Branch: Tag:

2014-09-04

2014-09-04 12:43:31 by Henrik Grubbström (Grubba) <grubba@grubba.org>

Updated to tzdata2014g.

1: + News for the tz database    -  + Release 2014g - 2014-08-28 12:31:23 -0700 +  +  Changes affecting future time stamps +  +  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. +  +  Changes affecting past time stamps +  +  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. (Thanks to +  Vladimir Karpinsky.) +  +  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. +  (Thanks to Stephen Colebourne for pointing to the decree.) +  +  Asia/Dhaka ended DST on 2009-12-31 at 24:00, not 23:59. +  +  A new file 'backzone' contains data which may appeal to +  connoisseurs of old time stamps, although it is out of scope for +  the tz database, is often poorly sourced, and contains some data +  that is known to be incorrect. The new file is not recommended +  for ordinary use and its entries are not installed by default. +  (Thanks to Lester Caine for the high-quality Jersey, Guernsey, and +  Isle of Man entries.) +  +  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/Bangui, Africa/Brazzaville, +  Africa/Douala, Africa/Kinshasa, Africa/Libreville, Africa/Luanda, +  Africa/Malabo, Africa/Niamey, and Africa/Porto-Novo. +  +  Changes affecting code +  +  Unless NETBSD_INSPIRED is defined to 0, the tz library now +  supplies functions for creating and using objects that represent +  time zones. The new functions are tzalloc, tzfree, localtime_rz, +  mktime_z, and (if STD_INSPIRED is also defined) posix2time_z and +  time2posix_z. They are intended for performance: for example, +  localtime_rz (unlike localtime_r) is trivially thread-safe without +  locking. (Thanks to Christos Zoulas for proposing NetBSD-inspired +  functions, and to Alan Barrett and Jonathan Lennox for helping to +  debug the change.) +  +  zdump now builds with the tz library unless USE_LTZ is defined to 0, +  This lets zdump use tz features even if the system library lacks them. +  To build zdump with the system library, use 'make CFLAGS=-DUSE_LTZ=0 +  TZDOBJS=zdump.o CHECK_TIME_T_ALTERNATIVES='. +  +  zdump now uses localtime_rz if available, as it's significantly faster, +  and it can help zdump better diagnose invalid time zone names. +  Define HAVE_LOCALTIME_RZ to 0 to suppress this. HAVE_LOCALTIME_RZ +  defaults to 1 if NETBSD_INSPIRED && USE_LTZ. When localtime_rz is +  not available, zdump now uses localtime_r and tzset if available, +  as this is a bit cleaner and faster than plain localtime. Compile +  with -DHAVE_LOCALTIME_R=0 and/or -DHAVE_TZSET=0 if your system +  lacks these two functions. +  +  If THREAD_SAFE is defined to 1, the tz library is now thread-safe. +  Although not needed for tz's own applications, which are single-threaded, +  this supports POSIX better if the tz library is used in multithreaded apps. +  +  Some crashes have been fixed when zdump or the tz library is given +  invalid or outlandish input. +  +  The tz library no longer mishandles leap seconds on platforms with +  unsigned time_t in time zones that lack ordinary transitions after 1970. +  +  The tz code now attempts to infer TM_GMTOFF and TM_ZONE if not +  already defined, to make it easier to configure on common platforms. +  Define NO_TM_GMTOFF and NO_TM_ZONE to suppress this. +  +  Unless the new macro UNINIT_TRAP is defined to 1, the tz code now +  assumes that reading uninitialized memory yields garbage values +  but does not cause other problems such as traps. +  +  If TM_GMTOFF is defined and UNINIT_TRAP is 0, mktime is now +  more likely to guess right for ambiguous time stamps near +  transitions where tm_isdst does not change. +  +  If HAVE_STRFTIME_L is defined to 1, the tz library now defines +  strftime_l for compatibility with recent versions of POSIX. +  Only the C locale is supported, though. HAVE_STRFTIME_L defaults +  to 1 on recent POSIX versions, and to 0 otherwise. +  +  tzselect -c now uses a hybrid distance measure that works better +  in Africa. (Thanks to Alan Barrett for noting the problem.) +  +  The C source code now ports to NetBSD when GCC_DEBUG_FLAGS is used, +  or when time_tz is defined. +  +  When HAVE_UTMPX_H is set the 'date' command now builds on systems +  whose <utmpx.h> file does not define WTMPX_FILE, and when setting +  the date it updates the wtmpx file if _PATH_WTMPX is defined. +  This affects GNU/Linux and similar systems. +  +  For easier maintenance later, some C code has been simplified, +  some lint has been removed, and the code has been tweaked so that +  plain 'make' is more likely to work. +  +  The C type 'bool' is now used for boolean values, instead of 'int'. +  +  The long-obsolete LOCALE_HOME code has been removed. +  +  The long-obsolete 'gtime' function has been removed. +  +  Changes affecting build procedure +  +  'zdump' no longer links in ialloc.o, as it's not needed. +  +  'make check_time_t_alternatives' no longer assumes GNU diff. +  +  Changes affecting distribution tarballs +  +  The files checktab.awk and zoneinfo2tdf.pl are now distributed in +  the tzdata tarball instead of the tzcode tarball, since they help +  maintain the data. The NEWS and Theory files are now also +  distributed in the tzdata tarball, as they're relevant for data. +  (Thanks to Alan Barrett for pointing this out.) Also, the +  leapseconds.awk file is no longer distributed in the tzcode +  tarball, since it belongs in the tzdata tarball (where 2014f +  inadvertently also distributed it). +  +  Changes affecting documentation and commentary +  +  A new file CONTRIBUTING is distributed. (Thanks to Tim Parenti for +  suggesting a CONTRIBUTING file, and to Tony Finch and Walter Harms +  for debugging it.) +  +  The man pages have been updated to use function prototypes, +  to document thread-safe variants like localtime_r, and to document +  the NetBSD-inspired functions tzalloc, tzfree, localtime_rz, and +  mktime_z. +  +  The fields in Link lines have been renamed to be more descriptive +  and more like the parameters of 'ln'. LINK-FROM has become TARGET, +  and LINK-TO has become LINK-NAME. +  +  tz-link.htm mentions the IETF's tzdist working group; Windows +  Runtime etc. (thanks to Matt Johnson); and HP-UX's tztab. +  +  Some broken URLs have been fixed in the commentary. (Thanks to +  Lester Caine.) +  +  Commentary about Philippines DST has been updated, and commentary +  on pre-1970 time in India has been added. +  +  + Release 2014f - 2014-08-05 17:42:36 -0700 +  +  Changes affecting future time stamps +  +  Russia will subtract an hour from most of its time zones on 2014-10-26 +  at 02:00 local time. (Thanks to Alexander Krivenyshev.) +  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). (Thanks to Tim Parenti for much of the above.) +  +  Changes affecting time zone abbreviations +  +  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. +  (Thanks to Rich Tibbett and many others.) +  +  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. (Thanks to Luther Ma.) +  +  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. +  +  Changes affecting past time stamps +  +  China's five zones have been simplified to two, since the post-1970 +  differences in the other three seem to have been imaginary. The +  zones Asia/Harbin, Asia/Chongqing, and Asia/Kashgar have been +  removed; backwards-compatibility links still work, albeit with +  different behaviors for time stamps before May 1980. Asia/Urumqi's +  1980 transition to UTC+8 has been removed, so that it is now at +  UTC+6 and not UTC+8. (Thanks to Luther Ma and to Alois Treindl; +  Treindl sent helpful translations of two papers by Guo Qingsheng.) +  +  Some zones have been turned into links, when they differed from existing +  zones only for older UTC offsets where data entries were likely invented. +  These changes affect UTC offsets in pre-1970 time stamps only. This is +  similar to the change in release 2013e, except this time for western +  Africa. The affected zones are: Africa/Bamako, Africa/Banjul, +  Africa/Conakry, Africa/Dakar, Africa/Freetown, Africa/Lome, +  Africa/Nouakchott, Africa/Ouagadougou, Africa/Sao_Tome, and +  Atlantic/St_Helena. This also affects the backwards-compatibility +  link Africa/Timbuktu. (Thanks to Alan Barrett, Stephen Colebourne, +  Tim Parenti, and David Patte for reporting problems in earlier +  versions of this change.) +  +  Asia/Shanghai's pre-standard-time UT offset has been changed from +  8:05:57 to 8:05:43, the location of Xujiahui Observatory. Its +  transition to standard time has been changed from 1928 to 1901. +  +  Asia/Taipei switched to JWST on 1896-01-01, then to JST on 1937-10-01, +  then to CST on 1945-09-21 at 01:00, and did not observe DST in 1945. +  In 1946 it observed DST from 05-15 through 09-30; in 1947 +  from 04-15 through 10-31; and in 1979 from 07-01 through 09-30. +  (Thanks to Yu-Cheng Chuang.) +  +  Asia/Riyadh's transition to standard time is now 1947-03-14, not 1950. +  +  Europe/Helsinki's 1942 fall-back transition was 10-04 at 01:00, not +  10-03 at 00:00. (Thanks to Konstantin Hyppönen.) +  +  Pacific/Pago_Pago has been changed from UTC-11:30 to UTC-11 for the period +  from 1911 to 1950. +  +  Pacific/Chatham has been changed to New Zealand standard time plus +  45 minutes for the period before 1957, reflecting a 1956 remark in +  the New Zealand parliament. +  +  Europe/Budapest has several pre-1946 corrections: in 1918 the transition +  out of DST was on 09-16, not 09-29; in 1919 it was on 11-24, not 09-15; in +  1945 it was on 11-01, not 11-03; in 1941 the transition to DST was 04-08 +  not 04-06 at 02:00; and there was no DST in 1920. +  +  Africa/Accra is now assumed to have observed DST from 1920 through 1935. +  +  Time in Russia before 1927 or so has been corrected by a few seconds in +  the following zones: Europe/Moscow, Asia/Irkutsk, Asia/Tbilisi, +  Asia/Tashkent, Asia/Vladivostok, Asia/Yekaterinburg, Europe/Helsinki, and +  Europe/Riga. Also, Moscow's location has been changed to its Kilometer 0 +  point. (Thanks to Vladimir Karpinsky for the Moscow changes.) +  +  Changes affecting data format +  +  A new file 'zone1970.tab' supersedes 'zone.tab' in the installed data. +  The new file's extended format allows multiple country codes per zone. +  The older file is still installed but is deprecated; its format is +  not changing and it will still be distributed for a while, but new +  applications should use the new file. +  +  The new file format simplifies maintenance of obscure locations. +  To test this, it adds coverage for the Crozet Islands and the +  Scattered Islands. (Thanks to Tobias Conradi and Antoine Leca.) +  +  The file 'iso3166.tab' is planned to switch from ASCII to UTF-8. +  It is still ASCII now, but commentary about the switch has been added. +  The new file 'zone1970.tab' already uses UTF-8. +  +  Changes affecting code +  +  'localtime', 'mktime', etc. now use much less stack space if ALL_STATE +  is defined. (Thanks to Elliott Hughes for reporting the problem.) +  +  'zic' no longer mishandles input when ignoring case in locales that +  are not compatible with English, e.g., unibyte Turkish locales when +  compiled with HAVE_GETTEXT. +  +  Error diagnostics of 'zic' and 'yearistype' have been reworded so that +  they no longer use ASCII '-' as if it were a dash. +  +  'zic' now rejects output file names that contain '.' or '..' components. +  (Thanks to Tim Parenti for reporting the problem.) +  +  'zic -v' now warns about output file names that do not follow +  POSIX rules, or that contain a digit or '.'