime
471 platform dependent and abbreviations were silently truncated to
474 The code by default is now designed for C99 or later. To build on
477 perhaps a few other extensions to C89. To support C89 callers of
480 are transitional aids planned to be removed in a future version
501 Changes to commentary
504 distributors". (Thanks to Neil Fuller for some of the text.)
506 To improve tzselect diagnostics, zone1970.tab's comments column is
507 now limited to countries that have multiple timezones.
509 Note that there are plans to discontinue leap seconds by 2035.
515 The northern edge of Chihuahua changes to US timekeeping.
524 Changes to future timestamps
527 will change to agree with nearby US locations on 2022-11-30.
529 from -06 all year to -07/-06 with US DST rules, like El Paso, TX.
531 year, like Presidio, TX. (Thanks to Heitor David Pinto.)
536 standard time. (Thanks to Jonas Nyrup and Jürgen Appel.)
538 Changes to past timestamps
540 Changes for pre-1996 northern Canada (thanks to Chris Walton):
551 Whitehorse moved from -09 to -08 on 1966-02-27, not 1967-05-28.
554 (Thanks to Alois Treindl.)
557 not 24:00 local time. (Thanks to Geoff Clare via Robert Elz.)
559 Changes to code
563 C89 is no longer used to build tzcode. As it is a maintenance
564 burden, support for C89 is planned to be removed soon. Instead,
577 Fix zic configuration to avoid linkage failures on some platforms.
583 Port mktime and strftime to debugging platforms where accessing
588 C23 <stdckdint.h> to overflow checking by hand, as the latter has
591 Changes to build procedure
602 Chihuahua moves to year-round -06 on 2022-10-30.
604 Move links to 'backward'.
606 zic now supports links to links, and vanguard form uses this.
614 Changes to future timestamps
617 near the US border that continue to observe US DST rules.
619 from -07 (-06 with DST) to year-round -06, thus not changing
622 (Thanks to gera for the heads-up about Chihuahua.)
624 Fiji will not observe DST in 2022/3. (Thanks to Shalvin Narayan.)
627 Changes to data
629 Move links to 'backward' to ease and simplify link maintenance.
637 Vanguard form now uses links to links, as zic now supports this.
639 Changes to past timestamps
642 seem to have been imaginary. (Problem reported by Chris Walton.)
644 to 'backzone'; backward-compatibility links still work, albeit
647 Changes to code
649 zic now supports links to links regardless of input line order.
656 would fail because the first command attempts to use a link
662 Fix line number in zic's diagnostic for a link to a link.
664 Fix a bug that caused localtime to mishandle timestamps starting
668 the corresponding .zi Rule lines specify DST transitions with TO
675 default time_t to 64 instead of 32 bits. This lets functions like
678 To continue to limit time_t to 32 bits on these platforms, use
687 In C code, prefer C23 keywords to pre-C23 macros for alignof,
703 Jordan and Syria switch from +02/+03 with DST to year-round +03.
705 Changes to future timestamps
707 Jordan and Syria are abandoning the DST regime and are changing to
708 permanent +03, so they will not fall back from +03 to +02 on
709 2022-10-28. (Thanks to Steffen Thorsen and Issam Al-Zuwairi.)
711 Changes to past timestamps
715 Changes to past time zone abbreviations and DST flags
719 changes to standard time.
728 Changes to future timestamps
733 (Thanks to Heba Hamad.)
735 Changes to past timestamps
737 Simplify three Ukraine zones to one, since the post-1970
738 differences seem to have been imaginary. Move Europe/Uzhgorod and
739 Europe/Zaporozhye to 'backzone'; backward-compatibility links
749 Changes to code
755 Add code to tzselect that uses experimental structured comments in
756 zone1970.tab to clarify whether Zones like Africa/Abidjan and
772 Rename Europe/Kiev to Europe/Kyiv.
775 Finish moving duplicate-since-1970 zones to 'backzone'.
779 Changes to future timestamps
781 Chile's 2022 DST start is delayed from September 4 to September 11.
782 (Thanks to Juan Correa.)
784 Iran plans to stop observing DST permanently, after it falls back
785 on 2022-09-21. (Thanks to Ali Mirjamali.)
787 Changes to past timestamps
789 Finish moving to 'backzone' the location-based zones whose
805 (Thanks to Michael Deckers.)
808 DST from 03-21 23:00 to 10-20 24:00; its 1978 transitions were on
811 (Thanks to Roozbeh Pournader and Francis Santoni.)
815 their clocks back to rejoin the rest of mainland Chile; put this
816 change at the end of 1946-08-28. (Thanks to Michael Deckers.)
822 Changes to zone name
824 Rename Europe/Kiev to Europe/Kyiv, as "Kyiv" is more common in
830 Changes to code
832 zic has a new option '-R @N' to output explicit transitions < N.
839 now supports input line lengths up to 2048 (not 512) bytes.
842 POSIX is being revised to require this.
845 like tzname, they now prefer specified timestamps to unspecified ones.
848 zic no longer complains "can't determine time zone abbreviation to
849 use just after until time" when a transition to a new standard
852 Changes to build procedure
859 to use %z eventually; in the meantime maintainers of zi parsers
860 are encouraged to test the parsers on vanguard.zi.
862 The Makefile has a new PACKRATLIST option to select a subset of
864 PACKRATLIST=zone.tab' now generates TZif files identical to those
872 'make install' now defaults LOCALTIME to Factory not GMT,
885 Changes to future timestamps
888 (Thanks to Heba Hamad.) Predict future transitions for first
889 Sunday >= March 25. Additionally, predict fallbacks to be the first
890 Friday on or after October 23, not October's last Friday, to be more
894 Changes to past timestamps
897 02:00 standard time, not at 01:00 UTC. (Thanks to Alois Treindl.)
900 eastward by 1 second to align with past and present law.
902 Changes to commentary
907 Changes to code
916 validates the version 1 header and data block only enough to skip
918 reader no longer mistakenly attempts to parse a version 1 TZIf
924 Changes to build procedure
930 of " ". The two formats are planned to diverge more significantly
932 format becomes obsolete and the tarballs switch to pax format, an
940 Changes to future timestamps
943 (Thanks to P Chan and Heba Hemad.)
952 Changes to future timestamps
955 Assume for now that it will return next year. (Thanks to Jashneel
958 Changes to code
961 with UT offsets that are unspecified due to -r truncation.
968 Revert most 2021b changes to 'backward'.
973 This release is intended as a bugfix release, to fix compatibility
976 Changes to Link directives
978 Revert almost all of 2021b's changes to the 'backward' file,
979 by moving Link directives back to where they were in 2021a.
984 Fix typo that linked Atlantic/Jan_Mayen to the wrong location
987 Fix 'backzone' typo that linked America/Virgin to the wrong
990 Changes to code
992 Fix a bug in 'zic -b fat' that caused old timestamps to be
996 Changes to documentation
1007 Move some backward-compatibility links to 'backward'.
1008 Rename Pacific/Enderbury to Pacific/Kanton.
1016 tzfile.5 better matches a draft successor to RFC 8536.
1027 Changes to future timestamps
1030 (Thanks to Steffen Thorsen.)
1032 Samoa no longer observes DST. (Thanks to Geoffrey D. Bennett.)
1034 Changes to zone name
1036 Rename Pacific/Enderbury to Pacific/Kanton. When we added
1041 Changes to past timestamps
1047 - Cook Islands: In 1899 they switched from east to west of GMT,
1049 to standard time in 1952, not 1901.
1051 standard time in 1911, not 1915; and corrections to 1975 and
1054 - Niue: only observed -11:20 from 1952 through 1964, then went to
1058 not 1901; and corrections to the transition from +12:20 to +13
1060 Additional fixes to entries in the 'backzone' file include:
1066 (Thanks to P Chan, Michael Deckers, Alexander Krivenyshev and
1073 PACKRATDATA=backzone' should see no changes to pre-1970 timestamps.
1075 data for other locations to 'backzone' with a backward
1076 link in 'backward'. For example, move America/Creston data to
1086 Changes to maintenance procedure
1088 The new file SECURITY covers how to report security-related bugs.
1090 Several backward-compatibility links have been moved to the
1092 to Pacific/Saipan, are only for compatibility with now-obsolete
1095 Europe/Nicosia have also been moved to 'backward'.
1097 Changes to code
1105 Starting with 2020a, zic -L truncated its output according to the
1108 the leap second table expired, which led to far less accurate
1111 is more accurate to convert near-future timestamps with a few
1116 outputs the expiration by appending a no-change entry to the leap
1118 readers, it does not conform to Internet RFC 8536 and some pickier
1120 "Expires" directives are currently disabled by default. To enable
1123 a format intended to be documented in a successor to RFC 8536.
1133 The TZif reader now allows the leap second table to begin with a
1134 correction other than -1 or +1, and to contain adjacent
1140 Fix bug that caused 'localtime' etc. to crash when TZ was
1141 set to a all-year DST string like "EST5EDT4,0/0,J365/25" that does
1142 not conform to POSIX but does conform to Internet RFC 8536.
1144 Fix another bug that caused 'localtime' etc. to crash when TZ was
1145 set to a POSIX-conforming but unusual TZ string like
1148 Fix yet another bug that caused 'localtime' etc. to mishandle slim
1173 Fix an unlikely bug that caused 'localtime' etc. to misbehave if
1178 last time transition disagreed with the TZ string, contrary to
1183 was truncated so that X appeared to be a positive leap second.
