NEWS revision 1.4.2.1
1 News for the tz database 2 3 Release 2014j - 2014-11-10 17:37:11 -0800 4 5 Changes affecting current and future time stamps 6 7 Turks & Caicos' switch from US eastern time to UTC-4 year-round 8 did not occur on 2014-11-02 at 02:00. It's currently scheduled 9 for 2015-11-01 at 02:00. (Thanks to Chris Walton.) 10 11 Changes affecting past time stamps 12 13 Many pre-1989 time stamps have been corrected for Asia/Seoul and 14 Asia/Pyongyang, based on sources for the Korean-language Wikipedia 15 entry for time in Korea. (Thanks to Sanghyuk Jung.) Also, no 16 longer guess that Pyongyang mimicked Seoul time after World War II, 17 as this is politically implausible. 18 19 Some more zones have been turned into links, when they differed 20 from existing zones only for older time stamps. As usual, 21 these changes affect UTC offsets in pre-1970 time stamps only. 22 Their old contents have been moved to the 'backzone' file. 23 The affected zones are: Africa/Addis_Ababa, Africa/Asmara, 24 Africa/Dar_es_Salaam, Africa/Djibouti, Africa/Kampala, 25 Africa/Mogadishu, Indian/Antananarivo, Indian/Comoro, and 26 Indian/Mayotte. 27 28 Changes affecting commentary 29 30 The commentary is less enthusiastic about Shanks as a source, 31 and is more careful to distinguish UT from UTC. 32 33 34 Release 2014i - 2014-10-21 22:04:57 -0700 35 36 Changes affecting future time stamps 37 38 Pacific/Fiji will observe DST from 2014-11-02 02:00 to 2015-01-18 03:00. 39 (Thanks to Ken Rylander for the heads-up.) Guess that future 40 years will use a similar pattern. 41 42 A new Zone Pacific/Bougainville, for the part of Papua New Guinea 43 that plans to switch from UTC+10 to UTC+11 on 2014-12-28 at 02:00. 44 (Thanks to Kiley Walbom for the heads-up.) 45 46 Changes affecting time zone abbreviations 47 48 Since Belarus is not changing its clocks even though Moscow is, 49 the time zone abbreviation in Europe/Minsk is changing from FET 50 to its more-traditional value MSK on 2014-10-26 at 01:00. 51 (Thanks to Alexander Bokovoy for the heads-up about Belarus.) 52 53 The new abbreviation IDT stands for the pre-1976 use of UT+8 in 54 Indochina, to distinguish it better from ICT (UT+7). 55 56 Changes affecting past time stamps 57 58 Many time stamps have been corrected for Asia/Ho_Chi_Minh before 1976 59 (thanks to Trn Ngc Qun for an indirect pointer to Trn Tin Bnh's 60 authoritative book). Asia/Ho_Chi_Minh has been added to 61 zone1970.tab, to give tzselect users in Vietnam two choices, 62 since north and south Vietnam disagreed after our 1970 cutoff. 63 64 Asia/Phnom_Penh and Asia/Vientiane have been turned into links, as 65 they differed from existing zones only for older time stamps. As 66 usual, these changes affect pre-1970 time stamps only. Their old 67 contents have been moved to the 'backzone' file. 68 69 Changes affecting code 70 71 The time-related library functions now set errno on failure, and 72 some crashes in the new tzalloc-related library functions have 73 been fixed. (Thanks to Christos Zoulas for reporting most of 74 these problems and for suggesting fixes.) 75 76 If USG_COMPAT is defined and the requested time stamp is standard time, 77 the tz library's localtime and mktime functions now set the extern 78 variable timezone to a value appropriate for that time stamp; and 79 similarly for ALTZONE, daylight saving time, and the altzone variable. 80 This change is a companion to the tzname change in 2014h, and is 81 designed to make timezone and altzone more compatible with tzname. 82 83 The tz library's functions now set errno to EOVERFLOW if they fail 84 because the result cannot be represented. ctime and ctime_r now 85 return NULL and set errno when a time stamp is out of range, rather 86 than having undefined behavior. 87 88 Some bugs associated with the new 2014g functions have been fixed. 