. (Thanks to Arthur +  David Olson for starting the ball rolling on this.) +  +  Some lint has been removed when using GCC_DEBUG_FLAGS with GCC 4.9.0. +  +  Changes affecting build procedure +  +  'zic' no longer links in localtime.o and asctime.o, as they're not needed. +  (Thanks to John Cochran.) +  +  Changes affecting documentation and commentary +  +  The 'Theory' file documents legacy names, the longstanding +  exceptions to the POSIX-inspired file name rules. +  +  The 'zic' documentation clarifies the role of time types when +  interpreting dates. (Thanks to Arthur David Olson.) +  +  Documentation and commentary now prefer UTF-8 to US-ASCII, +  allowing the use of proper accents in foreign words and names. +  Code and data have not changed because of this. (Thanks to +  Garrett Wollman, Ian Abbott, and Guy Harris for helping to debug +  this.) +  +  Non-HTML documentation and commentary now use plain-text URLs instead of +  HTML insertions, and are more consistent about bracketing URLs when they +  are not already surrounded by white space. (Thanks to suggestions by +  Steffen Nurpmeso.) +  +  There is new commentary about Xujiahui Observatory, the five time-zone +  project in China from 1918 to 1949, timekeeping in Japanese-occupied +  Shanghai, and Tibet Time in the 1950s. The sharp-eyed can spot the +  warlord Jin Shuren in the data. +  +  Commentary about the coverage of each Russian zone has been standardized. +  (Thanks to Tim Parenti). +  +  There is new commentary about contemporary timekeeping in Ethiopia. +  +  Obsolete comments about a 2007 proposal for DST in Kuwait has been removed. +  +  There is new commentary about time in Poland in 1919. +  +  Proper credit has been given to DST inventor George Vernon Hudson. +  +  Commentary about time in Metlakatla, AK and Resolute, NU has been +  improved, with a new source for the former. +  +  In zone.tab, Pacific/Easter no longer mentions Salas y Gómez, as it +  is uninhabited. +  +  Commentary about permanent Antarctic bases has been updated. +  +  Several typos have been corrected. (Thanks to Tim Parenti for +  contributing some of these fixes.) +  +  tz-link.htm now mentions the JavaScript libraries Moment Timezone, +  TimezoneJS.Date, Walltime-js, and Timezone. (Thanks to a heads-up +  from Matt Johnson.) Also, it mentions the Go 'latlong' package. +  (Thanks to a heads-up from Dirkjan Ochtman.) +  +  The files usno1988, usno1989, usno1989a, usno1995, usno1997, and usno1998 +  have been removed. These obsolescent US Naval Observatory entries were no +  longer helpful for maintenance. (Thanks to Tim Parenti for the suggestion.) +  +  + Release 2014e - 2014-06-12 21:53:52 -0700 +  +  Changes affecting near-future time stamps +  +  Egypt's 2014 Ramadan-based transitions are June 26 and July 31 at 24:00. +  (Thanks to Imed Chihi.) 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. (Thanks +  to Milamber Space Network.) 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. +  +  Changes affecting past time stamps +  +  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. (Thanks to Hank W. for reporting the problems.) +  +  Changes affecting commentary +  +  tz-link.htm now cites RFC 7265 for jCal, mentions PTP and the +  draft CalDAV extension, updates URLs for TSP, TZInfo, IATA, and +  removes stale pointers to World Time Explorer and WORLDTIME. +  +  + Release 2014d - 2014-05-27 21:34:40 -0700 +  +  Changes affecting code +  +  zic no longer generates files containing time stamps before the Big Bang. +  This works around GNOME bug 730332 +  <https://bugzilla.gnome.org/show_bug.cgi?id=730332>. +  (Thanks to Leonardo Chiquitto for reporting the bug, and to +  Arthur David Olson and James Cloos for suggesting improvements to the fix.) +  +  Changes affecting documentation +  +  tz-link.htm now mentions GNOME. +  +  + Release 2014c - 2014-05-13 07:44:13 -0700 +  +  Changes affecting near-future time stamps +  +  Egypt observes DST starting 2014-05-15 at 24:00. +  (Thanks to Ahmad El-Dardiry and Gunther Vermier.) +  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. +  +  Changes affecting code +  +  zic now generates transitions for minimum time values, eliminating guesswork +  when handling low-valued time stamps. (Thanks to Arthur David Olson.) +  +  Port to Cygwin sans glibc. (Thanks to Arthur David Olson.) +  +  Changes affecting commentary and documentation +  +  Remove now-confusing comment about Jordan. (Thanks to Oleksii Nochovnyi.) +  +  + Release 2014b - 2014-03-24 21:28:50 -0700 +  +  Changes affecting near-future time stamps +  +  Crimea switches to Moscow time on 2014-03-30 at 02:00 local time. +  (Thanks to Alexander Krivenyshev.) Move its zone.tab entry from UA to RU. +  +  New entry for Troll station, Antarctica. (Thanks to Paul-Inge Flakstad and +  Bengt-Inge Larsson.) This is currently an approximation; a better version +  will require the zic and localtime fixes mentioned below, and the plan is +  to wait for a while until at least the zic fixes propagate. +  +  Changes affecting code +  +  'zic' and 'localtime' no longer reject locations needing four transitions +  per year for the foreseeable future. (Thanks to Andrew Main (Zefram).) +  Also, 'zic' avoids some unlikely failures due to integer overflow. +  +  Changes affecting build procedure +  +  'make check' now detects Rule lines defined but never used. +  The NZAQ rules, an instance of this problem, have been removed. +  +  Changes affecting commentary and documentation +  +  Fix Tuesday/Thursday typo in description of time in Israel. +  (Thanks to Bert Katz via Pavel Kharitonov and Mike Frysinger.) +  +  Microsoft Windows 8.1 doesn't support tz database names. (Thanks +  to Donald MacQueen.) Instead, the Microsoft Windows Store app +  library supports them. +  +  Add comments about Johnston Island time in the 1960s. +  (Thanks to Lyle McElhaney.) +  +  Morocco's 2014 DST start will be as predicted. +  (Thanks to Sebastien Willemijns.) +  +  + Release 2014a - 2014-03-07 23:30:29 -0800 +  +  Changes affecting near-future time stamps +  +  Turkey begins DST on 2014-03-31, not 03-30. (Thanks to Faruk Pasin for +  the heads-up, and to Tim Parenti for simplifying the update.) +  +  Changes affecting past time stamps +  +  Fiji ended DST on 2014-01-19 at 02:00, not the previously-scheduled 03:00. +  (Thanks to Steffen Thorsen.) +  +  Ukraine switched from Moscow to Eastern European time on 1990-07-01 +  (not 1992-01-01), and observed DST during the entire next winter. +  (Thanks to Vladimir in Moscow via Alois Treindl.) +  +  In 1988 Israel observed DST from 04-10 to 09-04, not 04-09 to 09-03. +  (Thanks to Avigdor Finkelstein.) +  +  Changes affecting code +  +  A uninitialized-storage bug in 'localtime' has been fixed. +  (Thanks to Logan Chien.) +  +  Changes affecting the build procedure +  +  The settings for 'make check_web' now default to Ubuntu 13.10. +  +  Changes affecting commentary and documentation +  +  The boundary of the US Pacific time zone is given more accurately. +  (Thanks to Alan Mintz.) +  +  Chile's 2014 DST will be as predicted. (Thanks to José Miguel Garrido.) +  +  Paraguay's 2014 DST will be as predicted. (Thanks to Carlos Raúl Perasso.) +  +  Better descriptions of countries with same time zone history as +  Trinidad and Tobago since 1970. (Thanks to Alan Barrett for suggestion.) +  +  Several changes affect tz-link.htm, the main web page. +  +  Mention Time.is (thanks to Even Scharning) and WX-now (thanks to +  David Braverman). +  +  Mention xCal (Internet RFC 6321) and jCal. +  +  Microsoft has some support for tz database names. +  +  CLDR data formats include both XML and JSON. +  +  Mention Maggiolo's map of solar vs standard time. +  (Thanks to Arthur David Olson.) +  +  Mention TZ4Net. (Thanks to Matt Johnson.) +  +  Mention the timezone-olson Haskell package. +  +  Mention zeitverschiebung.net. (Thanks to Martin Jäger.) +  +  Remove moribund links to daylight-savings-time.info and to +  Simple Timer + Clocks. +  +  Update two links. (Thanks to Oscar van Vlijmen.) +  +  Fix some formatting glitches, e.g., remove random newlines from +  abbr elements' title attributes. +  +  + Release 2013i - 2013-12-17 07:25:23 -0800 +  +  Changes affecting near-future time stamps: +  +  Jordan switches back to standard time at 00:00 on December 20, 2013. +  The 2006-2011 transition schedule is planned to resume in 2014. +  (Thanks to Steffen Thorsen.) +  +  Changes affecting past time stamps: +  +  In 2004, Cuba began DST on March 28, not April 4. +  (Thanks to Steffen Thorsen.) +  +  Changes affecting code +  +  The compile-time flag NOSOLAR has been removed, as nowadays the +  benefit of slightly shrinking runtime table size is outweighed by the +  cost of disallowing potential future updates that exceed old limits. +  +  Changes affecting documentation and commentary +  +  The files solar87, solar88, and solar89 are no longer distributed. +  They were a negative experiment - that is, a demonstration that +  tz data can represent solar time only with some difficulty and error. +  Their presence in the distribution caused confusion, as Riyadh +  civil time was generally not solar time in those years. +  +  tz-link.htm now mentions Noda Time. (Thanks to Matt Johnson.) +  +  + Release 2013h - 2013-10-25 15:32:32 -0700 +  +  Changes affecting current and future time stamps: +  +  Libya has switched its time zone back to UTC+2 without DST, +  instead of UTC+1 with DST. (Thanks to Even Scharning.) +  +  Western Sahara (Africa/El_Aaiun) uses Morocco's DST rules. +  (Thanks to Gwillim Law.) +  +  Changes affecting future time stamps: +  +  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. +  (Thanks to Steffen Thorsen.) +  +  Add entries for DST transitions in Morocco in the year 2038. +  This avoids some year-2038 glitches introduced in 2013g. +  (Thanks to Yoshito Umaoka for reporting the problem.) +  +  Changes affecting API +  +  The 'tzselect' command no longer requires the 'select' command, +  and should now work with /bin/sh on more platforms. It also works +  around a bug in BusyBox awk before version 1.21.0. (Thanks to +  Patrick 'P. J.' McDermott and Alan Barrett.) +  +  Changes affecting code +  +  Fix localtime overflow bugs with 32-bit unsigned