Module Name: src
Committed By: snj
Date: Sun Sep 21 21:20:58 UTC 2014
Added Files:
src/share/zoneinfo [netbsd-6-1]: NEWS backzone
Log Message:
Apply patch (requested by apb in ticket #1155):
Import tzdata2014g from ftp://ftp.iana.org/tz/releases/tzdata2014g.tar.gz
This includes changes for Turks & Caicos that will take effect on
2014-11-02, changes that affect times in the past, and some
re-organisation of the source files. See src/share/zoneinfo/NEWS
for more details.
To generate a diff of this commit:
cvs rdiff -u -r0 -r1.1.2.1 src/share/zoneinfo/NEWS \
src/share/zoneinfo/backzone
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Added files:
Index: src/share/zoneinfo/NEWS
diff -u /dev/null src/share/zoneinfo/NEWS:1.1.2.1
--- /dev/null Sun Sep 21 21:20:58 2014
+++ src/share/zoneinfo/NEWS Sun Sep 21 21:20:58 2014
@@ -0,0 +1,2825 @@
+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 [email protected], 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 [email protected] 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:
Index: src/share/zoneinfo/backzone
diff -u /dev/null src/share/zoneinfo/backzone:1.1.2.1
--- /dev/null Sun Sep 21 21:20:58 2014
+++ src/share/zoneinfo/backzone Sun Sep 21 21:20:58 2014
@@ -0,0 +1,428 @@
+# Zones that go back beyond the scope of the tz database
+
+# This file is in the public domain.
+
+# This file is by no means authoritative; if you think you know
+# better, go ahead and edit it (and please send any changes to
+# [email protected] for general use in the future). For more, please see
+# the file CONTRIBUTING in the tz distribution.
+
+
+# From Paul Eggert (2014-08-12):
+
+# This file contains data outside the normal scope of the tz database,
+# in that its zones do not differ from normal tz zones after 1970.
+# Links in this file point to zones in this file, superseding links in
+# the file 'backward'.
+
+# Although zones in this file may be of some use for analyzing
+# pre-1970 time stamps, they are less reliable, cover only a tiny
+# sliver of the pre-1970 era, and cannot feasibly be improved to cover
+# most of the era. Because the zones are out of normal scope for the
+# database, less effort is put into maintaining this file. Many of
+# the zones were formerly in other source files, but were removed or
+# replaced by links as their data entries were questionable and/or they
+# differed from other zones only in pre-1970 time stamps.
+
+# Unless otherwise specified, the source for the data is the following,
+# which does not itself cite sources and is often wrong:
+#
+# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
+# San Diego: ACS Publications, Inc. (2003).
+
+# This file is not intended to be compiled standalone, as it
+# assumes rules from other files. In the tz distribution, use
+# 'make posix_packrat' to compile this file.
+
+# Zones are sorted by zone name. Each zone is preceded by the
+# name of the country that the zone is in, along with any other
+# commentary and rules associated with the entry.
+#
+# As explained in the zic man page, the zone columns are:
+# Zone NAME GMTOFF RULES FORMAT [UNTIL]
+
+# Mali (southern)
+Zone Africa/Bamako -0:32:00 - LMT 1912
+ 0:00 - GMT 1934 Feb 26
+ -1:00 - WAT 1960 Jun 20
+ 0:00 - GMT
+
+# Central African Republic
+Zone Africa/Bangui 1:14:20 - LMT 1912
+ 1:00 - WAT
+
+# Gambia
+Zone Africa/Banjul -1:06:36 - LMT 1912
+ -1:06:36 - BMT 1935 # Banjul Mean Time
+ -1:00 - WAT 1964
+ 0:00 - GMT
+
+# Republic of the Congo
+Zone Africa/Brazzaville 1:01:08 - LMT 1912
+ 1:00 - WAT
+
+# Guinea
+Zone Africa/Conakry -0:54:52 - LMT 1912
+ 0:00 - GMT 1934 Feb 26
+ -1:00 - WAT 1960
+ 0:00 - GMT
+
+# Senegal
+Zone Africa/Dakar -1:09:44 - LMT 1912
+ -1:00 - WAT 1941 Jun
+ 0:00 - GMT
+
+# Cameroon
+# Whitman says they switched to 1:00 in 1920; go with Shanks & Pottenger.