89 This includes a bug that largely incapacitated the new functions 90 time2posix_z and posix2time_z. (Thanks to Christos Zoulas.) 91 It also includes some uses of uninitialized variables after tzalloc. 92 The new code uses the standard type 'ssize_t', which the Makefile 93 now gives porting advice about. 94 95 Changes affecting commentary 96 97 Updated URLs for NRC Canada (thanks to Matt Johnson and Brian Inglis). 98 99 100 Release 2014h - 2014-09-25 18:59:03 -0700 101 102 Changes affecting past time stamps 103 104 America/Jamaica's 1974 spring-forward transition was Jan. 6, not Apr. 28. 105 106 Shanks says Asia/Novokuznetsk switched from LMT (not "NMT") on 1924-05-01, 107 not 1920-01-06. The old entry was based on a misinterpretation of Shanks. 108 109 Some more zones have been turned into links, when they differed 110 from existing zones only for older time stamps. As usual, 111 these changes affect UTC offsets in pre-1970 time stamps only. 112 Their old contents have been moved to the 'backzone' file. 113 The affected zones are: Africa/Blantyre, Africa/Bujumbura, 114 Africa/Gaborone, Africa/Harare, Africa/Kigali, Africa/Lubumbashi, 115 Africa/Lusaka, Africa/Maseru, and Africa/Mbabane. 116 117 Changes affecting code 118 119 zdump -V and -v now output gmtoff= values on all platforms, 120 not merely on platforms defining TM_GMTOFF. 121 122 The tz library's localtime and mktime functions now set tzname to a value 123 appropriate for the requested time stamp, and zdump now uses this 124 on platforms not defining TM_ZONE, fixing a 2014g regression. 125 (Thanks to Tim Parenti for reporting the problem.) 126 127 The tz library no longer sets tzname if localtime or mktime fails. 128 129 zdump -c no longer mishandles transitions near year boundaries. 130 (Thanks to Tim Parenti for reporting the problem.) 131 132 An access to uninitalized data has been fixed. 133 (Thanks to Jrg Richter for reporting the problem.) 134 135 When THREAD_SAFE is defined, the code ports to the C11 memory model. 136 A memory leak has been fixed if ALL_STATE and THREAD_SAFE are defined 137 and two threads race to initialize data used by gmtime-like functions. 138 (Thanks to Andy Heninger for reporting the problems.) 139 140 Changes affecting build procedure 141 142 'make check' now checks better for properly-sorted data. 143 144 Changes affecting documentation and commentary 145 146 zdump's gmtoff=N output is now documented, and its isdst=D output 147 is now documented to possibly output D values other than 0 or 1. 148 149 zdump -c's treatment of years is now documented to use the 150 Gregorian calendar and Universal Time without leap seconds, 151 and its behavior at cutoff boundaries is now documented better. 152 (Thanks to Arthur David Olson and Tim Parenti for reporting the problems.) 153 154 Programs are now documented to use the proleptic Gregorian calendar. 155 (Thanks to Alan Barrett for the suggestion.) 156 157 Fractional-second GMT offsets have been documented for civil time 158 in 19th-century Chennai, Jakarta, and New York. 159 160 161 Release 2014g - 2014-08-28 12:31:23 -0700 162 163 Changes affecting future time stamps 164 165 Turks & Caicos is switching from US eastern time to UTC-4 year-round, 166 modeled as a switch from EST/EDT to AST on 2014-11-02 at 02:00. 167 [As noted in 2014j, this switch was later delayed.] 168 169 Changes affecting past time stamps 170 171 Time in Russia or the USSR before 1926 or so has been corrected by 172 a few seconds in the following zones: Asia/Irkutsk, 173 Asia/Krasnoyarsk, Asia/Omsk, Asia/Samarkand, Asia/Tbilisi, 174 Asia/Vladivostok, Asia/Yakutsk, Europe/Riga, Europe/Samara. For 175 Asia/Yekaterinburg the correction is a few minutes. (Thanks to 176 Vladimir Karpinsky.) 177 178 The Portuguese decree of 1911-05-26 took effect on 1912-01-01. 179 This affects 1911 time stamps in Africa/Bissau, Africa/Luanda, 180 Atlantic/Azores, and Atlantic/Madeira. Also, Lisbon's pre-1912 181 GMT offset was -0:36:45 (rounded from -0:36:44.68), not -0:36:32. 