time_t. +  +  zdump no longer assumes sscanf returns maximal values on overflow. +  +  Changes affecting the build procedure +  +  The builder can specify which programs to use, if any, instead of +  'ar' and 'ranlib', and libtz.a is now built locally before being +  installed. (Thanks to Michael Forney.) +  +  A dependency typo in the 'zdump' rule has been fixed. +  (Thanks to Andrew Paprocki.) +  +  The Makefile has been simplified by assuming that 'mkdir -p' and 'cp -f' +  work as specified by POSIX.2-1992 or later; this is portable nowadays. +  +  'make clean' no longer removes 'leapseconds', since it's +  host-independent and is part of the distribution. +  +  The unused makefile macros TZCSRCS, TZDSRCS, DATESRCS have been removed. +  +  Changes affecting documentation and commentary +  +  tz-link.htm now mentions TC TIMEZONE's draft time zone service protocol +  (thanks to Mike Douglass) and TimezoneJS.Date (thanks to Jim Fehrle). +  +  Update URLs in tz-link page. Add URLs for Microsoft Windows, since +  8.1 introduces tz support. Remove URLs for Tru64 and UnixWare (no +  longer maintained) and for old advisories. SOFA now does C. +  + Release 2013g - 2013-09-30 21:08:26 -0700 +  +  Changes affecting current and near-future time stamps +  +  Morocco now observes DST from the last Sunday in March to the last +  Sunday in October, not April to September respectively. (Thanks +  to Steffen Thorsen.) +  +  Changes affecting 'zic' +  +  'zic' now runs on platforms that lack both hard links and symlinks. +  (Thanks to Theo Veenker for reporting the problem, for MinGW.) +  Also, fix some bugs on platforms that lack hard links but have symlinks. +  +  'zic -v' again warns that Asia/Tehran has no POSIX environment variable +  to predict the far future, fixing a bug introduced in 2013e. +  +  Changes affecting the build procedure +  +  The 'leapseconds' file is again put into the tzdata tarball. +  Also, 'leapseconds.awk', so tzdata is self-contained. (Thanks to +  Matt Burgess and Ian Abbott.) The timestamps of these and other +  dependent files in tarballs are adjusted more consistently. +  +  Changes affecting documentation and commentary +  +  The README file is now part of the data tarball as well as the code. +  It now states that files are public domain unless otherwise specified. +  (Thanks to Andrew Main (Zefram) for asking for clarifications.) +  Its details about the 1989 release moved to a place of honor near +  the end of NEWS. +  +  + Release 2013f - 2013-09-24 23:37:36 -0700 +  +  Changes affecting near-future time stamps +  +  Tocantins will very likely not observe DST starting this spring. +  (Thanks to Steffen Thorsen.) +  +  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. (Thanks to Steffen Thorsen.) +  +  Changes affecting API +  +  The types of the global variables 'timezone' and 'altzone' (if present) +  have been changed back to 'long'. This is required for 'timezone' +  by POSIX, and for 'altzone' by common practice, e.g., Solaris 11. +  These variables were originally 'long' in the tz code, but were +  mistakenly changed to 'time_t' in 1987; nobody reported the +  incompatibility until now. The difference matters on x32, where +  'long' is 32 bits and 'time_t' is 64. (Thanks to Elliott Hughes.) +  +  Changes affecting the build procedure +  +  Avoid long strings in leapseconds.awk to work around a mawk bug. +  (Thanks to Cyril Baurand.) +  +  Changes affecting documentation and commentary +  +  New file 'NEWS' that contains release notes like this one. +  +  Paraguay's law does not specify DST transition time; 00:00 is customary. +  (Thanks to Waldemar Villamayor-Venialbo.) +  +  Minor capitalization fixes. +  +  Changes affecting version-control only +  +  The experimental GitHub repository now contains annotated and +  signed tags for recent releases, e.g., '2013e' for Release 2013e. +  Releases are tagged starting with 2012e; earlier releases were +  done differently, and tags would either not have a simple name or +  not exactly match what was released. +  +  'make set-timestamps' is now simpler and a bit more portable. +  +  + Release 2013e - 2013-09-19 23:50:04 -0700 +  +  Changes affecting near-future time stamps +  +  This year Fiji will start DST on October 27, not October 20. +  (Thanks to David Wheeler for the heads-up.) For now, guess that +  Fiji will continue to spring forward the Sunday before the fourth +  Monday in October. +  +  Changes affecting current and future time zone abbreviations +  +  Use WIB/WITA/WIT rather than WIT/CIT/EIT for alphabetic Indonesian +  time zone abbreviations since 1932. (Thanks to George Ziegler, +  Priyadi Iman Nurcahyo, Zakaria, Jason Grimes, Martin Pitt, and +  Benny Lin.) This affects Asia/Dili, Asia/Jakarta, Asia/Jayapura, +  Asia/Makassar, and Asia/Pontianak. +  +  Use ART (UTC-3, standard time), rather than WARST (also UTC-3, but +  daylight saving time) for San Luis, Argentina since 2009. +  +  Changes affecting Godthåb time stamps after 2037 if version mismatch +  +  Allow POSIX-like TZ strings where the transition time's hour can +  range from -167 through 167, instead of the POSIX-required 0 +  through 24. E.g., TZ='FJT-12FJST,M10.3.1/146,M1.3.4/75' for the +  new Fiji rules. This is a more-compact way to represent +  far-future time stamps for America/Godthab, America/Santiago, +  Antarctica/Palmer, Asia/Gaza, Asia/Hebron, Asia/Jerusalem, +  Pacific/Easter, and Pacific/Fiji. Other zones are unaffected by +  this change. (Derived from a suggestion by Arthur David Olson.) +  +  Allow POSIX-like TZ strings where daylight saving time is in +  effect all year. E.g., TZ='WART4WARST,J1/0,J365/25' for Western +  Argentina Summer Time all year. This supports a more-compact way +  to represent the 2013d data for America/Argentina/San_Luis. +  Because of the change for San Luis noted above this change does not +  affect the current data. (Thanks to Andrew Main (Zefram) for +  suggestions that improved this change.) +  +  Where these two TZ changes take effect, there is a minor extension +  to the tz file format in that it allows new values for the +  embedded TZ-format string, and the tz file format version number +  has therefore been increased from 2 to 3 as a precaution. +  Version-2-based client code should continue to work as before for +  all time stamps before 2038. Existing version-2-based client code +  (tzcode, GNU/Linux, Solaris) has been tested on version-3-format +  files, and typically works in practice even for time stamps after +  2037; the only known exception is America/Godthab. +  +  Changes affecting time stamps before 1970 +  +  Pacific/Johnston is now a link to Pacific/Honolulu. This corrects +  some errors before 1947. +  +  Some zones have been turned into links, when they differ from existing +  zones only in older data entries that were likely invented or that +  differ only in LMT or transitions from LMT. These changes affect +  only time stamps before 1943. The affected zones are: +  Africa/Juba, America/Anguilla, America/Aruba, America/Dominica, +  America/Grenada, America/Guadeloupe, America/Marigot, +  America/Montserrat, America/St_Barthelemy, America/St_Kitts, +  America/St_Lucia, America/St_Thomas, America/St_Vincent, +  America/Tortola, and Europe/Vaduz. (Thanks to Alois Treindl for +  confirming that the old Europe/Vaduz zone was wrong and the new +  link is better for WWII-era times.) +  +  Change Kingston Mean Time from -5:07:12 to -5:07:11. This affects +  America/Cayman, America/Jamaica and America/Grand_Turk time stamps +  from 1890 to 1912. +  +  Change the UT offset of Bern Mean Time from 0:29:44 to 0:29:46. +  This affects Europe/Zurich time stamps from 1853 to 1894. (Thanks +  to Alois Treindl). +  +  Change the date of the circa-1850 Zurich transition from 1849-09-12 +  to 1853-07-16, overriding Shanks with data from Messerli about +  postal and telegraph time in Switzerland. +  +  Changes affecting time zone abbreviations before 1970 +  +  For Asia/Jakarta, use BMT (not JMT) for mean time from 1923 to 1932, +  as Jakarta was called Batavia back then. +  +  Changes affecting API +  +  The 'zic' command now outputs a dummy transition when far-future +  data can't be summarized using a TZ string, and uses a 402-year +  window rather than a 400-year window. For the current data, this +  affects only the Asia/Tehran file. It does not affect any of the +  time stamps that this file represents, so zdump outputs the same +  information as before. (Thanks to Andrew Main (Zefram).) +  +  The 'date' command has a new '-r' option, which lets you specify +  the integer time to display, a la FreeBSD. +  +  The 'tzselect' command has two new options '-c' and '-n', which lets you +  select a zone based on latitude and longitude. +  +  The 'zic' command's '-v' option now warns about constructs that +  require the new version-3 binary file format. (Thanks to Arthur +  David Olson for the suggestion.) +  +  Support for floating-point time_t has been removed. +  It was always dicey, and POSIX no longer requires it. +  (Thanks to Eric Blake for suggesting to the POSIX committee to +  remove it, and thanks to Alan Barrett, Clive D.W. Feather, Andy +  Heninger, Arthur David Olson, and Alois Treindl, for reporting +  bugs and elucidating some of the corners of the old floating-point +  implementation.) +  +  The signatures of 'offtime', 'timeoff', and 'gtime' have been +  changed back to the old practice of using 'long' to represent UT +  offsets. This had been inadvertently and mistakenly changed to +  'int_fast32_t'. (Thanks to Christos Zoulas.) +  +  The code avoids undefined behavior on integer overflow in some +  more places, including gmtime, localtime, mktime and zdump. +  +  Changes affecting the zdump utility +  +  zdump now outputs "UT" when referring to Universal Time, not "UTC". +  "UTC" does not make sense for time stamps that predate the introduction +  of UTC, whereas "UT", a more-generic term, does. (Thanks to Steve Allen +  for clarifying UT vs UTC.) +  +  Data changes affecting behavior of tzselect and similar programs +  +  Country code BQ is now called the more-common name "Caribbean Netherlands" +  rather than the more-official "Bonaire, St Eustatius & Saba". +  +  Remove from zone.tab the names America/Montreal, America/Shiprock, +  and Antarctica/South_Pole, as they are equivalent to existing +  same-country-code zones for post-1970 time stamps. The data entries for +  these names are unchanged, so the names continue to work as before. +  +  Changes affecting code internals +  +  zic -c now runs way faster on 64-bit hosts when given large numbers. +  +  zic now uses vfprintf to avoid allocating and freeing some memory. +  +  tzselect now computes the list of continents from the data, +  rather than have it hard-coded. +  +  Minor changes pacify GCC 4.7.3 and GCC 4.8.1. +  +  Changes affecting the build procedure +  +  The 'leapseconds' file is