1194 "EST5EDT,0/0,J365/25" or "". (Thanks to Michael Deckers for
1197 zic.c no longer requires sys/wait.h (thanks to spazmodius for
1207 (Thanks to Arthur David Olson for prototype code, and to Manuela
1214 Changes to build procedure
1216 You can now compile with -DHAVE_MALLOC_ERRNO=0 to port to
1220 Changes to documentation
1222 tzfile.5 better matches a draft successor to RFC 8536
1228 Changes to future timestamps
1230 South Sudan changes from +03 to +02 on 2021-02-01 at 00:00.
1231 (Thanks to Steffen Thorsen.)
1236 Change to build procedure
1245 Volgograd switches to Moscow time on 2020-12-27 at 02:00.
1247 Changes to future timestamps
1249 Volgograd changes time zone from +04 to +03 on 2020-12-27 at 02:00.
1250 (Thanks to Alexander Krivenyshev and Stepan Golosunov.)
1252 Changes to past timestamps
1267 (Thanks to P Chan.)
1270 no longer needed, as it is identical to Australia/Hobart for all
1272 Australia/Currie has been moved to the 'backward' file and its
1273 corrected data moved to the 'backzone' file.
1275 Changes to past time zone abbreviations and DST flags
1277 To better match legislation in Turks and Caicos, the 2015 shift to
1279 returning to Eastern Time with US DST in 2018, rather than as
1280 maintaining EDT until 2015-11-01. (Thanks to P Chan.)
1282 Changes to documentation
1293 Changes to past and future timestamps
1296 as previously predicted (thanks to Sharef Mustafa.) Its
1297 2019-10-26 fall-back was at 00:00, not 01:00 (thanks to Steffen
1300 (thanks to Pierre Cashon.) This affects Asia/Gaza and
1311 Changes to future timestamps
1315 (Thanks to Raymond Kumar and Alan Mintz.) Assume for now that
1319 Changes to build procedure
1322 Some older downstream software expects this file to exist.
1330 Canada's Yukon changes to -07 on 2020-11-01, not 2020-03-08.
1335 Changes to future timestamps
1337 Morocco's spring-forward after Ramadan is now predicted to occur
1339 (Thanks to Milamber.) The first altered prediction is for 2023,
1340 now predicted to spring-forward on April 30 instead of April 23.
1342 Changes to past and future timestamps
1345 summer since 2018. The most recent transition from +08 to +11 was
1347 sync with Tasmania since 2011. (Thanks to Steffen Thorsen.)
1349 Changes to past and future time zone abbreviations and DST flags
1352 America/Dawson, changes its time zone rules from -08/-07 to
1356 (Thanks to Andrew G. Smith.)
1358 Changes to past timestamps
1362 (Thanks to Géza Nyáry.) Also, the 1890 transition to standard
1363 time was on 11-01, not 10-01 (thanks to Michael Deckers).
1368 1891-03-15 and 1911-03-11. (Thanks to Michael Deckers.)
1370 Changes to code
1376 (Thanks to Tim Parenti.)
1378 zic now defaults to '-b slim' instead of to '-b fat'.
1386 Changes to build procedure
1388 The Makefile now defaults POSIXRULES to '-', so the posixrules
1391 Changes to documentation and commentary
1394 been removed from the distribution. (Thanks to Tim Parenti.)
1401 Canada's Yukon advanced to -07 year-round on 2020-03-08.
1405 Changes to future timestamps
1408 not May 24 as predicted earlier. (Thanks to Semlali Naoufal.)
1409 Adjust future-year predictions to use the first Sunday after the
1413 America/Dawson, advanced to -07 year-round, beginning with its
1418 (Thanks to Tim Parenti.)
1420 Changes to past timestamps
1422 Shanghai observed DST in 1919. (Thanks to Phake Nick.)
1424 Changes to timezone identifiers
1426 To reflect current usage in English better, America/Godthab has
1427 been renamed to America/Nuuk. A backwards-compatibility link
1430 Changes to code
1437 from 01:59:32.999... to 02:59:33 instead of the correct transition
1438 from 01:59:59.999... to 03:00:00.
1449 that the file can be fed to older versions of zic which ignore the
1450 commented-out line. Future tzdb distributions are planned to
1454 set to 1 if the system library supports the feature, and 2 if not.
1462 portable to POSIX awk. (Problem reported by Deborah Goldsmith.)
1466 future releases. Due to POSIX requirements, tzsetwall has not
1471 Changes to commentary
1475 "north" have been corrected to say "east" and "west". (Thanks to
1482 Fiji observes DST from 2019-11-10 to 2020-01-12.
1485 Changes to future timestamps
1488 instead of 2019-11-03 and 2020-01-19. (Thanks to Raymond Kumar.)
1492 spring 2019. The first transition is on 2019-10-06. (Thanks to
1495 Changes to past timestamps
1497 Many corrections to time in Turkey from 1940 through 1985.
1498 (Thanks to Oya Vulaş via Alois Treindl, and to Kıvanç Yazan.)
1501 time, not 02:00 DST. (Thanks to Michael Deckers.)
1504 info was supposed to appear in release 2014j, a typo inadvertently
1505 suppressed the change. (Thanks to Alois Treindl.)
1508 except that its 1967 DST began on June 14 at 00:01. (Thanks to
1513 (Thanks to Alois Treindl for pointing out the 1967/9 errors.)
1518 to +02/+03 on 04-10 not 01-01, and its +02/+03 is abbreviated
1519 EET/EEST, not CET/CEST. (Thanks to Alois Treindl.) In 1946
1520 Königsberg switched to +03 on 04-07 not 01-01.
1522 In 1946 Louisville switched from CST to CDT on 04-28 at 00:01, not
1523 01-01 at 00:00. (Thanks to Alois Treindl and Michael Deckers.)
1524 Also, it switched from CST to CDT on 1950-04-30, not 1947-04-27.
1527 (Thanks to Michael Deckers.)
1529 Changes to past time zone abbreviations and DST flags
1531 Hong Kong Winter Time, observed from 1941-10-01 to 1941-12-25,
1534 Changes to code
1541 (Thanks to Brian Inglis and Chris Woodbury.)
1543 Changes to documentation and commentary
1545 theory.html discusses leap seconds. (Thanks to Steve Summit.)
1548 (Thanks to John Seigenthaler.)
1551 (Thanks to Alois Treindl.)
1561 Changes to future timestamps
1564 (Thanks to Steffen Thorsen, Marcus Diniz, and Daniel Soares de
1567 Predictions for Morocco now go through 2087 instead of 2037, to
1571 Changes to past and future timestamps
1574 at 01:00. (Thanks to Sharef Mustafa and Even Scharning.) Guess
1575 future transitions to be March's last Friday at 00:00.
1577 Changes to past timestamps
1580 03:30. Its 1945 transition from JST to HKT was on 11-18 at 02:00,
1585 (Thanks to P Chan.)
1587 Changes to past time zone abbreviations
1589 Italy's 1866 transition to Rome Mean Time was on December 12, not
1591 Europe/Rome between those dates. (Thanks to Stephen Trainor and
1599 Changes to code
1601 zic's new -b option supports a way to control data bloat and to
1604 for example, changing from fat to slim shrinks the Europe/London
1605 file from 3648 to 1599 bytes, saving about 56%. Fat and slim
1608 Fat format attempts to work around bugs or incompatibilities in
1612 or obsolete TZ strings. Currently zic defaults to fat format
1614 out-of-the-box default is intended to change in future releases
1627 Changes to build procedure
1632 Changes to documentation and commentary
1645 New info on Bonin Islands and Marcus (thanks to Wakaba and Phake Nick).
1652 Metlakatla "fell back" to rejoin Alaska Time on 2019-01-20 at 02:00.
1654 Changes to past and future timestamps
1659 since 2016. (Thanks to Even Scharning and Tim Parenti.)
1662 rejoining Alaska Time, on 2019-01-20 at 02:00. (Thanks to Ryan
1665 Changes to past timestamps
1668 (Thanks to Alois Treindl and Isaac Starkman.)
1670 Changes to time zone abbreviations
1672 Etc/UCT is now a backward-compatibility link to Etc/UTC, instead
1677 Changes to code
1679 zic now has an -r option to limit the time range of output data.
1680 For example, 'zic -r @1000000000' limits the output data to
1688 Changes to documentation
1699 São Tomé and Príncipe switches from +01 to +00 on 2019-01-01.
1701 Changes to future timestamps
1703 Due to a change in government, São Tomé and Príncipe switches back
1704 from +01 to +00 on 2019-01-01 at 02:00. (Thanks to Vadim
1711 Qyzylorda, Kazakhstan moved from +06 to +05 on 2018-12-21.
1714 Guess Morocco will continue to adjust clocks around Ramadan.
1717 Changes to future timestamps
1719 Guess that Morocco will continue to fall back just before and
1721 (Thanks to Maamar Abdelkader.) This means Morocco will observe
1725 this guesswork to the year 2037. As a consequence, Morocco is
1726 scheduled to observe three DST transitions in some Gregorian years
1727 (e.g., 2033) due to the mismatch between the Gregorian and Islamic
1731 It formerly cut off before the year 2038 in a nod to 32-bit time_t.
1734 2038-9, 2042-3, and 2046-7 to occur one day later than previously
1737 Changes to past and future timestamps
1739 Qyzylorda (aka Kyzylorda) oblast in Kazakhstan moved from +06 to
1743 Metlakatla moved from Alaska to Pacific standard time on 2018-11-04.
1745 (Thanks to Ryan Stanley.) It will revert to the usual Alaska
1749 Change to past timestamps
1751 Kwajalein's 1993-08-20 transition from -12 to +12 was at 24:00,
1753 (Thanks to Phake Nick.)