182 (Thanks to Stephen Colebourne for pointing to the decree.) 183 184 Asia/Dhaka ended DST on 2009-12-31 at 24:00, not 23:59. 185 186 A new file 'backzone' contains data which may appeal to 187 connoisseurs of old time stamps, although it is out of scope for 188 the tz database, is often poorly sourced, and contains some data 189 that is known to be incorrect. The new file is not recommended 190 for ordinary use and its entries are not installed by default. 191 (Thanks to Lester Caine for the high-quality Jersey, Guernsey, and 192 Isle of Man entries.) 193 194 Some more zones have been turned into links, when they differed 195 from existing zones only for older time stamps. As usual, 196 these changes affect UTC offsets in pre-1970 time stamps only. 197 Their old contents have been moved to the 'backzone' file. 198 The affected zones are: Africa/Bangui, Africa/Brazzaville, 199 Africa/Douala, Africa/Kinshasa, Africa/Libreville, Africa/Luanda, 200 Africa/Malabo, Africa/Niamey, and Africa/Porto-Novo. 201 202 Changes affecting code 203 204 Unless NETBSD_INSPIRED is defined to 0, the tz library now 205 supplies functions for creating and using objects that represent 206 time zones. The new functions are tzalloc, tzfree, localtime_rz, 207 mktime_z, and (if STD_INSPIRED is also defined) posix2time_z and 208 time2posix_z. They are intended for performance: for example, 209 localtime_rz (unlike localtime_r) is trivially thread-safe without 210 locking. (Thanks to Christos Zoulas for proposing NetBSD-inspired 211 functions, and to Alan Barrett and Jonathan Lennox for helping to 212 debug the change.) 213 214 zdump now builds with the tz library unless USE_LTZ is defined to 0, 215 This lets zdump use tz features even if the system library lacks them. 216 To build zdump with the system library, use 'make CFLAGS=-DUSE_LTZ=0 217 TZDOBJS=zdump.o CHECK_TIME_T_ALTERNATIVES='. 218 219 zdump now uses localtime_rz if available, as it's significantly faster, 220 and it can help zdump better diagnose invalid time zone names. 221 Define HAVE_LOCALTIME_RZ to 0 to suppress this. HAVE_LOCALTIME_RZ 222 defaults to 1 if NETBSD_INSPIRED && USE_LTZ. When localtime_rz is 223 not available, zdump now uses localtime_r and tzset if available, 224 as this is a bit cleaner and faster than plain localtime. Compile 225 with -DHAVE_LOCALTIME_R=0 and/or -DHAVE_TZSET=0 if your system 226 lacks these two functions. 227 228 If THREAD_SAFE is defined to 1, the tz library is now thread-safe. 229 Although not needed for tz's own applications, which are single-threaded, 230 this supports POSIX better if the tz library is used in multithreaded apps. 231 232 Some crashes have been fixed when zdump or the tz library is given 233 invalid or outlandish input. 234 235 The tz library no longer mishandles leap seconds on platforms with 236 unsigned time_t in time zones that lack ordinary transitions after 1970. 237 238 The tz code now attempts to infer TM_GMTOFF and TM_ZONE if not 239 already defined, to make it easier to configure on common platforms. 240 Define NO_TM_GMTOFF and NO_TM_ZONE to suppress this. 241 242 Unless the new macro UNINIT_TRAP is defined to 1, the tz code now 243 assumes that reading uninitialized memory yields garbage values 244 but does not cause other problems such as traps. 245 246 If TM_GMTOFF is defined and UNINIT_TRAP is 0, mktime is now 247 more likely to guess right for ambiguous time stamps near 248 transitions where tm_isdst does not change. 249 250 If HAVE_STRFTIME_L is defined to 1, the tz library now defines 251 strftime_l for compatibility with recent versions of POSIX. 252 Only the C locale is supported, though. HAVE_STRFTIME_L defaults 253 to 1 on recent POSIX versions, and to 0 otherwise. 254 255 tzselect -c now uses a hybrid distance measure that works better 256 in Africa. (Thanks to Alan Barrett for noting the problem.) 