now generated automatically from a +  new file 'leap-seconds.list', which is a copy of +  <ftp://time.nist.gov/pub/leap-seconds.list>. +  A new source file 'leapseconds.awk' implements this. +  The goal is simplification of the future maintenance of 'leapseconds'. +  +  When building the 'posix' or 'right' subdirectories, if the +  subdirectory would be a copy of the default subdirectory, it is +  now made a symbolic link if that is supported. This saves about +  2 MB of file system space. +  +  The links America/Shiprock and Antarctica/South_Pole have been +  moved to the 'backward' file. This affects only nondefault builds +  that omit 'backward'. +  +  Changes affecting version-control only +  +  .gitignore now ignores 'date'. +  +  Changes affecting documentation and commentary +  +  Changes to the 'tzfile' man page +  +  It now mentions that the binary file format may be extended in +  future versions by appending data. +  +  It now refers to the 'zdump' and 'zic' man pages. +  +  Changes to the 'zic' man page +  +  It lists conditions that elicit a warning with '-v'. +  +  It says that the behavior is unspecified when duplicate names +  are given, or if the source of one link is the target of another. +  +  Its examples are updated to match the latest data. +  +  The definition of white space has been clarified slightly. +  (Thanks to Michael Deckers.) +  +  Changes to the 'Theory' file +  +  There is a new section about the accuracy of the tz database, +  describing the many ways that errors can creep in, and +  explaining why so many of the pre-1970 time stamps are wrong or +  misleading (thanks to Steve Allen, Lester Caine, and Garrett +  Wollman for discussions that contributed to this). +  +  The 'Theory' file describes LMT better (this follows a +  suggestion by Guy Harris). +  +  It refers to the 2013 edition of POSIX rather than the 2004 edition. +  +  It's mentioned that excluding 'backward' should not affect the +  other data, and it suggests at least one zone.tab name per +  inhabited country (thanks to Stephen Colebourne). +  +  Some longstanding restrictions on names are documented, e.g., +  'America/New_York' precludes 'America/New_York/Bronx'. +  +  It gives more reasons for the 1970 cutoff. +  +  It now mentions which time_t variants are supported, such as +  signed integer time_t. (Thanks to Paul Goyette for reporting +  typos in an experimental version of this change.) +  +  (Thanks to Philip Newton for correcting typos in these changes.) +  +  Documentation and commentary is more careful to distinguish UT in +  general from UTC in particular. (Thanks to Steve Allen.) +  +  Add a better source for the Zurich 1894 transition. +  (Thanks to Pierre-Yves Berger.) +  +  Update shapefile citations in tz-link.htm. (Thanks to Guy Harris.) +  +  + Release 2013d - 2013-07-05 07:38:01 -0700 +  +  Changes affecting future time stamps: +  +  Morocco's midsummer transitions this year are July 7 and August 10, +  not July 9 and August 8. (Thanks to Andrew Paprocki.) +  +  Israel now falls back on the last Sunday of October. +  (Thanks to Ephraim Silverberg.) +  +  Changes affecting past time stamps: +  +  Specify Jerusalem's location more precisely; this changes the pre-1880 +  times by 2 s. +  +  Changing affecting metadata only: +  +  Fix typos in the entries for country codes BQ and SX. +  +  Changes affecting code: +  +  Rework the code to fix a bug with handling Australia/Macquarie on +  32-bit hosts (thanks to Arthur David Olson). +  +  Port to platforms like NetBSD, where time_t can be wider than long. +  +  Add support for testing time_t types other than the system's. +  Run 'make check_time_t_alternatives' to try this out. +  Currently, the tests fail for unsigned time_t; +  this should get fixed at some point. +  +  Changes affecting documentation and commentary: +  +  Deemphasize the significance of national borders. +  +  Update the zdump man page. +  +  Remove obsolete NOID comment (thanks to Denis Excoffier). +  +  Update several URLs and comments in the web pages. +  +  Spelling fixes (thanks to Kevin Lyda and Jonathan Leffler). +  +  Update URL for CLDR Zone->Tzid table (thanks to Yoshito Umaoka). +  +  + Release 2013c - 2013-04-19 16:17:40 -0700 +  +  Changes affecting current and future time stamps: +  +  Palestine observed DST starting March 29, 2013. (Thanks to +  Steffen Thorsen.) From 2013 on, Gaza and Hebron both observe DST, +  with the predicted rules being the last Thursday in March at 24:00 +  to the first Friday on or after September 21 at 01:00. +  +  Assume that the recent change to Paraguay's DST rules is permanent, +  by moving the end of DST to the 4th Sunday in March every year. +  (Thanks to Carlos Raúl Perasso.) +  +  Changes affecting past time stamps: +  +  Fix some historical data for Palestine to agree with that of +  timeanddate.com, as follows: +  +  The spring 2008 change in Gaza and Hebron was on 00:00 Mar 28, not +  00:00 Apr 1. +  +  The fall 2009 change in Gaza and Hebron on Sep 4 was at 01:00, not +  02:00. +  +  The spring 2010 change in Hebron was 00:00 Mar 26, not 00:01 Mar 27. +  +  The spring 2011 change in Gaza was 00:01 Apr 1, not 12:01 Apr 2. +  +  The spring 2011 change in Hebron on Apr 1 was at 00:01, not 12:01. +  +  The fall 2011 change in Hebron on Sep 30 was at 00:00, not 03:00. +  +  Fix times of habitation for Macquarie to agree with the Tasmania +  Parks & Wildlife Service history, which indicates that permanent +  habitation was 1899-1919 and 1948 on. +  +  Changing affecting metadata only: +  +  Macquarie Island is politically part of Australia, not Antarctica. +  (Thanks to Tobias Conradi.) +  +  Sort Macquarie more-consistently with other parts of Australia. +  (Thanks to Tim Parenti.) +  +  + Release 2013b - 2013-03-10 22:33:40 -0700 +  +  Changes affecting current and future time stamps: +  +  Haiti uses US daylight-saving rules this year, and presumably future years. +  This changes time stamps starting today. (Thanks to Steffen Thorsen.) +  +  Paraguay will end DST on March 24 this year. +  (Thanks to Steffen Thorsen.) For now, assume it's just this year. +  +  Morocco does not observe DST during Ramadan; +  try to predict Ramadan in Morocco as best we can. +  (Thanks to Erik Homoet for the heads-up.) +  +  Changes affecting commentary: +  +  Update URLs in tz-link page. Add URLs for webOS, BB10, iOS. +  Update URL for Solaris. Mention Internet RFC 6557. +  Update Internet RFCs 2445->5545, 2822->5322. +  Switch from FTP to HTTP for Internet RFCs. +  +  + Release 2013a - 2013-02-27 09:20:35 -0800 +  +  Change affecting binary data format: +  +  The zone offset at the end of version-2-format zone files is now +  allowed to be 24:00, as per POSIX.1-2008. (Thanks to Arthur David Olson.) +  +  Changes affecting current and future time stamps: +  +  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. +  (Thanks to Steffen Thorsen and Robert Elz.) +  +  New Zones Asia/Khandyga, Asia/Ust-Nera, Europe/Busingen. +  (Thanks to Tobias Conradi and Arthur David Olson.) +  +  Many changes affect historical time stamps before 1940. +  These were deduced from: Milne J. Civil time. Geogr J. 1899 +  Feb;13(2):173-94 <http://www.jstor.org/stable/1774359>. +  +  Changes affecting the code: +  +  Fix zic bug that mishandled Egypt's 2010 changes (this also affected +  the data). (Thanks to Arthur David Olson.) +  +  Fix localtime bug when time_t is unsigned and data files were generated +  by a signed time_t system. (Thanks to Doug Bailey for reporting and +  to Arthur David Olson for fixing.) +  +  Allow the email address for bug reports to be set by the packager. +  The default is tz@iana.org, as before. (Thanks to Joseph S. Myers.) +  +  Update HTML checking to be compatible with Ubuntu 12.10. +  +  Check that files are a safe subset of ASCII. At some point we may +  relax this requirement to a safe subset of UTF-8. Without the +  check, some non-UTF-8 encodings were leaking into the distribution. +  +  Commentary changes: +  +  Restore a comment about copyright notices that was inadvertently deleted. +  (Thanks to Arthur David Olson.) +  +  Improve the commentary about which districts observe what times +  in Russia. (Thanks to Oscar van Vlijmen and Arthur David Olson). +  +  Add web page links to tz.js. +  +  Add "Run by the Monkeys" to tz-art. (Thanks to Arthur David Olson.) +  +  + Release 2012j - 2012-11-12 18:34:49 -0800 +  +  Libya moved to CET this weekend, but with DST planned next year. +  (Thanks to Even Scharning, Steffen Thorsen, and Tim Parenti.) +  +  Signatures now have the extension .asc, not .sign, as that's more +  standard. (Thanks to Phil Pennock.) +  +  The output of 'zdump --version', and of 'zic --version', now +  uses a format that is more typical for --version. +  (Thanks to Joseph S. Myers.) +  +  The output of 'tzselect --help', 'zdump --help', and 'zic --help' +  now uses tz@iana.org rather than the old elsie address. +  +  zic -v now complains about abbreviations that are less than 3 +  or more than 6 characters, as per Posix. Formerly, it checked +  for abbreviations that were more than 3. +  +  'make public' no longer puts its temporary directory under /tmp, +  and uses the just-built zic rather than the system zic. +  +  Various fixes to documentation and commentary. +  +  + Release 2012i - 2012-11-03 12:57:09 -0700 +  +  Cuba switches from DST tomorrow at 01:00. (Thanks to Steffen Thorsen.) +  +  Linker flags can now be specified via LDFLAGS. +  AWK now defaults to 'awk', not 'nawk'. +  The shell in tzselect now defaults to /bin/bash, but this can +  be overridden by specifying KSHELL. +  The main web page now mentions the unofficial GitHub repository. +  (Thanks to Mike Frysinger.) +  +  Tarball signatures can now be built by running 'make signatures'. +  There are also new makefile rules 'tarballs', 'check_public', and +  separate makefile rules for each tarball and signature file. +  A few makefile rules are now more portable to strict POSIX. +  +  The main web page now lists the canonical IANA URL. +  +  + Release 2012h - 2012-10-26 22:49:10 -0700 +  +  Bahia no longer has DST. (Thanks to Kelley Cook.) +  +  Tocantins has DST. (Thanks to Rodrigo Severo.) +  +  Israel has new DST rules next year. (Thanks to Ephraim Silverberg.) +  +  Jordan stays on DST this winter. (Thanks to Steffen Thorsen.) +  +  Web page updates. +  +  More C modernization, except that at Arthur David Olson's suggestion +  the instances of 'register' were kept. +  +  + Release 2012g - 2012-10-17 20:59:45 -0700 +  +  Samoa fall 2012 and later. (Thanks to Nicholas Pereira and Robert Elz.) +  +  Palestine fall 2012. (Thanks to Steffen Thorsen.) +  +  Assume C89. +  +  To attack the version-number problem, this release ships the file +  'Makefile' (which contains the release number) in both the tzcode and +  the tzdata tarballs. The two Makefiles are identical, and should be +  identical in any