+Zone Africa/Douala 0:38:48 - LMT 1912
+ 1:00 - WAT
+# Sierra Leone
+# From Paul Eggert (2014-08-12):
+# The following table is from Shanks & Pottenger, but it can't be right.
+# Whitman gives Mar 31 - Aug 31 for 1931 on.
+# The International Hydrographic Bulletin, 1932-33, p 63 says that
+# Sierra Leone would advance its clocks by 20 minutes on 1933-10-01.
+# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
+Rule SL 1935 1942 - Jun 1 0:00 0:40 SLST
+Rule SL 1935 1942 - Oct 1 0:00 0 WAT
+Rule SL 1957 1962 - Jun 1 0:00 1:00 SLST
+Rule SL 1957 1962 - Sep 1 0:00 0 GMT
+Zone Africa/Freetown -0:53:00 - LMT 1882
+ -0:53:00 - FMT 1913 Jun # Freetown Mean Time
+ -1:00 SL %s 1957
+ 0:00 SL %s
+
+# South Sudan
+Zone Africa/Juba 2:06:24 - LMT 1931
+ 2:00 Sudan CA%sT 2000 Jan 15 12:00
+ 3:00 - EAT
+
+# Democratic Republic of the Congo (west)
+Zone Africa/Kinshasa 1:01:12 - LMT 1897 Nov 9
+ 1:00 - WAT
+
+# Gabon
+Zone Africa/Libreville 0:37:48 - LMT 1912
+ 1:00 - WAT
+
+# Angola
+#
+# Shanks gives 1911-05-26 for the transition to WAT,
+# evidently confusing the date of the Portuguese decree
+# http://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf
+# with the date that it took effect, namely 1912-01-01.
+#
+Zone Africa/Luanda 0:52:56 - LMT 1892
+ 0:52:04 - AOT 1912 Jan 1 # Angola Time
+ 1:00 - WAT
+
+# Togo
+Zone Africa/Lome 0:04:52 - LMT 1893
+ 0:00 - GMT
+
+# Equatorial Guinea
+#
+# Although Shanks says that Malabo switched from UTC to UTC+1 on 1963-12-15,
+# a Google Books search says that London Calling, Issues 432-465 (1948), p 19,
+# says that Spanish Guinea was at GMT+1 back then. The Shanks data entries
+# are most likely wrong, but we have nothing better; use them here for now.
+#
+Zone Africa/Malabo 0:35:08 - LMT 1912
+ 0:00 - GMT 1963 Dec 15
+ 1:00 - WAT
+
+# Niger
+Zone Africa/Niamey 0:08:28 - LMT 1912
+ -1:00 - WAT 1934 Feb 26
+ 0:00 - GMT 1960
+ 1:00 - WAT
+
+# Mauritania
+Zone Africa/Nouakchott -1:03:48 - LMT 1912
+ 0:00 - GMT 1934 Feb 26
+ -1:00 - WAT 1960 Nov 28
+ 0:00 - GMT
+
+# Burkina Faso
+Zone Africa/Ouagadougou -0:06:04 - LMT 1912
+ 0:00 - GMT
+
+# Benin
+# Whitman says they switched to 1:00 in 1946, not 1934;
+# go with Shanks & Pottenger.
+Zone Africa/Porto-Novo 0:10:28 - LMT 1912 Jan 1
+ 0:00 - GMT 1934 Feb 26
+ 1:00 - WAT
+
+# São Tomé and Príncipe
+Zone Africa/Sao_Tome 0:26:56 - LMT 1884
+ -0:36:32 - LMT 1912 # Lisbon Mean Time
+ 0:00 - GMT
+
+# Mali (northern)
+Zone Africa/Timbuktu -0:12:04 - LMT 1912
+ 0:00 - GMT
+
+# Anguilla
+Zone America/Anguilla -4:12:16 - LMT 1912 Mar 2
+ -4:00 - AST
+
+# Chubut, Argentina
+# The name "Comodoro Rivadavia" exceeds the 14-byte POSIX limit.