1756 (Thanks to Phake Nick.)
1759 (Thanks to Phake Nick.)
1762 10-01 changed standard time to +08:30 (not +08). Its transition
1763 back to +08 after WWII was on 1945-09-15, not the previous day.
1765 (Thanks to Phake Nick, Steve Allen, and Joseph Myers.) Also,
1768 This release contains many changes to timestamps before 1946 due
1769 to Japanese possession or occupation of Pacific/Chuuk,
1772 (Thanks to Phake Nick.)
1778 Changes to past tm_isdst flags
1781 2018-10-27 00:00 to 2018-10-28 03:00. (Thanks to Michael Deckers.)
1782 Give a URL to the official decree. (Thanks to Matt Johnson.)
1788 Morocco switches to permanent +01 on 2018-10-28.
1790 Changes to future timestamps
1792 Morocco switches from +00/+01 to permanent +01 effective 2018-10-28,
1794 (Thanks to Mohamed Essedik Najd and Brian Inglis.)
1796 Changes to code
1803 The translator to rearguard format now rewrites the line
1804 "Rule Japan 1948 1951 - Sep Sat>=8 25:00 0 S" to
1806 This caters to zic before 2007 and to Oracle TZUpdater 2.2.0
1809 Changes to past time zone abbreviations
1811 Change HDT to HWT/HPT for WWII-era abbreviations in Hawaii.
1812 This reverts to 2011h, as the abbreviation change in 2011i was
1815 Changes to documentation
1823 Volgograd moves from +03 to +04 on 2018-10-28.
1827 Changes to future timestamps
1829 Volgograd moves from +03 to +04 on 2018-10-28 at 02:00.
1830 (Thanks to Alexander Fetisov and Stepan Golosunov.)
1833 predicted. (Thanks to Raymond Kumar.) Adjust future predictions
1839 Magallanes region modeled by America/Punta_Arenas. (Thanks to Juan Correa
1842 Changes to past timestamps
1849 (Thanks to P Chan.)
1852 was off by 10 s. Macau switched to +08 in 1904 not 1912, and
1853 temporarily switched to +09/+10 during World War II. Macau
1855 errors for transition times and dates. (Thanks to P Chan.)
1858 September's second Saturday, not at 24:00. (Thanks to Phake Nick.)
1865 Changes to time zone abbreviations
1867 Use "PST" and "PDT" for Philippine time. (Thanks to Paul Goyette.)
1869 Changes to code
1881 no longer need this to handle historical timestamps correctly.
1893 future-proofs the code against possible future extensions to the
1911 Changes to documentation
1929 (Thanks to Aldrin Martoq for the link.)
1931 Changes to build procedure
1933 New 'make' target 'rearguard_tarballs' to build the rearguard
1935 if you want to build the rearguard tarball. (Problem reported by
1938 tzdata.zi is now more stable from release to release. (Problem
1946 compatibility. A redistributor intending to alter its copy of the
1947 files should also append "-LABEL" to the 'version' file's first
1955 North Korea switches back to +09 on 2018-05-05.
1960 Changes to past and future timestamps
1962 North Korea switches back from +0830 to +09 on 2018-05-05.
1963 (Thanks to Kang Seonghoon, Arthur David Olson, Seo Sanghyeon,
1970 negative DST to model timestamps in Europe/Dublin (from 1971 on),
1978 Changes to build procedure
1985 Changes to data format and to code
1992 in tzdata, it could be used to specify the legal time in Namibia
1993 1994-2017, as opposed to the popular time (see below).
1995 Changes to past timestamps
2003 practice winter time was considered to be DST (as noted by Stephen
2021 Add subsecond precision to source data format, though not to data.
2023 Changes to future timestamps
2026 Adjust future predictions accordingly. (Thanks to Sharef Mustafa.)
2028 Changes to past and future timestamps
2030 Casey Station in Antarctica changed from +11 to +08 on 2018-03-11
2031 at 04:00. (Thanks to Steffen Thorsen.)
2033 Changes to past timestamps
2039 30 to 90 minutes in either direction over at least two dozen
2040 distinct periods ranging from one day to several years in length.
2046 adjusted westward by 7 seconds, from UT-03:44:44 to UT-03:44:51, to
2049 (Thanks to Jeremie Bonjour, Tim Parenti, and Michael Deckers.)
2052 (Thanks to Kerry Shetline.)
2055 This transition was at 00:00 according to the new UT offset, not
2056 according to the old one. Also assume that Cape Verde switched on
2060 (Thanks to Michael Deckers.)
2065 Changes to past time zone abbreviations
2070 Changes to build procedure
2073 among three source data formats. The idea is to lessen downstream
2080 vanguard format should move to the main format, and similarly
2081 the main format's features should eventually move to the
2091 should move to the main format soon. However, it will not move
2092 to the rearguard format for quite some time because some
2098 discrepancies that users are not likely to notice. The files
2102 when the negative-DST feature moves from vanguard to main.
2112 prepends TZDIR/ to file names that do not begin with '/'. This is
2113 not recommended for general use, due to its security implications.
2116 Changes to code
2120 Netherlands from 1835 to 1937. However, because it is
2123 to use this feature. (Thanks to Steve Allen for pointing out
2126 The code is a bit more portable to MS-Windows. Installers can
2128 reserve identifiers like 'localtime'. (Thanks to Manuela
2131 Changes to documentation and commentary
2133 theory.html now outlines tzdb's extensions to POSIX's model for
2140 saving time", to match the C name tm_isdst. Daylight saving time
2145 with links to many relevant legal documents.
2146 (Thanks to Tim Parenti.)
2158 Changes to tm_isdst
2160 Revert the 2018a change to Europe/Dublin. As before, this change
2162 whether timestamps are considered to be standard time or
2164 struct tm type. This reversion is intended to be a temporary
2171 support them. A mechanism to export data to platforms lacking
2172 support for negative DST is planned to be developed before the
2176 Changes to past timestamps
2179 Saturdays or Sundays at 02:00. (Thanks to Takayuki Nikai.)
2181 Changes to build procedure
2192 Changes to build procedure
2202 São Tomé and Príncipe switched from +00 to +01.
2208 Changes to past and future timestamps
2210 São Tomé and Príncipe switched from +00 to +01 on 2018-01-01 at
2211 01:00. (Thanks to Steffen Thorsen and Michael Deckers.)
2213 Changes to future timestamps
2216 first Sunday instead of October's third Sunday. (Thanks to
2219 Changes to past timestamps
2227 BST instead of BOST, to be more consistent with the convention
2230 Changes to tm_isdst
2237 considered to be standard time or daylight-saving time, as
2241 Changes to build procedure
2243 The default installation locations have been changed to mostly
2244 match Debian circa 2017, instead of being designed as an add-on to
2248 locations more precisely. (This responds to suggestions from
2254 Use 'make BACKWARD="backward pacificnew"' to create the link
2255 anyway, for now. Eventually we plan to remove the link entirely.
2261 passing them to the shell. (Problem reported by Zefram.)
2263 Builders no longer need to specify -DHAVE_SNPRINTF on platforms
2267 Changes to code
2272 macro, which defaults to /etc/localtime.
2277 zic has been ported to GCC 8's -Wstringop-truncation option.
2280 Changes to documentation and commentary
2290 The files tz-art.htm and tz-link.htm have been renamed to
2292 other file names and to simplify web server configuration.
2298 Northern Cyprus switches from +03 to +02/+03 on 2017-10-29.
2300 Namibia switches from +01/+02 to +02 on 2018-04-01.
2301 Sudan switches from +03 to +02 on 2017-11-01.
2302 Tonga likely switches from +13/+14 to +13 on 2017-11-05.
2303 Turks & Caicos switches from -04 to -05/-04 on 2018-11-04.
2307 Changes to future timestamps
2309 Northern Cyprus has decided to resume EU rules starting
2313 predicted. (Thanks to Dominic Fok.) Adjust future predictions
2316 Namibia will switch from +01 with DST to +02 all year on
2318 at 02:00. (Thanks to Steffen Thorsen.)
2320 Sudan will switch from +03 to +02 on 2017-11-01. (Thanks to Ahmed
2322 Africa/Juba is no longer a link to Africa/Khartoum.
2326 whether it will continue to observe DST, the IATA is assuming that
2327 it will not. (Thanks to David Wade.)
2329 Turks & Caicos will switch from -04 all year to -05 with US DST on
2331 at 02:00. (Thanks to Steffen Thorsen.)
2333 Changes to past timestamps
2335 Namibia switched from +02 to +01 on 1994-03-21, not 1994-04-03.
2336 (Thanks to Arthur David Olson.)
2340 Use railway time for Asia/Kolkata before 1941, by switching to
2341 Madras local time (UT +052110) in 1870, then to IST (UT +0530) in
2345 02:00 standard time, not 02:00 DST. (Thanks to Michael Deckers.)