matching pair of tarballs, so it shouldn't matter +  which order you extract the tarballs. Perhaps we can come up with a +  better version-number scheme at some point; this scheme does have the +  virtue of not adding more files. +  +  + Release 2012f - 2012-09-12 23:17:03 -0700 +  +  * australasia (Pacific/Fiji): Fiji DST is October 21 through January +  20 this year. (Thanks to Steffen Thorsen.) +  +  + Release 2012e - 2012-08-02 20:44:55 -0700 +  +  * australasia (Pacific/Fakaofo): Tokelau is UTC+13, not UTC+14. +  (Thanks to Steffen Thorsen.) +  +  * Use a single version number for both code and data. +  +  * .gitignore: New file. +  +  * Remove trailing white space. +  +  + Release code2012c-data2012d - 2012-07-19 16:35:33 -0700 +  +  Changes for Morocco's time stamps, which take effect in a couple of +  hours, along with infrastructure changes to accommodate how the tz +  code and data are released on IANA. +  +  + Release data2012c - 2012-03-27 12:17:25 -0400 +  +  africa +  Summer time changes for Morocco (to start late April 2012) +  +  asia +  Changes for 2012 for Gaza & the West Bank (Hebron) and Syria +  +  northamerica +  Haiti following US/Canada rules for 2012 (and we're assuming, +  for now anyway, for the future). +  +  + Release 2012b - 2012-03-02 12:29:15 +0700 +  +  There is just one change to tzcode2012b (compared with 2012a): +  the Makefile that was accidentally included with 2012a has been +  replaced with the version that should have been there, which is +  identical with the previous version (from tzcode2011i). +  +  There are just two changes in tzdata2012b compared with 2012a. +  +  Most significantly, summer time in Cuba has been delayed 3 weeks +  (now starts April 1 rather than March 11). Since Mar 11 (the old start +  date, as listed in 2012a) is just a little over a week away, this +  change is urgent. +  +  Less importantly, an excess tab in one of the changes in zone.tab +  in 2012a has been removed. +  +  + Release 2012a - 2012-03-01 18:28:10 +0700 +  +  The changes in tzcode2012a (compared to the previous version, 2011i) +  are entirely to the README and tz-art.htm and tz-link.htm files, if +  none of those concern you, you can ignore the code update. The changes +  reflect the changed addresses for the mailing list and the code and +  data distribution points & methods (and a link to DateTime::TimeZone::Tzfile +  has been added to tz-link.htm). +  +  In tzdata2012a (compared to the previous release, which was 2011n) +  the major changes are: +  Chile 2011/2012 and 2012/2013 summer time date adjustments. +  Falkland Islands onto permanent summer time (we're assuming for the +  foreseeable future, though 2012 is all we're fairly certain of.) +  Armenia has abolished Summer Time. +  Tokelau jumped the International Date Line back last December +  (just the same as their near neighbour, Samoa). +  America/Creston is a new zone for a small area of British Columbia +  There will be a leapsecond 2012-06-30 23:59:60 UTC. +  +  Other minor changes are: +  Corrections to 1918 Canadian summer time end dates. +  Updated URL for UK time zone history (in comments) +  A few typos in Le Corre's list of free French place names (comments) +  +  + Release data2011n - 2011-10-30 14:57:54 +0700 +  +  There are three changes of note - most urgently, Cuba (America/Havana) +  has extended summer time by two weeks, now to end on Nov 13, rather than +  the (already past) Oct 30. Second, the Pridnestrovian Moldavian Republic +  (Europe/Tiraspol) decided not to split from the rest of Moldova after +  all, and consequently that zone has been removed (again) and reinstated +  in the "backward" file as a link to Europe/Chisinau. And third, the +  end date for Fiji's summer time this summer was moved forward from the +  earlier planned Feb 26, to Jan 22. +  +  Apart from that, Moldova (MD) returns to a single entry in zone.tab +  (and the incorrect syntax that was in the 2011m version of that file +  is so fixed - it would have been fixed in a different way had this +  change not happened - that's the "missing" sccs version id). +  +  + Release data2011m - 2011-10-24 21:42:16 +0700 +  +  In particular, the typos in comments in the data (2011-11-17 should have +  been 2011-10-17 as Alan Barrett noted, and spelling of Tiraspol that +  Tim Parenti noted) have been fixed, and the change for Ukraine has been +  made in all 4 Ukrainian zones, rather than just Kiev (again, thanks to +  Tim Parenti, and also Denys Gavrysh) +  +  In addition, I added Europe/Tiraspol to zone.tab. +  +  This time, all the files have new version numbers... (including the files +  otherwise unchanged in 2011m that were changed in 2011l but didn't get new +  version numbers there...) +  +  + Release data2011l - 2011-10-10 11:15:43 +0700 +  +  There are just 2 changes that cause different generated tzdata files from +  zic, to Asia/Hebron and Pacific/Fiji - the possible change for Bahia, Brazil +  is included, but commented out. Compared with the diff I sent out last week, +  this version also includes attributions for the sources for the changes +  (in much the same format as ado used, but the html tags have not been +  checked, verified, or used in any way at all, so if there are errors there, +  please let me know.) +  +  + Release data2011k - 2011-09-20 17:54:03 -0400 +  +  [not summarized] +  +  + Release data2011j - 2011-09-12 09:22:49 -0400 +  +  (contemporary changes for Samoa; past changes for Kenya, Uganda, and +  Tanzania); there are also two spelling corrections to comments in +  the australasia file (with thanks to Christos Zoulas). +  +  + Release 2011i - 2011-08-29 05:56:32 -0400 +  +  [not summarized] +  +  + Release data2011h - 2011-06-15 18:41:48 -0400 +  +  Russia and Curaçao changes +  +  + Release 2011g - 2011-04-25 09:07:22 -0400 +  +  update the rules for Egypt to reflect its abandonment of DST this year +  +  + Release 2011f - 2011-04-06 17:14:53 -0400 +  +  [not summarized] +  +  + Release 2011e - 2011-03-31 16:04:38 -0400 +  +  Morocco, Chile, and tz-link changes +  +  + Release 2011d - 2011-03-14 09:18:01 -0400 +  +  changes that impact present-day time stamps in Cuba, Samoa, and Turkey +  +  + Release 2011c - 2011-03-07 09:30:09 -0500 +  +  These do affect current time stamps in Chile and Annette Island, Canada. +  +  + Release 2011b - 2011-02-07 08:44:50 -0500 +  +  [not summarized] +  +  + Release 2011a - 2011-01-24 10:30:16 -0500 +  +  [not summarized] +  +  + Release data2010o - 2010-11-01 09:18:23 -0400 +  +  change to the end of DST in Fiji in 2011 +  +  + Release 2010n - 2010-10-25 08:19:17 -0400 +  +  [not summarized] +  +  + Release 2010m - 2010-09-27 09:24:48 -0400 +  +  Hong Kong, Vostok, and zic.c changes +  +  + Release 2010l - 2010-08-16 06:57:25 -0400 +  +  [not summarized] +  +  + Release 2010k - 2010-07-26 10:42:27 -0400 +  +  [not summarized] +  +  + Release 2010j - 2010-05-10 09:07:48 -0400 +  +  changes for Bahía de Banderas and for version naming +  +  + Release data2010i - 2010-04-16 18:50:45 -0400 +  +  the end of DST in Morocco on 2010-08-08 +  +  + Release data2010h - 2010-04-05 09:58:56 -0400 +  +  [not summarized] +  +  + Release data2010g - 2010-03-24 11:14:53 -0400 +  +  [not summarized] +  +  + Release 2010f - 2010-03-22 09:45:46 -0400 +  +  [not summarized] +  +  + Release data2010e - 2010-03-08 14:24:27 -0500 +  +  corrects the Dhaka bug found by Danvin Ruangchan +  +  + Release data2010d - 2010-03-06 07:26:01 -0500 +  +  [not summarized] +  +  + Release 2010c - 2010-03-01 09:20:58 -0500 +  +  changes including KRE's suggestion for earlier initialization of +  "goahead" and "goback" structure elements +  +  + Release code2010a - 2010-02-16 10:40:04 -0500 +  +  [not summarized] +  +  + Release data2010b - 2010-01-20 12:37:01 -0500 +  +  Mexico changes +  +  + Release data2010a - 2010-01-18 08:30:04 -0500 +  +  changes to Dhaka +  +  + Release data2009u - 2009-12-26 08:32:28 -0500 +  +  changes to DST in Bangladesh +  +  + Release 2009t - 2009-12-21 13:24:27 -0500 +  +  [not summarized] +  +  + Release data2009s - 2009-11-14 10:26:32 -0500 +  +  (cosmetic) Antarctica change and the DST-in-Fiji-in-2009-and-2010 change +  +  + Release 2009r - 2009-11-09 10:10:31 -0500 +  +  "antarctica" and "tz-link.htm" changes +  +  + Release 2009q - 2009-11-02 09:12:40 -0500 +  +  with two corrections as reported by Eric Muller and Philip Newton +  +  + Release data2009p - 2009-10-23 15:05:27 -0400 +  +  Argentina (including San Luis) changes (with the correction from +  Mariano Absatz) +  +  + Release data2009o - 2009-10-14 16:49:38 -0400 +  +  Samoa (commentary only), Pakistan, and Bangladesh changes +  +  + Release data2009n - 2009-09-22 15:13:38 -0400 +  +  added commentary for Argentina and a change to the end of DST in +  2009 in Pakistan +  +  + Release data2009m - 2009-09-03 10:23:43 -0400 +  +  Samoa and Palestine changes +  +  + Release data2009l - 2009-08-14 09:13:07 -0400 +  +  Samoa (comments only) and Egypt +  +  + Release 2009k - 2009-07-20 09:46:08 -0400 +  +  [not summarized] +  +  + Release data2009j - 2009-06-15 06:43:59 -0400 +  +  Bangladesh change (with a short turnaround since the DST change is +  impending) +  +  + Release 2009i - 2009-06-08 09:21:22 -0400 +  +  updating for DST in Bangladesh this year +  +  + Release 2009h - 2009-05-26 09:19:14 -0400 +  +  [not summarized] +  +  + Release data2009g - 2009-04-20 16:34:07 -0400 +  +  Cairo +  +  + Release data2009f - 2009-04-10 11:00:52 -0400 +  +  correct DST in Pakistan +  +  + Release 2009e - 2009-04-06 09:08:11 -0400 +  +  [not summarized] +  +  + Release 2009d - 2009-03-23 09:38:12 -0400 +  +  Morocco, Tunisia, Argentina, and American Astronomical Society changes +  +  + Release data2009c - 2009-03-16 09:47:51 -0400 +  +  change to the start of Cuban DST +  +  + Release 2009b - 2009-02-09 11:15:22 -0500 +  +  [not summarized] +  +  + Release 2009a - 2009-01-21 10:09:39 -0500 +  +  [not summarized] +  +  + Release data2008i - 2008-10-21 12:10:25 -0400 +  +  southamerica and zone.tab files, with Argentina DST rule changes and +  United States zone reordering and recommenting +  +  + Release 2008h - 2008-10-13 07:33:56 -0400 +  +  [not summarized] +  +  + Release 2008g - 2008-10-06 09:03:18 -0400 +  +  Fix a broken HTML anchor and update Brazil's DST transitions; +  there's also a slight reordering of information in tz-art.htm. +  +  + Release data2008f - 2008-09-09 22:33:26 -0400 +  +  [not summarized] +  +  + Release 2008e - 2008-07-28 14:11:17 -0400 +  +  changes by Arthur David Olson and Jesper Nørgaard Welen +  +  + Release data2008d - 2008-07-07 09:51:38 -0400 +  +  changes by Arthur David Olson, Paul Eggert, and Rodrigo Severo +  +  + Release data2008c - 2008-05-19 17:48:03 -0400 +  +  Pakistan, Morocco, and Mongolia +  +  + Release data2008b - 2008-03-24 08:30:59 -0400 +  +  including renaming Asia/Calcutta to Asia/Kolkata, with a backward +  link provided +  +  + Release 