257 258 The C source code now ports to NetBSD when GCC_DEBUG_FLAGS is used, 259 or when time_tz is defined. 260 261 When HAVE_UTMPX_H is set the 'date' command now builds on systems 262 whose <utmpx.h> file does not define WTMPX_FILE, and when setting 263 the date it updates the wtmpx file if _PATH_WTMPX is defined. 264 This affects GNU/Linux and similar systems. 265 266 For easier maintenance later, some C code has been simplified, 267 some lint has been removed, and the code has been tweaked so that 268 plain 'make' is more likely to work. 269 270 The C type 'bool' is now used for boolean values, instead of 'int'. 271 272 The long-obsolete LOCALE_HOME code has been removed. 273 274 The long-obsolete 'gtime' function has been removed. 275 276 Changes affecting build procedure 277 278 'zdump' no longer links in ialloc.o, as it's not needed. 279 280 'make check_time_t_alternatives' no longer assumes GNU diff. 281 282 Changes affecting distribution tarballs 283 284 The files checktab.awk and zoneinfo2tdf.pl are now distributed in 285 the tzdata tarball instead of the tzcode tarball, since they help 286 maintain the data. The NEWS and Theory files are now also 287 distributed in the tzdata tarball, as they're relevant for data. 288 (Thanks to Alan Barrett for pointing this out.) Also, the 289 leapseconds.awk file is no longer distributed in the tzcode 290 tarball, since it belongs in the tzdata tarball (where 2014f 291 inadvertently also distributed it). 292 293 Changes affecting documentation and commentary 294 295 A new file CONTRIBUTING is distributed. (Thanks to Tim Parenti for 296 suggesting a CONTRIBUTING file, and to Tony Finch and Walter Harms 297 for debugging it.) 298 299 The man pages have been updated to use function prototypes, 300 to document thread-safe variants like localtime_r, and to document 301 the NetBSD-inspired functions tzalloc, tzfree, localtime_rz, and 302 mktime_z. 303 304 The fields in Link lines have been renamed to be more descriptive 305 and more like the parameters of 'ln'. LINK-FROM has become TARGET, 306 and LINK-TO has become LINK-NAME. 307 308 tz-link.htm mentions the IETF's tzdist working group; Windows 309 Runtime etc. (thanks to Matt Johnson); and HP-UX's tztab. 310 311 Some broken URLs have been fixed in the commentary. (Thanks to 312 Lester Caine.) 313 314 Commentary about Philippines DST has been updated, and commentary 315 on pre-1970 time in India has been added. 316 317 318 Release 2014f - 2014-08-05 17:42:36 -0700 319 320 Changes affecting future time stamps 321 322 Russia will subtract an hour from most of its time zones on 2014-10-26 323 at 02:00 local time. (Thanks to Alexander Krivenyshev.) 324 There are a few exceptions: Magadan Oblast (Asia/Magadan) and Zabaykalsky 325 Krai are subtracting two hours; conversely, Chukotka Autonomous Okrug 326 (Asia/Anadyr), Kamchatka Krai (Asia/Kamchatka), Kemerovo Oblast 327 (Asia/Novokuznetsk), and the Samara Oblast and the Udmurt Republic 328 (Europe/Samara) are not changing their clocks. The changed zones are 329 Europe/Kaliningrad, Europe/Moscow, Europe/Simferopol, Europe/Volgograd, 330 Asia/Yekaterinburg, Asia/Omsk, Asia/Novosibirsk, Asia/Krasnoyarsk, 331 Asia/Irkutsk, Asia/Yakutsk, Asia/Vladivostok, Asia/Khandyga, 332 Asia/Sakhalin, and Asia/Ust-Nera; Asia/Magadan will have two hours 333 subtracted; and Asia/Novokuznetsk's time zone abbreviation is affected, 334 but not its UTC offset. Two zones are added: Asia/Chita (split 335 from Asia/Yakutsk, and also with two hours subtracted) and 336 Asia/Srednekolymsk (split from Asia/Magadan, but with only one hour 337 subtracted). (Thanks to Tim Parenti for much of the above.) 