2347 Pacific/Apia and Pacific/Pago_Pago switched from Antipodean to
2348 American time in 1892, not 1879. (Thanks to Michael Deckers.)
2350 Adjust the 1867 transition in Alaska to better reflect the
2351 historical record, by changing it to occur on 1867-10-18 at 15:30
2354 the rest of Alaska's blanks need to be filled in somehow.
2357 (Thanks to Michael Deckers.)
2359 Add 7 s to the UT offset in Asia/Yangon before 1920.
2361 Changes to zone names
2366 Changes to build procedure
2368 To support applications that prefer to read time zone data in text
2372 without and with leap seconds, respectively. To prevent these two
2373 new files from being installed, use 'make TZDATA_TEXT=', and to
2382 or that lack the nsgmls program. Set UTF8_LOCALE to configure
2386 -DDEPRECATE_TWO_DIGIT_YEARS to CFLAGS to enable them, instead of
2388 to disable them. (New name suggested by Brian Inglis.)
2393 Changes to code
2400 in civil timekeeping. (Thanks to Robert Elz and Bradley White for
2407 weekdays; formerly it rejected them due to a bug. Conversely, zic
2408 no longer considers non-prefixes to be abbreviations; for example,
2428 if not defined, the code attempts to guess it from other macros.
2441 Several minor changes have been made to the code to make it a
2442 bit easier to port to MS-Windows and Solaris. (Thanks to Kees
2445 Changes to documentation and commentary
2448 contents of the removed file 'Theory'. The goal is to document
2453 tz-link.htm now covers how to apply tzdata changes to clients.
2454 (Thanks to Jorge Fábregas for the AIX link.) It also mentions MySQL.
2456 The leap-seconds.list URL has been updated to something that is
2457 more reliable for tzdb. (Thanks to Tim Parenti and Brian Inglis.)
2463 Changes to past and future timestamps
2465 Haiti resumed observance of DST in 2017. (Thanks to Steffen Thorsen.)
2467 Changes to past timestamps
2469 Liberia changed from -004430 to +00 on 1972-01-07, not 1972-05-01.
2471 Use "MMT" to abbreviate Liberia's time zone before 1972, as "-004430"
2474 Changes to code
2482 loaded. (Thanks to Tom Lane.)
2487 Briefly: Southern Chile moves from -04/-03 to -03, and Mongolia
2490 Changes to future timestamps
2492 Mongolia no longer observes DST. (Thanks to Ganbold Tsagaankhuu.)
2494 Chile's Region of Magallanes moves from -04/-03 to -03 year-round.
2498 assume it's permanent. (Thanks to Juan Correa and Deborah
2501 Changes to past timestamps
2504 before 1979, to agree with tables compiled by Pere Planesas of the
2507 are probably guesswork anyway. (Thanks to Steve Allen and
2508 Pierpaolo Bernardi for the heads-ups, and to Michael Deckers for
2511 Ecuador observed DST from 1992-11-28 to 1993-02-05.
2512 (Thanks to Alois Treindl.)
2515 (Thanks to Stepan Golosunov.)
2517 Changes to past and future time zone abbreviations
2519 Switch to numeric time zone abbreviations for South America, as
2521 This avoids the need to invent an abbreviation for the new Chilean
2522 new zone. Similarly, switch from invented to numeric time zone
2552 Change to database entry category
2554 Move the Pacific/Johnston link from 'australasia' to 'backward',
2557 Changes to code
2560 attempts to work around Qt bug 53071. This fixes a bug affecting
2574 zdump.c now always includes private.h, to avoid code duplication
2578 when TZ is set to a POSIX-style string that specifies DST.
2581 date and strftime now cause %z to generate "-0000" instead of
2585 Changes to documentation and commentary
2595 Briefly: Saratov, Russia moves from +03 to +04 on 2016-12-04.
2597 Changes to future timestamps
2599 Saratov, Russia switches from +03 to +04 on 2016-12-04 at 02:00.
2601 (Thanks to Yuri Konotopov and Stepan Golosunov.)
2603 Changes to past timestamps
2606 Asia/Aqtau except it switched from +05/+06 to +04/+05 in spring
2607 1999, not fall 1994. (Thanks to Stepan Golosunov.)
2609 Changes to past time zone abbreviations
2611 Asia/Gaza and Asia/Hebron now use "EEST", not "EET", to denote
2614 Changes to code
2622 Changes to documentation and commentary
2631 the names "Cabo Verde" and "Czechia". (Thanks to Jiří Boháč.)
2639 Changes to future timestamps
2644 January, like Fiji. (Thanks to Pulu ʻAnau.) Switch to numeric
2647 Changes to past and future timestamps
2651 Asia/Famagusta. (Thanks to Even Scharning and Matt Johnson.)
2653 Antarctica/Casey switched from +08 to +11 on 2016-10-22.
2654 (Thanks to Steffen Thorsen.)
2656 Changes to past timestamps
2663 offset (+01), not the old (+00:49:56). (Thanks to Michael
2666 Second, rules for daylight saving in Italy were changed to agree
2668 except for 1944, as follows (thanks to Pierpaolo Bernardi, Brian
2681 (which says 02:00) appears to have a typo here. Also, keep the
2688 Changes to code
2696 Changes to future timestamps
2699 2016-10-21 at 00:00. (Thanks to Sharef Mustafa.) Predict that
2702 on the last Saturday of March. (Thanks to Tim Parenti.)
2704 Changes to past timestamps
2708 March 27. (Thanks to Kıvanç Yazan.)
2710 Changes to past and future time zone abbreviations
2718 Changes to code
2725 Changes to build procedure
2734 Changes to documentation and commentary
2742 for geolocation. (Thanks to heads-ups from Evan Siroky and Matt
2748 release. (Thanks to Raymond Kumar.)
2753 Changes to future timestamps
2755 Turkey switched from EET/EEST (+02/+03) to permanent +03,
2756 effective 2016-09-07. (Thanks to Burak AYDIN.) Use "+03" rather
2760 (Thanks to Tim Parenti.)
2762 Changes to past timestamps
2765 corrected from 02:00 to 02:01 in 1948, and from 02:00 to 01:00 in
2768 For zones using Soviet time on 1919-07-01, transitions to UT-based
2771 Europe/Ulyanovsk. (Thanks to Alexander Belopolsky.)
2773 Changes to past and future time zone abbreviations
2776 of a long English-language string, as -00 is now the normal way to
2801 Changes to zone names
2803 Rename Asia/Rangoon to Asia/Yangon, with a backward compatibility link.
2804 (Thanks to David Massoud.)
2806 Changes to code
2812 on the reference platform. (Thanks to Alexander Belopolsky for
2820 zic now avoids hard linking to symbolic links, avoids some
2824 zdump has a new -i option to generate transitions in a
2827 (Thanks to Jon Skeet for suggesting that an option was needed,
2828 and thanks to Tim Parenti and Chris Rovick for further comments.)
2830 Changes to build procedure
2833 to the traditional format which will continue to be distributed.
2835 file tzdb-VERSION.tar.lz.asc. It unpacks to a top-level directory
2838 (Thanks to Antonio Diaz Diaz, Oscar van Vlijmen, and many others
2847 e.g., '2016g'. To support the more accurate version number, its
2848 specification has moved from a line in the Makefile to a new
2858 Changes to documentation and commentary
2864 (Thanks to Alexander Belopolsky.)
2866 tz-link.htm mentions JuliaTime (thanks to Curtis Vogt) and Time4J
2867 (thanks to Meno Hochschild) and ThreeTen-Extra, and its
2868 description of Java 8 has been brought up to date (thanks to
2870 been updated to match current practice, and URLs have been updated
2880 (Thanks to Mina Samuel.)
2882 Asia/Novosibirsk switches from +06 to +07 on 2016-07-24 at 02:00.
2883 (Thanks to Stepan Golosunov.)
2885 Changes to past and future timestamps
2893 (Thanks to Stepan Golosunov.)
2900 Africa/Cairo observes DST in 2016 from July 7 to the end of October.
2901 Guess October 27 and 24:00 transitions. (Thanks to Steffen Thorsen.)
2902 For future years, guess April's last Thursday to October's last
2914 Asia/Baku's 1992-09-27 transition from +04 (DST) to +04 (non-DST) was
2915 at 03:00, not 23:00 the previous day. (Thanks to Michael Deckers.)
2917 Changes to code
2922 (Thanks to Zhanibek Adilbekov for reporting the Qt bug.)
2927 time zone or DST changes, and refers to Matt Johnson's blog post.
2929 tz-link.htm mentions Tzdata for Elixir. (Thanks to Matt Johnson.)
2936 America/Caracas switches from -0430 to -04 on 2016-05-01 at 02:30.
2937 (Thanks to Alexander Krivenyshev for the heads-up.)
2939 Asia/Magadan switches from +10 to +11 on 2016-04-24 at 02:00.
2940 (Thanks to Alexander Krivenyshev and Matt Johnson.)
2943 Tomsk Oblast, Russia, which switches from +06 to +07 on 2016-05-29
2944 at 02:00. (Thanks to Stepan Golosunov.)
2949 Kirov Oblast, Russia, which switched from +04/+05 to +03/+04 on
2951 the same change. (Thanks to Stepan Golosunov.)