2008a - 2008-03-08 05:42:16 -0500 +  +  [not summarized] +  +  + Release 2007k - 2007-12-31 10:25:22 -0500 +  +  most importantly, changes to the "southamerica" file based on +  Argentina's readoption of daylight saving time +  +  + Release 2007j - 2007-12-03 09:51:01 -0500 +  +  1. eliminate the "P" (parameter) macro; +  +  2. the "noncontroversial" changes circulated on the time zone +  mailing list (less the changes to "logwtmp.c"); +  +  3. eliminate "too many transition" errors when "min" is used in time +  zone rules; +  +  4. changes by Paul Eggert (including updated information for Venezuela). +  +  + Release data2007i - 2007-10-30 10:28:11 -0400 +  +  changes for Cuba and Syria +  +  + Release 2007h - 2007-10-01 10:05:51 -0400 +  +  changes by Paul Eggert, as well as an updated link to the ICU +  project in tz-link.htm +  +  + Release 2007g - 2007-08-20 10:47:59 -0400 +  +  changes by Paul Eggert +  +  The "leapseconds" file has been updated to incorporate the most +  recent International Earth Rotation and Reference Systems Service +  (IERS) bulletin. +  +  There's an addition to tz-art.htm regarding the television show "Medium". +  +  + Release 2007f - 2007-05-07 10:46:46 -0400 +  +  changes by Paul Eggert (including Haiti, Turks and Caicos, and New +  Zealand) +  +  changes to zic.c to allow hour values greater than 24 (along with +  Paul's improved time value overflow checking) +  +  + Release 2007e - 2007-04-02 10:11:52 -0400 +  +  Syria and Honduras changes by Paul Eggert +  +  zic.c variable renaming changes by Arthur David Olson +  +  + Release 2007d - 2007-03-20 08:48:30 -0400 +  +  changes by Paul Eggert +  +  the elimination of white space at the ends of lines +  +  + Release 2007c - 2007-02-26 09:09:37 -0500 +  +  changes by Paul Eggert +  +  + Release 2007b - 2007-02-12 09:34:20 -0500 +  +  Paul Eggert's proposed change to the quotation handling logic in zic.c. +  +  changes to the commentary in "leapseconds" reflecting the IERS +  announcement that there is to be no positive leap second at the end +  of June 2007. +  +  + Release 2007a - 2007-01-08 12:28:29 -0500 +  +  changes by Paul Eggert +  +  Derick Rethan's Asmara change +  +  Oscar van Vlijmen's Easter Island local mean time change +  +  symbolic link changes +  +  + Release 2006p - 2006-11-27 08:54:27 -0500 +  +  changes by Paul Eggert +  +  + Release 2006o - 2006-11-06 09:18:07 -0500 +  +  changes by Paul Eggert +  +  + Release 2006n - 2006-10-10 11:32:06 -0400 +  +  changes by Paul Eggert +  +  + Release 2006m - 2006-10-02 15:32:35 -0400 +  +  changes for Uruguay, Palestine, and Egypt by Paul Eggert +  +  (minimalist) changes to zic.8 to clarify "until" information +  +  + Release data2006l - 2006-09-18 12:58:11 -0400 +  +  Paul's best-effort work on this coming weekend's Egypt time change +  +  + Release 2006k - 2006-08-28 12:19:09 -0400 +  +  changes by Paul Eggert +  +  + Release 2006j - 2006-08-21 09:56:32 -0400 +  +  changes by Paul Eggert +  +  + Release code2006i - 2006-08-07 12:30:55 -0400 +  +  localtime.c fixes +  +  Ken Pizzini's conversion script +  +  + Release code2006h - 2006-07-24 09:19:37 -0400 +  +  adds public domain notices to four files +  +  includes a fix for transition times being off by a second +  +  adds a new recording to the "arts" file (information courtesy Colin Bowern) +  +  + Release 2006g - 2006-05-08 17:18:09 -0400 +  +  northamerica changes by Paul Eggert +  +  + Release 2006f - 2006-05-01 11:46:00 -0400 +  +  a missing version number problem is fixed (with thanks to Bradley +  White for catching the problem) +  +  + Release 2006d - 2006-04-17 14:33:43 -0400 +  +  changes by Paul Eggert +  +  added new items to tz-arts.htm that were found by Paul +  +  + Release 2006c - 2006-04-03 10:09:32 -0400 +  +  two sets of data changes by Paul Eggert +  +  a fencepost error fix in zic.c +  +  changes to zic.c and the "europe" file to minimize differences +  between output produced by the old 32-bit zic and the new 64-bit +  version +  +  + Release 2006b - 2006-02-20 10:08:18 -0500 +  [tz32code2006b + tz64code2006b + tzdata2006b] +  +  64-bit code +  +  All SCCS IDs were bumped to "8.1" for this release. +  +  + Release 2006a - 2006-01-30 08:59:31 -0500 +  +  changes by Paul Eggert (in particular, Indiana time zone moves) +  +  an addition to the zic manual page to describe how special-case +  transitions are handled +  +  + Release 2005r - 2005-12-27 09:27:13 -0500 +  +  Canadian changes by Paul Eggert +  +  They also add "<pre>" directives to time zone data files and reflect +  changes to warning message logic in "zdump.c" (but with calls to +  "gettext" kept unbundled at the suggestion of Ken Pizzini). +  +  + Release 2005q - 2005-12-13 09:17:09 -0500 +  +  Nothing earth-shaking here: +  1. Electronic mail addresses have been removed. +  2. Casts of the return value of exit have been removed. +  3. Casts of the argument of is.* macros have been added. +  4. Indentation in one section of zic.c has been fixed. +  5. References to dead URLs in the data files have been dealt with. +  +  + Release 2005p - 2005-12-05 10:30:53 -0500 +  +  "systemv", "tz-link.htm", and "zdump.c" changes +  (less the casts of arguments to the is* macros) +  +  + Release 2005o - 2005-11-28 10:55:26 -0500 +  +  Georgia, Cuba, Nicaragua, and Jordan changes by Paul Eggert +  +  zdump.c lint fixes by Arthur David Olson +  +  + Release 2005n - 2005-10-03 09:44:09 -0400 +  +  changes by Paul Eggert (both the Uruguay changes and the Kyrgyzstan +  et al. changes) +  +  + Release 2005m - 2005-08-29 12:15:40 -0400 +  +  changes by Paul Eggert (with a small tweak to the tz-art change) +  +  a declaration of an unused variable has been removed from zdump.c +  +  + Release 2005l - 2005-08-22 12:06:39 -0400 +  +  changes by Paul Eggert +  +  overflow/underflow checks by Arthur David Olson, minus changes to +  the "Theory" file about the pending addition of 64-bit data (I grow +  less confident of the changes being accepted with each passing day, +  and the changes no longer increase the data files nine-fold--there's +  less than a doubling in size by my local Sun's reckoning) +  +  + Release 2005k - 2005-07-14 14:14:24 -0400 +  +  The "leapseconds" file has been edited to reflect the recently +  announced leap second at the end of 2005. +  +  I've also deleted electronic mail addresses from the files as an +  anti-spam measure. +  +  + Release 2005j - 2005-06-13 14:34:13 -0400 +  +  These reflect changes to limit the length of time zone abbreviations +  and the characters used in those abbreviations. +  +  There are also changes to handle POSIX-style "quoted" time zone +  environment variables. +  +  The changes were circulated on the time zone mailing list; the only +  change since then was the removal of a couple of minimum-length of +  abbreviation checks. +  +  + Release data2005i - 2005-04-21 15:04:16 -0400 +  +  changes (most importantly to Nicaragua and Haiti) by Paul Eggert +  +  + Release 2005h - 2005-04-04 11:24:47 -0400 +  +  changes by Paul Eggert +  +  minor changes to Makefile and zdump.c to produce more useful output +  when doing a "make typecheck" +  +  + Release 2005g - 2005-03-14 10:11:21 -0500 +  +  changes by Paul Eggert (a change to current DST rules in Uruguay and +  an update to a link to time zone software) +  +  + Release 2005f - 2005-03-01 08:45:32 -0500 +  +  data and documentation changes by Paul Eggert +  +  + Release 2005e - 2005-02-10 15:59:44 -0500 +  +  [not summarized] +  +  + Release code2005d - 2005-01-31 09:21:47 -0500 +  +  make zic complain about links to links if the -v flag is used +  +  have "make public" do more code checking +  +  add an include to "localtime.c" for the benefit of gcc systems +  +  + Release 2005c - 2005-01-17 18:36:29 -0500 +  +  get better results when mktime runs on a system where time_t is double +  +  changes to the data files (most importantly to Paraguay) +  +  + Release 2005b - 2005-01-10 09:19:54 -0500 +  +  Get localtime and gmtime working on systems with exotic time_t types. +  +  Update the leap second commentary in the "leapseconds" file. +  +  + Release 2005a - 2005-01-01 13:13:44 -0500 +  +  [not summarized] +  +  + Release code2004i - 2004-12-14 13:42:58 -0500 +  +  Deal with systems where time_t is unsigned. +  +  + Release code2004h - 2004-12-07 11:40:18 -0500 +  +  64-bit-time_t changes +  +  + Release 2004g - 2004-11-02 09:06:01 -0500 +  +  update to Cuba (taking effect this weekend) +  +  other changes by Paul Eggert +  +  correction of the spelling of Oslo +  +  changed versions of difftime.c and private.h +  +  + Release code2004f - 2004-10-21 10:25:22 -0400 +  +  Cope with wide-ranging tm_year values. +  +  + Release 2004e - 2004-10-11 14:47:21 -0400 +  +  Brazil/Argentina/Israel changes by Paul Eggert +  +  changes to tz-link.htm by Paul +  +  one small fix to Makefile +  +  + Release 2004d - 2004-09-22 08:27:29 -0400 +  +  Avoid overflow problems when TM_YEAR_BASE is added to an integer. +  +  + Release 2004c - 2004-08-11 12:06:26 -0400 +  +  asctime-related changes +  +  (variants of) some of the documentation changes suggested by Paul Eggert +  +  + Release 2004b - 2004-07-19 14:33:35 -0400 +  +  data changes by Paul Eggert - most importantly, updates for Argentina +  +  + Release 2004a - 2004-05-27 12:00:47 -0400 +  +  changes by Paul Eggert +  +  Handle DST transitions that occur at the end of a month in some +  years but at the start of the following month in other years. +  +  Add a copy of the correspondence that's the basis for claims about +  DST in the Navajo Nation. +  +  + Release 2003e - 2003-12-15 09:36:47 -0500 +  +  changes by Arthur David Olson (primarily code changes) +  +  changes by Paul Eggert (primarily data changes) +  +  minor changes to "Makefile" and "northamerica" (in the latter case, +  optimization of the "Toronto" rules) +  +  + Release 2003d - 2003-10-06 09:34:44 -0400 +  +  changes by Paul Eggert +  +  + Release 2003c - 2003-09-16 10:47:05 -0400 +  +  Fix bad returns in zic.c's inleap function. +  Thanks to Bradley White for catching the problem! +  +  + Release 2003b - 2003-09-16 07:13:44 -0400 +  +  Add a "--version" option (and documentation) to the zic and zdump commands. +  +  changes to overflow/underflow checking in zic +  +  a localtime typo fix. +  +  Update the leapseconds and tz-art.htm files. +  +  + Release 2003a - 2003-03-24 09:30:54 -0500 +  +  changes by Paul Eggert +  +  a few additions and modifications to the tz-art.htm file +  +  + Release 2002d - 2002-10-15 13:12:42 -0400 +  +  changes by Paul Eggert, less the "Britain (UK)" change in iso3166.tab +  +  There's also a new time zone quote in "tz-art.htm". +  +  + Release 2002c - 2002-04-04 11:55:20 -0500 +  +  changes by Paul Eggert +  +  Change zic.c to avoid creating symlinks to files that don't exist. +  +  + Release 2002b - 2002-01-28 12:56:03 -0500 +  +  [These change notes are for Release 2002a, which