+Zone America/Argentina/ComodRivadavia -4:30:00 - LMT 1894 Oct 31
+ -4:16:48 - CMT 1920 May
+ -4:00 - ART 1930 Dec
+ -4:00 Arg AR%sT 1969 Oct 5
+ -3:00 Arg AR%sT 1991 Mar 3
+ -4:00 - WART 1991 Oct 20
+ -3:00 Arg AR%sT 1999 Oct 3
+ -4:00 Arg AR%sT 2000 Mar 3
+ -3:00 - ART 2004 Jun 1
+ -4:00 - WART 2004 Jun 20
+ -3:00 - ART
+
+# Aruba
+Zone America/Aruba -4:40:24 - LMT 1912 Feb 12 # Oranjestad
+ -4:30 - ANT 1965 # Netherlands Antilles Time
+ -4:00 - AST
+
+# Canada
+Zone America/Coral_Harbour -5:32:40 - LMT 1884
+ -5:00 NT_YK E%sT 1946
+ -5:00 - EST
+
+# Dominica
+Zone America/Dominica -4:05:36 - LMT 1911 Jul 1 0:01 # Roseau
+ -4:00 - AST
+
+# Baja California
+# See 'northamerica' for why this entry is here rather than there.
+Zone America/Ensenada -7:46:28 - LMT 1922 Jan 1 0:13:32
+ -8:00 - PST 1927 Jun 10 23:00
+ -7:00 - MST 1930 Nov 16
+ -8:00 - PST 1942 Apr
+ -7:00 - MST 1949 Jan 14
+ -8:00 - PST 1996
+ -8:00 Mexico P%sT
+
+# Grenada
+Zone America/Grenada -4:07:00 - LMT 1911 Jul # St George's
+ -4:00 - AST
+
+# Guadeloupe
+Zone America/Guadeloupe -4:06:08 - LMT 1911 Jun 8 # Pointe-à-Pitre
+ -4:00 - AST
+
+# Montserrat
+# From Paul Eggert (2006-03-22):
+# In 1995 volcanic eruptions forced evacuation of Plymouth, the capital.
+# world.gazetteer.com says Cork Hill is the most populous location now.
+Zone America/Montserrat -4:08:52 - LMT 1911 Jul 1 0:01 # Cork Hill
+ -4:00 - AST
+
+# Argentina
+# This entry was intended for the following areas, but has been superseded by
+# more detailed zones.
+# Santa Fe (SF), Entre Ríos (ER), Corrientes (CN), Misiones (MN), Chaco (CC),
+# Formosa (FM), La Pampa (LP), Chubut (CH)
+Zone America/Rosario -4:02:40 - LMT 1894 Nov
+ -4:16:44 - CMT 1920 May
+ -4:00 - ART 1930 Dec
+ -4:00 Arg AR%sT 1969 Oct 5
+ -3:00 Arg AR%sT 1991 Jul
+ -3:00 - ART 1999 Oct 3 0:00
+ -4:00 Arg AR%sT 2000 Mar 3 0:00
+ -3:00 - ART
+
+# St Kitts-Nevis
+Zone America/St_Kitts -4:10:52 - LMT 1912 Mar 2 # Basseterre
+ -4:00 - AST
+
+# St Lucia
+Zone America/St_Lucia -4:04:00 - LMT 1890 # Castries
+ -4:04:00 - CMT 1912 # Castries Mean Time
+ -4:00 - AST
+
+# Virgin Is
+Zone America/St_Thomas -4:19:44 - LMT 1911 Jul # Charlotte Amalie
+ -4:00 - AST
+
+# St Vincent and the Grenadines
+Zone America/St_Vincent -4:04:56 - LMT 1890 # Kingstown
+ -4:04:56 - KMT 1912 # Kingstown Mean Time
+ -4:00 - AST
+
+# British Virgin Is
+Zone America/Tortola -4:18:28 - LMT 1911 Jul # Road Town
+ -4:00 - AST
+
+# McMurdo, Ross Island, since 1955-12
+Zone Antarctica/McMurdo 0 - zzz 1956
+ 12:00 NZ NZ%sT
+Link Antarctica/McMurdo Antarctica/South_Pole
+
+# India
+# From Paul Eggert (2014-08-21):
+# In tomorrow's The Hindu, Nitya Menon reports that India had two civil time
+# zones starting in 1884, one in Bombay and one in Calcutta, and that railways
+# used a third time zone based on Madras time (80 deg. 18'30" E). Also,
+# in 1881 Bombay briefly switched to Madras time, but switched back. See:
+# http://www.thehindu.com/news/cities/chennai/madras-375-when-madras-clocked-the-time/article6339393.ece
+#Zone Asia/Chennai [not enough info to complete]
+
+# China
+# Changbai Time ("Long-white Time", Long-white = Heilongjiang area)
+# Heilongjiang (except Mohe county), Jilin
+Zone Asia/Harbin 8:26:44 - LMT 1928 # or Haerbin
+ 8:30 - CHAT 1932 Mar # Changbai Time
+ 8:00 - CST 1940
+ 9:00 - CHAT 1966 May
+ 8:30 - CHAT 1980 May
+ 8:00 PRC C%sT
+
+# China
+# Long-shu Time (probably due to Long and Shu being two names of that area)
+# Guangxi, Guizhou, Hainan, Ningxia, Sichuan, Shaanxi, and Yunnan;
+# most of Gansu; west Inner Mongolia; west Qinghai; and the Guangdong
+# counties Deqing, Enping, Kaiping, Luoding, Taishan, Xinxing,
+# Yangchun, Yangjiang, Yu'nan, and Yunfu.
+Zone Asia/Chongqing 7:06:20 - LMT 1928 # or Chungking
+ 7:00 - LONT 1980 May # Long-shu Time
+ 8:00 PRC C%sT
+Link Asia/Chongqing Asia/Chungking
+
+# far west China
+Zone Asia/Kashgar 5:03:56 - LMT 1928 # or Kashi or Kaxgar
+ 5:30 - KAST 1940 # Kashgar Time
+ 5:00 - KAST 1980 May
+ 8:00 PRC C%sT
+
+# India
+# From Paul Eggert (2014-08-11), after a heads-up from Stephen Colebourne:
+# According to a Portuguese decree (1911-05-26)
+# http://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf
+# Portuguese India switched to GMT+5 on 1912-01-01.
+#Zone Asia/Panaji [not enough info to complete]
+
+# Israel
+Zone Asia/Tel_Aviv 2:19:04 - LMT 1880
+ 2:21 - JMT 1918
+ 2:00 Zion I%sT
+
+# Jan Mayen
+# From Whitman:
+Zone Atlantic/Jan_Mayen -1:00 - EGT
+
+# St Helena
+Zone Atlantic/St_Helena -0:22:48 - LMT 1890 # Jamestown
+ -0:22:48 - JMT 1951 # Jamestown Mean Time
+ 0:00 - GMT
+
+# Northern Ireland
+Zone Europe/Belfast -0:23:40 - LMT 1880 Aug 2
+ -0:25:21 - DMT 1916 May 21 2:00
+ # DMT = Dublin/Dunsink MT
+ -0:25:21 1:00 IST 1916 Oct 1 2:00s
+ # IST = Irish Summer Time
+ 0:00 GB-Eire %s 1968 Oct 27
+ 1:00 - BST 1971 Oct 31 2:00u
+ 0:00 GB-Eire %s 1996
+ 0:00 EU GMT/BST
+
+# Guernsey
+# Data from Joseph S. Myers
+# http://mm.icann.org/pipermail/tz/2013-September/019883.html
+# References to be added
+# LMT Location - 49.27N -2.33E - St.Peter Port
+Zone Europe/Guernsey -0:09:19 - LMT 1913 Jun 18
+ 0:00 GB-Eire %s 1940 Jul 2
+ 1:00 C-Eur CE%sT 1945 May 8
+ 0:00 GB-Eire %s 1968 Oct 27
+ 1:00 - BST 1971 Oct 31 2:00u
+ 0:00 GB-Eire %s 1996
+ 0:00 EU GMT/BST
+
+# Isle of Man
+#
+# From Lester Caine (2013-09-04):
+# The Isle of Man legislation is now on-line at
+# <http://www.legislation.gov.im>, starting with the original Statutory
+# Time Act in 1883 and including additional confirmation of some of
+# the dates of the 'Summer Time' orders originating at
+# Westminster. There is a little uncertainty as to the starting date
+# of the first summer time in 1916 which may have be announced a
+# couple of days late. There is still a substantial number of
+# documents to work through, but it is thought that every GB change
+# was also implemented on the island.