2955 1992-03-28 at 23:00 and 1992-09-26 at 23:00. (Thanks to Stepan
2958 Many corrections to historical time in Kazakhstan from 1991
2959 through 2005. (Thanks to Stepan Golosunov.) Replace Kazakhstan's
2962 Changes to commentary
2971 Azerbaijan no longer observes DST. (Thanks to Steffen Thorsen.)
2973 Chile reverts from permanent to seasonal DST. (Thanks to Juan
2974 Correa for the heads-up, and to Tim Parenti for corrections.)
2982 Europe/Kaliningrad and Europe/Vilnius changed from +03/+04 to
2984 from +04/+05 to +03/+04 on 1988-03-27, not 1989-03-26.
2985 (Thanks to Stepan Golosunov.)
2987 Changes to commentary
2990 (Thanks to Stepan Golosunov, Matt Johnson, and Alexander Krivenyshev.)
2998 derived from tz releases 2005j through 2015e to issue warnings like
3001 ignored on today's platforms, as the warnings refer to a restriction in
3002 POSIX.1-1988 that was removed in POSIX.1-2001. One way to suppress the
3003 warnings is to upgrade to zic derived from tz releases 2015f and later.
3008 Ulyanovsk Oblasts, Russia, both of which will switch from +03 to +04 on
3011 Altai Republic, Russia, which will switch from +06 to +07 on the same date
3014 Also, Asia/Sakhalin moves from +10 to +11 on 2016-03-27 at 02:00.
3015 (Thanks to Alexander Krivenyshev for the heads-up, and to Matt Johnson
3018 As a trial of a new system that needs less information to be made up,
3022 Haiti will not observe DST in 2016. (Thanks to Jean Antoine via
3026 (Thanks to Hannah Kreitem.) Guess future transitions will be March's last
3031 Europe/Chisinau observed DST during 1990, and switched from +04 to
3032 +03 at 1990-05-06 02:00, instead of switching from +03 to +02.
3033 (Thanks to Stepan Golosunov.)
3036 KUYT/KUYST. (Thanks to Stepan Golosunov.)
3038 Changes to code
3041 have been improved. (Thanks to J William Piggott.)
3043 tzcode now builds under MinGW. (Thanks to Ian Abbott and Esben Haabendal.)
3046 (Thanks to J William Piggott.)
3048 Changes to commentary
3050 Comments in zone tables have been improved. (Thanks to J William Piggott.)
3055 A new web page tz-how-to.html. (Thanks to Bill Seymour.)
3059 inconsistent. (Thanks to Alain Mouette for reporting the problem.)
3067 Revert our guess that it would. (Thanks to Matt Johnson.)
3069 Asia/Chita switches from +0800 to +0900 on 2016-03-27 at 02:00.
3070 (Thanks to Alexander Krivenyshev.)
3073 to be March 21 00:00 to September 21 00:00. This is likely better
3078 America/Metlakatla switched from PST all year to AKST/AKDT on
3079 2015-11-01 at 02:00. (Thanks to Steffen Thorsen.)
3082 backward compatibility link to America/Tijuana. Its contents were
3088 (Thanks to Matt Johnson.)
3095 (Thanks to Ian Abbott for an initial implementation.)
3099 A new file LICENSE makes it easier to see that the code and data
3100 are mostly public-domain. (Thanks to James Knight.) The three
3104 tz-link.htm mentions the BDE library (thanks to Andrew Paprocki),
3105 CCTZ (thanks to Tim Parenti), TimeJones.com, and has a new section
3107 thanks to Gilmore Davidson).
3113 central time in Fort Pierre, South Dakota. (Thanks to Rick
3122 (Thanks to Fatih.)
3124 Norfolk moves from +1130 to +1100 on 2015-10-04 at 02:00 local time.
3125 (Thanks to Alexander Krivenyshev.)
3128 (Thanks to Ken Rylander.)
3132 New zone America/Fort_Nelson. (Thanks to Matt Johnson.)
3136 Norfolk observed DST from 1974-10-27 02:00 to 1975-03-02 02:00.
3141 (Thanks to Bradley White for reporting the bug.)
3147 and 'altzone' to be in common storage shared with other modules,
3166 North Korea switches to +0830 on 2015-08-15. (Thanks to Steffen Thorsen.)
3167 The abbreviation remains "KST". (Thanks to Robert Elz.)
3169 Uruguay no longer observes DST. (Thanks to Steffen Thorsen
3175 (Thanks to Roman Tudos.)
3187 (Thanks to Jon Skeet and Arthur David Olson.) Constraints on
3193 zone abbreviations conforming to POSIX.1-2001 and later.
3198 (Thanks to Brian Inglis.)
3203 It does not affect timestamps. (Thanks to Howard Hinnant.)
3211 (Thanks to Kees Dekker.)
3216 to configure HAVE_ADJTIME, HAVE_SETTIMEOFDAY, or HAVE_UTMPX_H.
3217 (Thanks to Kees Dekker for pointing out the problem.)
3221 The Theory file mentions naming issues earlier, as these seem to be
3222 poorly publicized (thanks to Gilmore Davidson for reporting the problem).
3224 tz-link.htm mentions Time Zone Database Parser (thanks to Howard Hinnant).
3234 not 06-13 and 07-18 as we had guessed. (Thanks to Milamber.)
3246 When displaying data, tzselect converts it to the current locale's
3263 (Thanks to Ahmed Nazmy and Tim Parenti.)
3267 America/Whitehorse switched from UT -09 to -08 on 1967-05-28, not
3269 (Thanks to Brian Inglis and Dennis Ferguson.)
3274 have been changed from HAST/HADT to HST/HDT, as per US Government
3290 apply to 2026, 2037, 2043, etc. (Thanks to Steffen Thorsen.)
3301 The UT -04 time observed from 1932 to 1942 is now considered to
3305 1946-08-31, then reverted to standard time, then switched to -05
3321 The zone's old contents have been moved to the 'backzone' file.
3328 Mention "The Time Now". (Thanks to Brandon Ramsey.)
3336 Saturday in March at 02:00 to the last Saturday in September at 00:00.
3337 (Thanks to Ganbold Tsagaankhuu.)
3340 correct the fall 2014 transition from September 26 to October 24.
3341 Adjust future predictions accordingly. (Thanks to Steffen Thorsen.)
3346 regression. (Thanks to Stuart Bishop for reporting the problem.)
3351 Their old contents have been moved to the 'backzone' file.
3357 Correct the 1992-2010 DST abbreviation in Volgograd from "MSK" to "MSD".
3358 (Thanks to Hank W.)
3366 to be used in the same executable as standard-library time_t functions.
3372 (Thanks to Carlos Raúl Perasso.)
3374 Likewise for the recent Chilean decree. (Thanks to Eduardo Romero Urra.)
3384 will shift from Central Time with DST to Eastern Time without DST
3385 on 2015-02-01 at 02:00. (Thanks to Steffen Thorsen and Gwillim Law.)
3389 Pacific/Easter, and Antarctica/Palmer. (Thanks to Juan Correa.)
3392 (Thanks to Tim Parenti.)
3403 Their old contents have been moved to the 'backzone' file.
3413 tzselect ports to POSIX awk implementations, no longer mishandles
3415 settings to the user. (Thanks to Stefan Kuhn.)
3419 'make check' now checks for links to links in the data.
3421 (Thanks to Stephen Colebourne for pointing out the problem.)
3435 Turks & Caicos' switch from US eastern time to UT -04 year-round
3437 for 2015-11-01 at 02:00. (Thanks to Chris Walton.)
3443 entry for time in Korea. (Thanks to Sanghyuk Jung.) Also, no
3450 Their old contents have been moved to the 'backzone' file.
3459 and is more careful to distinguish UT from UTC.
3466 Pacific/Fiji will observe DST from 2014-11-02 02:00 to 2015-01-18 03:00.
3467 (Thanks to Ken Rylander for the heads-up.) Guess that future
3471 that plans to switch from UT +10 to +11 on 2014-12-28 at 02:00.
3472 (Thanks to Kiley Walbom for the heads-up.)
3478 to its more traditional value MSK on 2014-10-26 at 01:00.
3479 (Thanks to Alexander Bokovoy for the heads-up about Belarus.)
3482 Indochina, to distinguish it better from ICT (+07).
3487 (thanks to Trần Ngọc Quân for an indirect pointer to Trần Tiến Bình's
3488 authoritative book). Asia/Ho_Chi_Minh has been added to
3489 zone1970.tab, to give tzselect users in Vietnam two choices,
3495 contents have been moved to the 'backzone' file.
3501 been fixed. (Thanks to Christos Zoulas for reporting most of
3506 variable timezone to a value appropriate for that timestamp; and
3508 This change is a companion to the tzname change in 2014h, and is
3509 designed to make timezone and altzone more compatible with tzname.
3511 The tz library's functions now set errno to EOVERFLOW if they fail
3518 time2posix_z and posix2time_z. (Thanks to Christos Zoulas.)
3525 Updated URLs for NRC Canada (thanks to Matt Johnson and Brian Inglis).
3540 Their old contents have been moved to the 'backzone' file.
3550 The tz library's localtime and mktime functions now set tzname to a value
3553 (Thanks to Tim Parenti for reporting the problem.)
3558 (Thanks to Tim Parenti for reporting the problem.)
3560 An access to uninitialized data has been fixed.
3561 (Thanks to Jörg Richter for reporting the problem.)
3563 When THREAD_SAFE is defined, the code ports to the C11 memory model.
3565 and two threads race to initialize data used by gmtime-like functions.
3566 (Thanks to Andy Heninger for reporting the problems.)