was corrupted. +  2002b was a corrected version of 2002a.] +  +  changes by Paul Eggert +  +  Update the "leapseconds" file to note that there'll be no leap +  second at the end of June, 2002. +  +  Change "zic.c" to deal with a problem in handling the "Asia/Bishkek" zone. +  +  Change to "difftime.c" to avoid sizeof problems. +  +  + Release 2001d - 2001-10-09 13:31:32 -0400 +  +  changes by Paul Eggert +  +  + Release 2001c - 2001-06-05 13:59:55 -0400 +  +  changes by Paul Eggert and Andrew Brown +  +  + Release 2001b - 2001-04-05 16:44:38 -0400 +  +  changes by Paul Eggert (modulo jnorgard's typo fix) +  +  tz-art.htm has been HTMLified. +  +  + Release 2001a - 2001-03-13 12:57:44 -0500 +  +  changes by Paul Eggert +  +  An addition to the "leapseconds" file: comments with the text of the +  latest IERS leap second notice. +  +  Trailing white space has been removed from data file lines, and +  repeated spaces in "Rule Jordan" lines in the "asia" file have been +  converted to tabs. +  +  + Release 2000h - 2000-12-14 15:33:38 -0500 +  +  changes by Paul Eggert +  +  one typo fix in the "art" file +  +  With providence, this is the last update of the millennium. +  +  + Release 2000g - 2000-10-10 11:35:22 -0400 +  +  changes by Paul Eggert +  +  correction of John Mackin's name submitted by Robert Elz +  +  Garry Shandling's Daylight Saving Time joke (!?!) from the recent +  Emmy Awards broadcast. +  +  + Release 2000f - 2000-08-10 09:31:58 -0400 +  +  changes by Paul Eggert +  +  Added information in "tz-art.htm" on a Seinfeld reference to DST. +  +  Error checking and messages in the "yearistype" script have been +  improved. +  +  + Release 2000e - 2000-07-31 09:27:54 -0400 +  +  data changes by Paul Eggert +  +  a change to the default value of the defined constant HAVE_STRERROR +  +  the addition of a Dave Barry quote on DST to the tz-arts file +  +  + Release 2000d - 2000-04-20 15:43:04 -0400 +  +  changes to the documentation and code of strftime for C99 conformance +  +  a bug fix for date.c +  +  These are based on (though modified from) changes by Paul Eggert. +  +  + Release 2000c - 2000-03-04 10:31:43 -0500 +  +  changes by Paul Eggert +  +  + Release 2000b - 2000-02-21 12:16:29 -0500 +  +  changes by Paul Eggert and Joseph Myers +  +  modest tweaks to the tz-art.htm and tz-link.htm files +  +  + Release 2000a - 2000-01-18 09:21:26 -0500 +  +  changes by Paul Eggert +  +  The two hypertext documents have also been renamed. +  +  + Release code1999i-data1999j - 1999-11-15 18:43:22 -0500 +  +  Paul Eggert's changes +  +  additions to the "zic" manual page and the "Arts.htm" file +  +  + Release code1999h-data1999i - 1999-11-08 14:55:21 -0500 +  +  [not summarized] +  +  + Release data1999h - 1999-10-07 03:50:29 -0400 +  +  changes by Paul Eggert to "europe" (most importantly, fixing +  Lithuania and Estonia) +  +  + Release 1999g - 1999-09-28 11:06:18 -0400 +  +  data changes by Paul Eggert (most importantly, the change for +  Lebanon that buys correctness for this coming Sunday) +  +  The "code" file contains changes to "Makefile" and "checktab.awk" to +  allow better checking of time zone files before they are published. +  +  + Release 1999f - 1999-09-23 09:48:14 -0400 +  +  changes by Arthur David Olson and Paul Eggert +  +  + Release 1999e - 1999-08-17 15:20:54 -0400 +  +  changes circulated by Paul Eggert, although the change to handling +  of DST-specifying time zone names has been commented out for now +  (search for "XXX" in "localtime.c" for details). These files also +  do not make any changes to the start of DST in Brazil. +  +  In addition to Paul's changes, there are updates to "Arts.htm" and +  cleanups of URLs. +  +  + Release 1999d - 1999-03-30 11:31:07 -0500 +  +  changes by Paul Eggert +  +  The Makefile's "make public" rule has also been changed to do a test +  compile of each individual time zone data file (which should help +  avoid problems such as the one we had with Nicosia). +  +  + Release 1999c - 1999-03-25 09:47:47 -0500 +  +  changes by Paul Eggert, most importantly the change for Chile. +  +  + Release 1999b - 1999-02-01 17:51:44 -0500 +  +  changes by Paul Eggert +  +  code changes (suggested by Mani Varadarajan, mani at be.com) for +  correct handling of symbolic links when building using a relative directory +  +  code changes to generate correct messages for failed links +  +  updates to the URLs in Arts.htm +  +  + Release 1999a - 1999-01-19 16:20:29 -0500 +  +  error message internationalizations and corrections in zic.c and +  zdump.c (as suggested by Vladimir Michl, vladimir.michl at upol.cz, +  to whom thanks!) +  +  + Release code1998h-data1998i - 1998-10-01 09:56:10 -0400 +  +  changes for Brazil, Chile, and Germany +  +  support for use of "24:00" in the input files for the time zone compiler +  +  + Release code1998g-data1998h - 1998-09-24 10:50:28 -0400 +  +  changes by Paul Eggert +  +  correction to a define in the "private.h" file +  +  + Release data1998g - 1998-08-11 03:28:35 -0000 +  [tzdata1998g.tar.gz is missing!] +  +  Lithuanian change provided by mgedmin at pub.osf.it +  +  Move creation of the GMT link with Etc/GMT to "etcetera" (from +  "backward") to ensure that the GMT file is created even where folks +  don't want the "backward" links (as suggested by Paul Eggert). +  +  + Release data1998f - 1998-07-20 13:50:00 -0000 +  [tzdata1998f.tar.gz is missing!] +  +  Update the "leapseconds" file to include the newly-announced +  insertion at the end of 1998. +  +  + Release code1998f - 1998-06-01 10:18:31 -0400 +  +  addition to localtime.c by Guy Harris +  +  + Release 1998e - 1998-05-28 09:56:26 -0400 +  +  The Makefile is changed to produce zoneinfo-posix rather than +  zoneinfo/posix, and to produce zoneinfo-leaps rather than +  zoneinfo/right. +  +  data changes by Paul Eggert +  +  changes from Guy Harris to provide asctime_r and ctime_r +  +  A usno1998 file (substantially identical to usno1997) has been added. +  +  + Release 1998d - 1998-05-14 11:58:34 -0400 +  +  changes to comments (in particular, elimination of references to CIA maps). +  "Arts.htm", "WWW.htm", "asia", and "australasia" are the only places +  where changes occur. +  +  + Release 1998c - 1998-02-28 12:32:26 -0500 +  +  changes by Paul Eggert (save the "French correction," on which I'll +  wait for the dust to settle) +  +  symlink changes +  +  changes and additions to Arts.htm +  +  + Release 1998b - 1998-01-17 14:31:51 -0500 +  +  URL cleanups and additions +  +  + Release 1998a - 1998-01-13 12:37:35 -0500 +  +  changes by Paul Eggert +  +  + Release code1997i-data1997k - 1997-12-29 09:53:41 -0500 +  +  changes by Paul Eggert, with minor modifications from Arthur David +  Olson to make the files more browser friendly +  +  + Release code1997h-data1997j - 1997-12-18 17:47:35 -0500 +  +  minor changes to put "TZif" at the start of each time zone information file +  +  a rule has also been added to the Makefile so you can +  make zones +  to just recompile the zone information files (rather than doing a +  full "make install" with its other effects). +  +  + Release data1997i - 1997-10-07 08:45:38 -0400 +  +  changes to Africa by Paul Eggert +  +  + Release code1997g-data1997h - 1997-09-04 16:56:54 -0400 +  +  corrections for Uruguay (and other locations) +  +  Arthur David Olson's simple-minded fix allowing mktime to both +  correctly handle leap seconds and correctly handle tm_sec values +  upon which arithmetic has been performed. +  +  + Release code1997f-data1997g - 1997-07-19 13:15:02 -0400 +  +  Paul Eggert's updates +  +  a small change to a function prototype; +  +  "Music" has been renamed "Arts.htm", HTMLified, and augmented to +  include information on Around the World in Eighty Days. +  +  + Release code1997e-data1997f - 1997-05-03 18:52:34 -0400 +  +  fixes to zic's error handling +  +  changes inspired by the item circulated on Slovenia +  +  The description of Web resources has been HTMLified for browsing +  convenience. +  +  A new piece of tz-related music has been added to the "Music" file. +  +  + Release code1997d-data1997e - 1997-03-29 12:48:52 -0500 +  +  Paul Eggert's latest suggestions +  +  + Release code1997c-data1997d - 1997-03-07 20:37:54 -0500 +  +  changes to "zic.c" to correct performance of the "-s" option +  +  a new file "usno1997" +  +  + Release data1997c - 1997-03-04 09:58:18 -0500 +  +  changes in Israel +  +  + Release 1997b - 1997-02-27 18:34:19 -0500 +  +  The data file incorporates the 1997 leap second. +  +  The code file incorporates Arthur David Olson's take on the +  zic/multiprocessor/directory-creation situation. +  +  + Release 1997a - 1997-01-21 09:11:10 -0500 +  +  Paul Eggert's Antarctica (and other changes) +  +  Arthur David Olson finessed the "getopt" issue by checking against +  both -1 and EOF (regardless of POSIX, SunOS 4.1.1's manual says -1 +  is returned while SunOS 5.5's manual says EOF is returned). +  +  + Release code1996o-data1996n - 1996-12-27 21:42:05 -0500 +  +  Paul Eggert's latest changes +  +  + Release code1996n - 1996-12-16 09:42:02 -0500 +  +  link snapping fix from Bruce Evans (via Garrett Wollman) +  +  + Release data1996m - 1996-11-24 02:37:34 -0000 +  [tzdata1996m.tar.gz is missing!] +  +  Paul Eggert's batch of changes +  +  + Release code1996m-data1996l - 1996-11-05 14:00:12 -0500 +  +  No functional changes here; the files have simply been changed to +  make more use of ISO style dates in comments. The names of the above +  files now include the year in full. +  +  + Release code96l - 1996-09-08 17:12:20 -0400 +  +  tzcode96k was missing a couple of pieces. +  +  + Release 96k - 1996-09-08 16:06:22 -0400 +  +  the latest round of changes from Paul Eggert +  +  the recent Year 2000 material +  +  + Release code96j - 1996-07-30 13:18:53 -0400 +  +  Set sp->typecnt as suggested by Timothy Patrick Murphy. +  +  + Release code96i - 1996-07-27 20:11:35 -0400 +  +  Paul's suggested patch for strftime %V week numbers +  +  + Release data96i - 1996-07-01 18:13:04 -0400 +  +  "northamerica" and "europe" changes by Paul Eggert +  +  + Release code96h - 1996-06-05 08:02:21 -0400 +  +  fix for handling transitions specified in Universal Time +  +  Some "public domain" notices have also been added. +  +  + Release code96g - 1996-05-16 14:00:26 -0400 +  +  fix for the simultaneous-DST-and-zone-change challenge +  +  + Release data96h - 1996-05-09 17:40:51 -0400 +  +  changes by Paul Eggert +  +  + Release code96f-data96g - 1996-05-03 03:09:59 -0000 +  [tzcode96f.tar.gz + tzdata96g.tar.gz are both missing!] +  +  The changes get us some of the way to fixing the problems noted in Paul +  Eggert's letter yesterday (in addition to a few others). The approach +  has been to make zic a bit smarter about figuring out what time zone +  abbreviations apply just after the time specified in the "UNTIL" part +  of a zone line. Putting the smarts in zic means avoiding