+#
+# AT4 of 1883 - The Statutory Time et cetera Act 1883 -
+# LMT Location - 54.1508N -4.4814E - Tynwald Hill ( Manx parliament )
+Zone Europe/Isle_of_Man -0:17:55 - LMT 1883 March 30 0:00s
+ 0:00 GB-Eire %s 1968 Oct 27
+ 1:00 - BST 1971 Oct 31 2:00u
+ 0:00 GB-Eire %s 1996
+ 0:00 EU GMT/BST
+
+# Jersey
+# Data from Joseph S. Myers
+# http://mm.icann.org/pipermail/tz/2013-September/019883.html
+# References to be added
+# LMT Location - 49.187N -2.107E - St. Helier
+Zone Europe/Jersey -0:08:25 - LMT 1898 Jun 11 16:00u
+ 0:00 GB-Eire %s 1940 Jul 2
+ 1:00 C-Eur CE%sT 1945 May 8
+ 0:00 GB-Eire %s 1968 Oct 27
+ 1:00 - BST 1971 Oct 31 2:00u
+ 0:00 GB-Eire %s 1996
+ 0:00 EU GMT/BST
+
+# Slovenia
+Zone Europe/Ljubljana 0:58:04 - LMT 1884
+ 1:00 - CET 1941 Apr 18 23:00
+ 1:00 C-Eur CE%sT 1945 May 8 2:00s
+ 1:00 1:00 CEST 1945 Sep 16 2:00s
+ 1:00 - CET 1982 Nov 27
+ 1:00 EU CE%sT
+
+# Bosnia and Herzegovina
+Zone Europe/Sarajevo 1:13:40 - LMT 1884
+ 1:00 - CET 1941 Apr 18 23:00
+ 1:00 C-Eur CE%sT 1945 May 8 2:00s
+ 1:00 1:00 CEST 1945 Sep 16 2:00s
+ 1:00 - CET 1982 Nov 27
+ 1:00 EU CE%sT
+
+# Macedonia
+Zone Europe/Skopje 1:25:44 - LMT 1884
+ 1:00 - CET 1941 Apr 18 23:00
+ 1:00 C-Eur CE%sT 1945 May 8 2:00s
+ 1:00 1:00 CEST 1945 Sep 16 2:00s
+ 1:00 - CET 1982 Nov 27
+ 1:00 EU CE%sT
+
+# Moldova / Transnistria
+Zone Europe/Tiraspol 1:58:32 - LMT 1880
+ 1:55 - CMT 1918 Feb 15 # Chisinau MT
+ 1:44:24 - BMT 1931 Jul 24 # Bucharest MT
+ 2:00 Romania EE%sT 1940 Aug 15
+ 2:00 1:00 EEST 1941 Jul 17
+ 1:00 C-Eur CE%sT 1944 Aug 24
+ 3:00 Russia MSK/MSD 1991 Mar 31 2:00
+ 2:00 Russia EE%sT 1992 Jan 19 2:00
+ 3:00 Russia MSK/MSD
+
+# Liechtenstein
+Zone Europe/Vaduz 0:38:04 - LMT 1894 Jun
+ 1:00 - CET 1981
+ 1:00 EU CE%sT
+
+# Croatia
+Zone Europe/Zagreb 1:03:52 - LMT 1884
+ 1:00 - CET 1941 Apr 18 23:00
+ 1:00 C-Eur CE%sT 1945 May 8 2:00s
+ 1:00 1:00 CEST 1945 Sep 16 2:00s
+ 1:00 - CET 1982 Nov 27
+ 1:00 EU CE%sT
+
+# US minor outlying islands
+Zone Pacific/Johnston -10:00 - HST