3575 is now documented to possibly output D values other than 0 or 1.
3577 zdump -c's treatment of years is now documented to use the
3580 (Thanks to Arthur David Olson and Tim Parenti for reporting the problems.)
3582 Programs are now documented to use the proleptic Gregorian calendar.
3583 (Thanks to Alan Barrett for the suggestion.)
3593 Turks & Caicos is switching from US eastern time to UT -04
3603 Asia/Yekaterinburg the correction is a few minutes. (Thanks to
3610 (Thanks to Stephen Colebourne for pointing to the decree.)
3614 A new file 'backzone' contains data which may appeal to
3617 that is known to be incorrect. The new file is not recommended
3619 (Thanks to Lester Caine for the high-quality Jersey, Guernsey, and
3625 Their old contents have been moved to the 'backzone' file.
3632 Unless NETBSD_INSPIRED is defined to 0, the tz library now
3638 locking. (Thanks to Christos Zoulas for proposing NetBSD-inspired
3639 functions, and to Alan Barrett and Jonathan Lennox for helping to
3642 zdump now builds with the tz library unless USE_LTZ is defined to 0,
3644 To build zdump with the system library, use 'make CFLAGS=-DUSE_LTZ=0
3649 Define HAVE_LOCALTIME_RZ to 0 to suppress this. HAVE_LOCALTIME_RZ
3650 defaults to 1 if NETBSD_INSPIRED && USE_LTZ. When localtime_rz is
3656 If THREAD_SAFE is defined to 1, the tz library is now thread-safe.
3666 The tz code now attempts to infer TM_GMTOFF and TM_ZONE if not
3667 already defined, to make it easier to configure on common platforms.
3668 Define NO_TM_GMTOFF and NO_TM_ZONE to suppress this.
3670 Unless the new macro UNINIT_TRAP is defined to 1, the tz code now
3675 more likely to guess right for ambiguous timestamps near
3678 If HAVE_STRFTIME_L is defined to 1, the tz library now defines
3681 to 1 on recent POSIX versions, and to 0 otherwise.
3684 in Africa. (Thanks to Alan Barrett for noting the problem.)
3686 The C source code now ports to NetBSD when GCC_DEBUG_FLAGS is used,
3696 plain 'make' is more likely to work.
3716 (Thanks to Alan Barrett for pointing this out.) Also, the
3723 A new file CONTRIBUTING is distributed. (Thanks to Tim Parenti for
3724 suggesting a CONTRIBUTING file, and to Tony Finch and Walter Harms
3727 The man pages have been updated to use function prototypes,
3728 to document thread-safe variants like localtime_r, and to document
3732 The fields in Link lines have been renamed to be more descriptive
3734 and LINK-TO has become LINK-NAME.
3737 Runtime etc. (thanks to Matt Johnson); and HP-UX's tztab.
3739 Some broken URLs have been fixed in the commentary. (Thanks to
3751 at 02:00 local time. (Thanks to Alexander Krivenyshev.)
3765 subtracted). (Thanks to Tim Parenti for much of the above.)
3775 (Thanks to Rich Tibbett and many others.)
3777 Asia/Novokuznetsk shifts from NOVT to KRAT (remaining on UT +07)
3781 has been changed from URUT to XJT. (Thanks to Luther Ma.)
3786 Change time zone abbreviations in (western) Samoa to use "ST" and
3787 "DT" suffixes, as this is more likely to match common practice.
3788 Prefix "W" to (western) Samoa time when its standard-time offset
3791 America/Metlakatla now uses PST, not MeST, to abbreviate its time zone.
3801 China's five zones have been simplified to two, since the post-1970
3802 differences in the other three seem to have been imaginary. The
3806 1980 transition to UT +08 has been removed, so that it is now at
3807 +06 and not +08. (Thanks to Luther Ma and to Alois Treindl;
3813 similar to the change in release 2013e, except this time for western
3818 link Africa/Timbuktu. (Thanks to Alan Barrett, Stephen Colebourne,
3823 8:05:57 to 8:05:43, the location of Xujiahui Observatory. Its
3824 transition to standard time has been changed from 1928 to 1901.
3826 Asia/Taipei switched to JWST on 1896-01-01, then to JST on 1937-10-01,
3827 then to CST on 1945-09-21 at 01:00, and did not observe DST in 1945.
3830 (Thanks to Yu-Cheng Chuang.)
3832 Asia/Riyadh's transition to standard time is now 1947-03-14, not 1950.
3835 10-03 at 00:00. (Thanks to Konstantin Hyppönen.)
3837 Pacific/Pago_Pago has been changed from UT -11:30 to -11 for the
3838 period from 1911 to 1950.
3840 Pacific/Chatham has been changed to New Zealand standard time plus
3846 1945 it was on 11-01, not 11-03; in 1941 the transition to DST was 04-08
3849 Africa/Accra is now assumed to have observed DST from 1920 through 1935.
3854 Europe/Riga. Also, Moscow's location has been changed to its Kilometer 0
3855 point. (Thanks to Vladimir Karpinsky for the Moscow changes.)
3866 To test this, it adds coverage for the Crozet Islands and the
3867 Scattered Islands. (Thanks to Tobias Conradi and Antoine Leca.)
3869 The file 'iso3166.tab' is planned to switch from ASCII to UTF-8.
3876 is defined. (Thanks to Elliott Hughes for reporting the problem.)
3886 (Thanks to Tim Parenti for reporting the problem.)
3889 POSIX rules, or that contain a digit or '.'. (Thanks to Arthur
3897 (Thanks to John Cochran.)
3902 exceptions to the POSIX-inspired file name rules.
3905 interpreting dates. (Thanks to Arthur David Olson.)
3907 Documentation and commentary now prefer UTF-8 to US-ASCII,
3909 Code and data have not changed because of this. (Thanks to
3910 Garrett Wollman, Ian Abbott, and Guy Harris for helping to debug
3915 are not already surrounded by white space. (Thanks to suggestions by
3919 project in China from 1918 to 1949, timekeeping in Japanese-occupied
3924 (Thanks to Tim Parenti.)
3932 Proper credit has been given to DST inventor George Vernon Hudson.
3942 Several typos have been corrected. (Thanks to Tim Parenti for
3946 TimezoneJS.Date, Walltime-js, and Timezone. (Thanks to a heads-up
3948 (Thanks to a heads-up from Dirkjan Ochtman.)
3952 longer helpful for maintenance. (Thanks to Tim Parenti for the suggestion.)
3960 (Thanks to Imed Chihi.) Guess that from 2015 on Egypt will temporarily
3961 switch to standard time at 24:00 the last Thursday before Ramadan, and
3962 back to DST at 00:00 the first Friday after Ramadan.
3965 to Milamber Space Network.) Guess that from 2015 on Morocco will
3966 temporarily switch to standard time at 03:00 the last Saturday before
3967 Ramadan, and back to DST at 02:00 the first Saturday after Ramadan.
3973 "VLASST" has been repaired to be "VLAST" for Vladivostok summer time
3974 in 1991. (Thanks to Hank W. for reporting the problems.)
3980 removes stale pointers to World Time Explorer and WORLDTIME.
3990 (Thanks to Leonardo Chiquitto for reporting the bug, and to
3991 Arthur David Olson and James Cloos for suggesting improvements to the fix.)
4003 (Thanks to Ahmad El-Dardiry and Gunther Vermier.)
4008 00:00 to September's last Thursday at 23:00 standard time. Also, guess
4014 when handling low-valued timestamps. (Thanks to Arthur David Olson.)
4016 Port to Cygwin sans glibc. (Thanks to Arthur David Olson.)
4020 Remove now-confusing comment about Jordan. (Thanks to Oleksii Nochovnyi.)
4027 Crimea switches to Moscow time on 2014-03-30 at 02:00 local time.
4028 (Thanks to Alexander Krivenyshev.) Move its zone.tab entry from UA to RU.
4030 New entry for Troll station, Antarctica. (Thanks to Paul-Inge Flakstad and
4033 to wait for a while until at least the zic fixes propagate.
4038 per year for the foreseeable future. (Thanks to Andrew Main (Zefram).)
4039 Also, 'zic' avoids some unlikely failures due to integer overflow.
4049 (Thanks to Bert Katz via Pavel Kharitonov and Mike Frysinger.)
4052 to Donald MacQueen.) Instead, the Microsoft Windows Store app
4056 (Thanks to Lyle McElhaney.)
4059 (Thanks to Sebastien Willemijns.)
4066 Turkey begins DST on 2014-03-31, not 03-30. (Thanks to Faruk Pasin for
4067 the heads-up, and to Tim Parenti for simplifying the update.)
4072 (Thanks to Steffen Thorsen.)
4074 Ukraine switched from Moscow to Eastern European time on 1990-07-01
4076 (Thanks to Vladimir in Moscow via Alois Treindl.)
4078 In 1988 Israel observed DST from 04-10 to 09-04, not 04-09 to 09-03.
4079 (Thanks to Avigdor Finkelstein.)
4084 (Thanks to Logan Chien.)
4088 The settings for 'make check_web' now default to Ubuntu 13.10.
4093 (Thanks to Alan Mintz.)
4095 Chile's 2014 DST will be as predicted. (Thanks to José Miguel Garrido.)
4097 Paraguay's 2014 DST will be as predicted. (Thanks to Carlos Raúl Perasso.)
4100 Trinidad and Tobago since 1970. (Thanks to Alan Barrett for suggestion.)
4104 Mention Time.is (thanks to Even Scharning) and WX-now (thanks to
4114 (Thanks to Arthur David Olson.)