having +  transition times show up in both "Zone" lines and "Rule" lines, which +  in turn avoids multiple transition time entries in time zone files. +  (This also makes the zic input files such as "europe" a bit shorter and +  should ease maintenance.) +  +  + Release data96f - 1996-04-19 19:20:03 -0000 +  [tzdata96f.tar.gz is missing!] +  +  The only changes are to the "northamerica" file; the time zone +  abbreviation for Denver is corrected to MST (and MDT), and the +  comments for Mexico have been updated. +  +  + Release data96e - 1996-03-19 17:37:26 -0500 +  +  Proposals by Paul Eggert, in particular the Portugal change that +  comes into play at the end of this month. +  +  + Release data96d - 1996-03-18 20:49:39 -0500 +  +  [not summarized] +  +  + Release code96e - 1996-02-29 15:43:27 -0000 +  [tzcode96e.tar.gz is missing!] +  +  internationalization changes and the fix to the documentation for strftime +  +  + Release code96d-data96c - 1996-02-12 11:05:27 -0500 +  +  The "code" file simply updates Bob Kridle's electronic address. +  +  The "data" file updates rules for Mexico. +  +  + Release data96b - 1996-01-27 15:44:42 -0500 +  +  Kiribati change +  +  + Release code96c - 1996-01-16 16:58:15 -0500 +  +  leap-year streamlining and binary-search changes +  +  fix to newctime.3 +  +  + Release code96b - 1996-01-10 20:42:39 -0500 +  +  fixes and enhancements from Paul Eggert, including code that +  emulates the behavior of recent versions of the SunOS "date" +  command. +  +  + Release 96a - 1996-01-06 09:08:24 -0500 +  +  Israel updates +  +  fixes to strftime.c for correct ISO 8601 week number generation, +  plus support for two new formats ('G' and 'g') to give ISO 8601 year +  numbers (which are not necessarily the same as calendar year numbers) +  +  + Release code95i-data95m - 1995-12-21 12:46:47 -0500 +  +  The latest revisions from Paul Eggert are included, the usno1995 +  file has been updated, and a new file ("WWW") covering useful URLs +  has been added. +  +  + Release code95h-data95l - 1995-12-19 18:10:12 -0500 +  +  A simplification of a macro definition, a change to data for Sudan, +  and (for last minute shoppers) notes in the "Music" file on the CD +  "Old Man Time". +  +  + Release code95g-data95k - 1995-10-30 10:32:47 -0500 +  +  (slightly reformatted) 8-bit-clean proposed patch +  +  minor patch: US/Eastern -> America/New_York +  +  snapshot of the USNO's latest data ("usno1995") +  +  some other minor cleanups +  +  + Release code95f-data95j - 1995-10-28 21:01:34 -0000 +  [tzcode95f.tar.gz + tzdata95j.tar.gz are both missing!] +  +  European cleanups +  +  support for 64-bit time_t's +  +  optimization in localtime.c +  +  + Release code95e - 1995-10-13 13:23:57 -0400 +  +  the mktime change to scan from future to past when trying to find time zone +  offsets +  +  + Release data95i - 1995-09-26 10:43:26 -0400 +  +  For Canada/Central, guess that the Sun customer's "one week too +  early" was just a approximation, and the true error is one month +  too early. This is consistent with the rest of Canada. +  +  + Release data95h - 1995-09-21 11:26:48 -0400 +  +  latest changes from Paul Eggert +  +  + Release code95d - 1995-09-14 11:14:45 -0400 +  +  the addition of a "Music" file, which documents four recorded +  versions of the tune "Save That Time". +  +  + Release data95g - 1995-09-01 17:21:36 -0400 +  +  "yearistype" correction +  +  + Release data95f - 1995-08-28 20:46:56 -0400 +  +  Paul Eggert's change to the australasia file +  +  + Release data95e - 1995-07-08 18:02:34 -0400 +  +  The only change is a leap second at the end of this year. +  Thanks to Bradley White for forwarding news on the leap second. +  +  + Release data95d - 1995-07-03 13:26:22 -0400 +  +  Paul Eggert's changes +  +  + Release data95c - 1995-07-02 19:19:28 -0400 +  +  changes to "asia", "backward", "europe", and "southamerica" +  (read: northamericacentrics need not apply) +  +  + Release code95c - 1995-03-13 14:00:46 -0500 +  +  one-line fix for sign extension problems in detzcode +  +  + Release 95b - 1995-03-04 11:22:38 -0500 +  +  Minor changes in both: +  +  The "code" file contains a workaround for the lack of "unistd.h" in +  Microsoft C++ version 7. +  +  The "data" file contains a fixed "Link" for America/Shiprock. +  +  + Release 94h - 1994-12-10 12:51:14 -0500 +  +  The files: +  +  * incorporate the changes to "zdump" and "date" to make changes to +  the "TZ" environment variable permanent; +  +  * incorporate the table changes by Paul Eggert; +  +  * include (and document) support for universal time specifications in +  data files - but do not (yet) include use of this feature in the +  data files. +  +  Think of this as "TZ Classic" - the software has been set up not to break if +  universal time shows up in its input, and data entries have been +  left as is so as not to break existing implementations. +  +  + Release data94f - 1994-08-20 12:56:09 -0400 +  +  (with thanks!) the latest data updates from Paul Eggert +  +  + Release data94e - 1994-06-04 13:13:53 -0400 +  +  [not summarized] +  +  + Release code94g - 1994-05-05 12:14:07 -0400 +  +  fix missing "optind.c" and a reference to it in the Makefile +  +  + Release code94f - 1994-05-05 13:00:33 -0000 +  [tzcode94f.tar.gz is missing!] +  +  changes to avoid overflow in difftime, as well as changes to cope +  with the 52/53 challenge in strftime +  +  + Release code94e - 1994-03-30 23:32:59 -0500 +  +  change for the benefit of PCTS +  +  + Release 94d - 1994-02-24 15:42:25 -0500 +  +  Avoid clashes with POSIX semantics for zones such as GMT+4. +  +  Some other very minor housekeeping is also present. +  +  + Release code94c - 1994-02-10 08:52:40 -0500 +  +  Fix bug where mkdirs was broken unless you compile with +  -fwritable-strings (which is generally losing to do). +  +  + Release 94b - 1994-02-07 10:04:33 -0500 +  +  work by Paul Eggert who notes: +  +  I found another book of time zone histories by E W Whitman; it's not +  as extensive as Shanks but has a few goodies of its own. I used it +  to update the tables. I also fixed some more as a result of +  correspondence with Adam David and Peter Ilieve, and move some stray +  links from 'europe' to 'backward'. I corrected some scanning errors +  in usno1989. +  +  As far as the code goes, I fixed zic to allow years in the range +  INT_MIN to INT_MAX; this fixed a few boundary conditions around 1900. +  And I cleaned up the zic documentation a little bit. +  +  + Release data94a - 1994-02-03 08:58:54 -0500 +  +  It simply incorporates the recently announced leap second into the +  "leapseconds" file. +  +  + Release 93g - 1993-11-22 17:28:27 -0500 +  +  Paul Eggert has provided a good deal of historic information (based +  on Shanks), and there are some code changes to deal with the buglets +  that crawled out in dealing with the new information. +  +  + Release 93f - 1993-10-15 12:27:46 -0400 +  +  Paul Eggert's changes +  +  + Release 93e - 1993-09-05 21:21:44 -0400 +  +  This has updated data for Israel, England, and Kwajalein. There's +  also an update to "zdump" to cope with Kwajalein's 24-hour jump. +  Thanks to Paul Eggert and Peter Ilieve for the changes. +  +  + Release 93d - 1993-06-17 23:34:17 -0400 +  +  new fix and new data on Israel +  +  + Release 93c - 1993-06-06 19:31:55 -0400 +  +  [not summarized] +  +  + Release 93b - 1993-02-02 14:53:58 -0500 +  +  updated "leapseconds" file +  +  + Release 93 - 1993-01-08 07:01:06 -0500 +  +  At kre's suggestion, the package has been split in two - a code piece +  (which also includes documentation) that's only of use to folks who +  want to recompile things and a data piece useful to anyone who can +  run "zic". +  +  The new version has a few changes to the data files, a few +  portability changes, and an off-by-one fix (with thanks to +  Tom Karzes at deshaw.com for providing a description and a +  solution). +  +  + Release 92c - 1992-11-21 17:35:36 -0000 +  [tz92c.tar.Z is missing!] +  +  The fallout from the latest round of DST transitions. +  +  There are changes for Portugal, Saskatchewan, and "Pacific-New"; +  there's also a change to "zic.c" that makes it portable to more systems. +  +  + Release 92 - 1992-04-25 18:17:03 -0000 +  [tz92.tar.Z is missing!] +  +  By popular demand (well, at any rate, following a request by kre at munnari) +  +  + The 1989 update of the time zone package featured: +  +  * POSIXization (including interpretation of POSIX-style TZ environment +  variables, provided by Guy Harris), +  * ANSIfication (including versions of "mktime" and "difftime"), +  * SVIDulation (an "altzone" variable) +  * MACHination (the "gtime" function) +  * corrections to some time zone data (including corrections to the rules +  for Great Britain and New Zealand) +  * reference data from the United States Naval Observatory for folks who +  want to do additional time zones +  * and the 1989 data for Saudi Arabia. +  +  (Since this code will be treated as "part of the implementation" in some +  places and as "part of the application" in others, there's no good way to +  name functions, such as timegm, that are not part of the proposed ANSI C +  standard; such functions have kept their old, underscore-free names in this +  update.) +  +  And the "dysize" function has disappeared; it was present to allow +  compilation of the "date" command on old BSD systems, and a version of "date" +  is now provided in the package. The "date" command is not created when you +  "make all" since it may lack options provided by the version distributed with +  your operating system, or may not interact with the system in the same way +  the native version does. +  +  Since POSIX frowns on correct leap second handling, the default behavior of +  the "zic" command (in the absence of a "-L" option) has been changed to omit +  leap second information from its output files. +  +  + ----- + Notes +  + This file contains copies of the part of each release announcement + that talks about the changes in that release. The text has been + adapted and reformatted for the purposes of this file. +  + Typically a release R consists of a pair of tarball files, + tzcodeR.tar.gz and tzdataR.tar.gz. However, some releases (e.g., + code2010a, data2012c) consist of just one or the other tarball, and a + few (e.g., code2012c-data2012d) have tarballs with mixed version + numbers. +  + Release time stamps are taken from the release's commit (for newer, + git releases), from the newest file in the tarball (for older + releases, where this info is available) or from the email announcing + the release (if all else fails; these are marked with a time zone of + -0000 and an "is missing!" comment). +  + Earlier versions of the code and data were not announced on the tz + list and are not summarized here. +  + This file is in the public domain. +  + Local Variables: + coding: utf-8 + End:   Newline at end of file added.