4116 Mention TZ4Net. (Thanks to Matt Johnson.)
4120 Mention zeitverschiebung.net. (Thanks to Martin Jäger.)
4122 Remove moribund links to daylight-savings-time.info and to
4125 Update two links. (Thanks to Oscar van Vlijmen.)
4135 Jordan switches back to standard time at 00:00 on December 20, 2013.
4136 The 2006-2011 transition schedule is planned to resume in 2014.
4137 (Thanks to Steffen Thorsen.)
4142 (Thanks to Steffen Thorsen.)
4158 tz-link.htm now mentions Noda Time. (Thanks to Matt Johnson.)
4165 Libya has switched its UT offset back to +02 without DST, instead
4166 of +01 with DST. (Thanks to Even Scharning.)
4169 (Thanks to Gwillim Law.)
4173 Acre and (we guess) western Amazonas will switch from UT -04 to -05
4175 (Thanks to Steffen Thorsen.)
4179 (Thanks to Yoshito Umaoka for reporting the problem.)
4185 around a bug in BusyBox awk before version 1.21.0. (Thanks to
4196 The builder can specify which programs to use, if any, instead of
4198 installed. (Thanks to Michael Forney.)
4201 (Thanks to Andrew Paprocki.)
4214 (thanks to Mike Douglass) and TimezoneJS.Date (thanks to Jim Fehrle).
4224 Morocco now observes DST from the last Sunday in March to the last
4225 Sunday in October, not April to September respectively. (Thanks
4226 to Steffen Thorsen.)
4231 (Thanks to Theo Veenker for reporting the problem, for MinGW.)
4235 to predict the far future, fixing a bug introduced in 2013e.
4240 Also, 'leapseconds.awk', so tzdata is self-contained. (Thanks to
4248 (Thanks to Andrew Main (Zefram) for asking for clarifications.)
4249 Its details about the 1989 release moved to a place of honor near
4258 (Thanks to Steffen Thorsen.)
4263 Palestine will fall back at 00:00, not 01:00. (Thanks to Steffen Thorsen.)
4268 have been changed back to 'long'. This is required for 'timezone'
4271 mistakenly changed to 'time_t' in 1987; nobody reported the
4273 'long' is 32 bits and 'time_t' is 64. (Thanks to Elliott Hughes.)
4277 Avoid long strings in leapseconds.awk to work around a mawk bug.
4278 (Thanks to Cyril Baurand.)
4285 (Thanks to Waldemar Villamayor-Venialbo.)
4305 (Thanks to David Wheeler for the heads-up.) For now, guess that
4306 Fiji will continue to spring forward the Sunday before the fourth
4312 time zone abbreviations since 1932. (Thanks to George Ziegler,
4325 new Fiji rules. This is a more compact way to represent
4334 to represent the 2013d data for America/Argentina/San_Luis.
4336 affect the current data. (Thanks to Andrew Main (Zefram) for
4340 to the tz file format in that it allows new values for the
4342 has therefore been increased from 2 to 3 as a precaution.
4343 Version-2-based client code should continue to work as before for
4351 Pacific/Johnston is now a link to Pacific/Honolulu. This corrects
4362 America/Tortola, and Europe/Vaduz. (Thanks to Alois Treindl for
4366 Change Kingston Mean Time from -5:07:12 to -5:07:11. This affects
4368 from 1890 to 1912.
4370 Change the UT offset of Bern Mean Time from 0:29:44 to 0:29:46.
4371 This affects Europe/Zurich timestamps from 1853 to 1894. (Thanks
4372 to Alois Treindl.)
4375 to 1853-07-16, overriding Shanks with data from Messerli about
4380 For Asia/Jakarta, use BMT (not JMT) for mean time from 1923 to 1932,
4390 information as before. (Thanks to Andrew Main (Zefram).)
4393 the integer time to display, a la FreeBSD.
4399 require the new version-3 binary file format. (Thanks to Arthur
4404 (Thanks to Eric Blake for suggesting to the POSIX committee to
4405 remove it, and thanks to Alan Barrett, Clive D.W. Feather, Andy
4411 changed back to the old practice of using 'long' to represent UT
4412 offsets. This had been inadvertently and mistakenly changed to
4413 'int_fast32_t'. (Thanks to Christos Zoulas.)
4420 zdump now outputs "UT" when referring to Universal Time, not "UTC".
4422 of UTC, whereas "UT", a more generic term, does. (Thanks to Steve Allen
4431 and Antarctica/South_Pole, as they are equivalent to existing
4433 these names are unchanged, so the names continue to work as before.
4439 zic now uses vfprintf to avoid allocating and freeing some memory.
4460 moved to the 'backward' file. This affects only nondefault builds
4469 Changes to the 'tzfile' man page
4474 It now refers to the 'zdump' and 'zic' man pages.
4476 Changes to the 'zic' man page
4483 Its examples are updated to match the latest data.
4486 (Thanks to Michael Deckers.)
4488 Changes to the 'Theory' file
4493 misleading (thanks to Steve Allen, Lester Caine, and Garrett
4494 Wollman for discussions that contributed to this).
4499 It refers to the 2013 edition of POSIX rather than the 2004 edition.
4503 inhabited country (thanks to Stephen Colebourne).
4511 signed integer time_t. (Thanks to Paul Goyette for reporting
4514 (Thanks to Philip Newton for correcting typos in these changes.)
4516 Documentation and commentary is more careful to distinguish UT in
4517 general from UTC in particular. (Thanks to Steve Allen.)
4520 (Thanks to Pierre-Yves Berger.)
4522 Update shapefile citations in tz-link.htm. (Thanks to Guy Harris.)
4530 not July 9 and August 8. (Thanks to Andrew Paprocki.)
4533 (Thanks to Ephraim Silverberg.)
4546 Rework the code to fix a bug with handling Australia/Macquarie on
4547 32-bit hosts (thanks to Arthur David Olson).
4549 Port to platforms like NetBSD, where time_t can be wider than long.
4552 Run 'make check_time_t_alternatives' to try this out.
4562 Remove obsolete NOID comment (thanks to Denis Excoffier).
4566 Spelling fixes (thanks to Kevin Lyda and Jonathan Leffler).
4568 Update URL for CLDR Zone->Tzid table (thanks to Yoshito Umaoka).
4575 Palestine observed DST starting March 29, 2013. (Thanks to
4578 to the first Friday on or after September 21 at 01:00.
4580 Assume that the recent change to Paraguay's DST rules is permanent,
4581 by moving the end of DST to the 4th Sunday in March every year.
4582 (Thanks to Carlos Raúl Perasso.)
4586 Fix some historical data for Palestine to agree with that of
4603 Fix times of habitation for Macquarie to agree with the Tasmania
4610 (Thanks to Tobias Conradi.)
4613 (Thanks to Tim Parenti.)
4621 This changes timestamps starting today. (Thanks to Steffen Thorsen.)
4624 (Thanks to Steffen Thorsen.) For now, assume it's just this year.
4627 try to predict Ramadan in Morocco as best we can.
4628 (Thanks to Erik Homoet for the heads-up.)
4635 Switch from FTP to HTTP for Internet RFCs.
4643 allowed to be 24:00, as per POSIX.1-2008. (Thanks to Arthur David Olson.)
4648 the same as 2012, namely Apr Sun>=23 03:00 UTC to Sep Sun>=2 04:00 UTC.
4649 (Thanks to Steffen Thorsen and Robert Elz.)
4652 (Thanks to Tobias Conradi and Arthur David Olson.)
4661 the data). (Thanks to Arthur David Olson.)
4664 by a signed time_t system. (Thanks to Doug Bailey for reporting and
4665 to Arthur David Olson for fixing.)
4667 Allow the email address for bug reports to be set by the packager.
4668 The default is tz@iana.org, as before. (Thanks to Joseph S. Myers.)
4670 Update HTML checking to be compatible with Ubuntu 12.10.
4673 relax this requirement to a safe subset of UTF-8. Without the
4679 (Thanks to Arthur David Olson.)
4682 in Russia. (Thanks to Oscar van Vlijmen and Arthur David Olson.)
4684 Add web page links to tz.js.
4686 Add "Run by the Monkeys" to tz-art. (Thanks to Arthur David Olson.)
4691 Libya moved to CET this weekend, but with DST planned next year.
4692 (Thanks to Even Scharning, Steffen Thorsen, and Tim Parenti.)
4695 standard. (Thanks to Phil Pennock.)
4699 (Thanks to Joseph S. Myers.)
4711 Various fixes to documentation and commentary.
4716 Cuba switches from DST tomorrow at 01:00. (Thanks to Steffen Thorsen.)
4719 AWK now defaults to 'awk', not 'nawk'.
4720 The shell in tzselect now defaults to /bin/bash, but this can
4723 (Thanks to Mike Frysinger.)
4728 A few makefile rules are now more portable to strict POSIX.
4735 Bahia no longer has DST. (Thanks to Kelley Cook.)
4737 Tocantins has DST. (Thanks to Rodrigo Severo.)
4739 Israel has new DST rules next year. (Thanks to Ephraim Silverberg.)
4741 Jordan stays on DST this winter. (Thanks to Steffen Thorsen.)
4751 Samoa fall 2012 and later. (Thanks to Nicholas Pereira and Robert Elz.)
4753 Palestine fall 2012. (Thanks to Steffen Thorsen.)
4757 To attack the version-number problem, this release ships the file
4769 20 this year. (Thanks to Steffen Thorsen.)
4775 (Thanks to Steffen Thorsen.)
4787 hours, along with infrastructure changes to accommodate how the tz
4794 Summer time changes for Morocco (to start late April 2012)
4806 There is just one change to tzcode2012b (compared with 2012a):
4824 The changes in tzcode2012a (compared to the previous version, 2011i)
4825 are entirely to the README and tz-art.htm and tz-link.htm files, if
4828 data distribution points & methods (and a link to DateTime::TimeZone::Tzfile
4829 has been added to tz-link.htm).
4831 In tzdata2012a (compared to the previous release, which was 2011n)
4843 Corrections to 1918 Canadian summer time end dates.
4851 has extended summer time by two weeks, now to end on Nov 13, rather than
4853 (Europe/Tiraspol) decided not to split from the rest of Moldova after
4855 in the "backward" file as a link to Europe/Chisinau. And third, the
4857 earlier planned Feb 26, to Jan 22.
4859 Apart from that, Moldova (MD) returns to a single entry in zone.tab
4871 (again, thanks to Tim Parenti, and also Denys Gavrysh).
4873 In addition, I added Europe/Tiraspol to zone.tab.
4883 zic, to Asia/Hebron and Pacific/Fiji - the possible change for Bahia, Brazil
4899 Tanzania); there are also two spelling corrections to comments in
4900 the australasia file (with thanks to Christos Zoulas).
4915 update the rules for Egypt to reflect its abandonment of DST this year
4950 change to the end of DST in Fiji in 2011
5026 changes to Dhaka
5031 changes to DST in Bangladesh
5067 added commentary for Argentina and a change to the end of DST in
5124 change to the start of Cuban DST
5176 including renaming Asia/Calcutta to Asia/Kolkata, with a backward
5187 most importantly, changes to the "southamerica" file based on
5196 mailing list (less the changes to "logwtmp.c");
5211 changes by Paul Eggert, as well as an updated link to the ICU
5219 The "leapseconds" file has been updated to incorporate the most
5223 There's an addition to tz-art.htm regarding the television show "Medium".
5231 changes to zic.c to allow hour values greater than 24 (along with
5256 Paul Eggert's proposed change to the quotation handling logic in zic.c.
5258 changes to the commentary in "leapseconds" reflecting the IERS
5259 announcement that there is to be no positive leap second at the end
5293 (minimalist) changes to zic.8 to clarify "until" information
5320 adds public domain notices to four files
5324 adds a new recording to the "arts" file (information courtesy Colin Bowern)
5334 a missing version number problem is fixed (with thanks to Bradley
5342 added new items to tz-arts.htm that were found by Paul
5351 changes to zic.c and the "europe" file to minimize differences
5361 All SCCS IDs were bumped to "8.1" for this release.
5368 an addition to the zic manual page to describe how special-case
5376 They also add "<pre>" directives to time zone data files and reflect
5377 changes to warning message logic in "zdump.c" (but with calls to
5388 5. References to dead URLs in the data files have been dealt with.
5394 (less the casts of arguments to the is* macros)
5412 changes by Paul Eggert (with a small tweak to the tz-art change)
5421 overflow/underflow checks by Arthur David Olson, minus changes to
5430 The "leapseconds" file has been edited to reflect the recently
5439 These reflect changes to limit the length of time zone abbreviations
5442 There are also changes to handle POSIX-style "quoted" timezone
5452 changes (most importantly to Nicaragua and Haiti) by Paul Eggert
5459 minor changes to Makefile and zdump.c to produce more useful output
5465 changes by Paul Eggert (a change to current DST rules in Uruguay and
5466 an update to a link to time zone software)
5481 make zic complain about links to links if the -v flag is used
5485 add an include to "localtime.c" for the benefit of gcc systems
5492 changes to the data files (most importantly to Paraguay)
5519 update to Cuba (taking effect this weekend)
5537 changes to tz-link.htm by Paul
5539 one small fix to Makefile
5544 Avoid overflow problems when TM_YEAR_BASE is added to an integer.
5576 minor changes to "Makefile" and "northamerica" (in the latter case,
5588 Thanks to Bradley White for catching the problem!
5593 Add a "--version" option (and documentation) to the zic and zdump commands.
5595 changes to overflow/underflow checking in zic
5606 a few additions and modifications to the tz-art.htm file
5620 Change zic.c to avoid creating symlinks to files that don't exist.
5630 Update the "leapseconds" file to note that there'll be no leap
5633 Change "zic.c" to deal with a problem in handling the "Asia/Bishkek" zone.
5635 Change to "difftime.c" to avoid sizeof problems.
5659 An addition to the "leapseconds" file: comments with the text of the
5664 converted to tabs.
5690 Added information in "tz-art.htm" on a Seinfeld reference to DST.
5700 a change to the default value of the defined constant HAVE_STRERROR
5702 the addition of a Dave Barry quote on DST to the tz-arts file
5707 changes to the documentation and code of strftime for C99 conformance
5723 modest tweaks to the tz-art.htm and tz-link.htm files
5737 additions to the "zic" manual page and the "Arts.htm" file
5747 changes by Paul Eggert to "europe" (most importantly, fixing
5756 The "code" file contains changes to "Makefile" and "checktab.awk" to
5767 changes circulated by Paul Eggert, although the change to handling
5770 do not make any changes to the start of DST in Brazil.
5772 In addition to Paul's changes, there are updates to "Arts.htm" and
5780 The Makefile's "make public" rule has also been changed to do a test
5797 code changes to generate correct messages for failed links
5799 updates to the URLs in Arts.htm
5806 to whom thanks!)
5820 correction to a define in the "private.h" file
5828 Move creation of the GMT link with Etc/GMT to "etcetera" (from
5829 "backward") to ensure that the GMT file is created even where folks
5836 Update the "leapseconds" file to include the newly announced
5842 addition to localtime.c by Guy Harris
5847 The Makefile is changed to produce zoneinfo-posix rather than
5848 zoneinfo/posix, and to produce zoneinfo-leaps rather than
5853 changes from Guy Harris to provide asctime_r and ctime_r
5855 A usno1998 file (substantially identical to usno1997) has been added.
5860 changes to comments (in particular, elimination of references to CIA maps).
5868 wait for the dust to settle)
5872 changes and additions to Arts.htm
5888 Olson to make the files more browser friendly
5893 minor changes to put "TZif" at the start of each timezone information file
5895 a rule has also been added to the Makefile so you can
5897 to just recompile the zone information files (rather than doing a
5903 changes to Africa by Paul Eggert
5910 Arthur David Olson's simple-minded fix allowing mktime to both
5919 a small change to a function prototype;
5921 "Music" has been renamed "Arts.htm", HTMLified, and augmented to
5927 fixes to zic's error handling
5934 A new piece of tz-related music has been added to the "Music" file.
5944 changes to "zic.c" to correct performance of the "-s" option
5989 No functional changes here; the files have simply been changed to
6041 The changes get us some of the way to fixing the problems noted in Paul
6042 Eggert's letter yesterday (in addition to a few others). The approach
6043 has been to make zic a bit smarter about figuring out what time zone
6055 The only changes are to the "northamerica" file; the time zone
6056 abbreviation for Denver is corrected to MST (and MDT), and the
6074 internationalization changes and the fix to the documentation for strftime
6093 fix to newctime.3
6107 fixes to strftime.c for correct ISO 8601 week number generation,
6108 plus support for two new formats ('G' and 'g') to give ISO 8601 year
6121 A simplification of a macro definition, a change to data for Sudan,
6149 the mktime change to scan from future to past when trying to find time zone
6178 Paul Eggert's change to the australasia file
6184 Thanks to Bradley White for forwarding news on the leap second.
6194 changes to "asia", "backward", "europe", and "southamerica"
6217 * incorporate the changes to "zdump" and "date" to make changes to
6226 Think of this as "TZ Classic" - the software has been set up not to break if
6228 left as is so as not to break existing implementations.
6243 fix missing "optind.c" and a reference to it in the Makefile
6249 changes to avoid overflow in difftime, as well as changes to cope
6268 -fwritable-strings (which is generally losing to do).
6277 to update the tables. I also fixed some more as a result of
6279 links from 'europe' to 'backward'. I corrected some scanning errors
6282 As far as the code goes, I fixed zic to allow years in the range
6283 INT_MIN to INT_MAX; this fixed a few boundary conditions around 1900.
6296 on Shanks), and there are some code changes to deal with the buglets
6308 also an update to "zdump" to cope with Kwajalein's 24-hour jump.
6309 Thanks to Paul Eggert and Peter Ilieve for the changes.
6330 (which also includes documentation) that's only of use to folks who
6331 want to recompile things and a data piece useful to anyone who can
6334 The new version has a few changes to the data files, a few
6335 portability changes, and an off-by-one fix (with thanks to
6346 there's also a change to "zic.c" that makes it portable to more systems.
6362 * corrections to some time zone data (including corrections to the rules
6365 want to do additional time zones
6369 places and as "part of the application" in others, there's no good way to
6374 And the "dysize" function has disappeared; it was present to allow
6382 the "zic" command (in the absence of a "-L" option) has been changed to omit