338 339 Changes affecting time zone abbreviations 340 341 Australian eastern time zone abbreviations are now AEST/AEDT not EST, 342 and similarly for the other Australian zones. That is, for eastern 343 standard and daylight saving time the abbreviations are AEST and AEDT 344 instead of the former EST for both; similarly, ACST/ACDT, ACWST/ACWDT, 345 and AWST/AWDT are now used instead of the former CST, CWST, and WST. 346 This change does not affect UTC offsets, only time zone abbreviations. 347 (Thanks to Rich Tibbett and many others.) 348 349 Asia/Novokuznetsk shifts from NOVT to KRAT (remaining on UTC+7) 350 effective 2014-10-26 at 02:00 local time. 351 352 The time zone abbreviation for Xinjiang Time (observed in rmqi) 353 has been changed from URUT to XJT. (Thanks to Luther Ma.) 354 355 Prefer MSK/MSD for Moscow time in Russia, even in other cities. 356 Similarly, prefer EET/EEST for eastern European time in Russia. 357 358 Change time zone abbreviations in (western) Samoa to use "ST" and 359 "DT" suffixes, as this is more likely to match common practice. 360 Prefix "W" to (western) Samoa time when its standard-time offset 361 disagrees with that of American Samoa. 362 363 America/Metlakatla now uses PST, not MeST, to abbreviate its time zone. 364 365 Time zone abbreviations have been updated for Japan's two time 366 zones used 1896-1937. JWST now stands for Western Standard 367 Time, and JCST for Central Standard Time (formerly this was CJT). 368 These abbreviations are now used for time in Korea, Taiwan, 369 and Sakhalin while controlled by Japan. 370 371 Changes affecting past time stamps 372 373 China's five zones have been simplified to two, since the post-1970 374 differences in the other three seem to have been imaginary. The 375 zones Asia/Harbin, Asia/Chongqing, and Asia/Kashgar have been 376 removed; backwards-compatibility links still work, albeit with 377 different behaviors for time stamps before May 1980. Asia/Urumqi's 378 1980 transition to UTC+8 has been removed, so that it is now at 379 UTC+6 and not UTC+8. (Thanks to Luther Ma and to Alois Treindl; 380 Treindl sent helpful translations of two papers by Guo Qingsheng.) 381 382 Some zones have been turned into links, when they differed from existing 383 zones only for older UTC offsets where data entries were likely invented. 384 These changes affect UTC offsets in pre-1970 time stamps only. This is 385 similar to the change in release 2013e, except this time for western 386 Africa. The affected zones are: Africa/Bamako, Africa/Banjul, 387 Africa/Conakry, Africa/Dakar, Africa/Freetown, Africa/Lome, 388 Africa/Nouakchott, Africa/Ouagadougou, Africa/Sao_Tome, and 389 Atlantic/St_Helena. This also affects the backwards-compatibility 390 link Africa/Timbuktu. (Thanks to Alan Barrett, Stephen Colebourne, 391 Tim Parenti, and David Patte for reporting problems in earlier 392 versions of this change.) 393 394 Asia/Shanghai's pre-standard-time UT offset has been changed from 395 8:05:57 to 8:05:43, the location of Xujiahui Observatory. Its 396 transition to standard time has been changed from 1928 to 1901. 397 398 Asia/Taipei switched to JWST on 1896-01-01, then to JST on 1937-10-01, 399 then to CST on 1945-09-21 at 01:00, and did not observe DST in 1945. 400 In 1946 it observed DST from 05-15 through 09-30; in 1947 401 from 04-15 through 10-31; and in 1979 from 07-01 through 09-30. 402 (Thanks to Yu-Cheng Chuang.) 403 404 Asia/Riyadh's transition to standard time is now 1947-03-14, not 1950. 405 406 Europe/Helsinki's 1942 fall-back transition was 10-04 at 01:00, not 407 10-03 at 00:00. (Thanks to Konstantin Hyppnen.) 408 409 Pacific/Pago_Pago has been changed from UTC-11:30 to UTC-11 for the period 410 from 1911 to 1950. 411 412 Pacific/Chatham has been changed to New Zealand standard time plus 413 45 minutes for the period before 1957, reflecting a 1956 remark in 414 the New Zealand parliament. 415 416 Europe/Budapest has several pre-1946 corrections: in 1918 the transition 417 out of DST was on 09-16, not 09-29; in 1919 it was on 11-24, not 09-15; in 418 1945 it was on 11-01, not 11-03; in 1941 the transition to DST was 04-08 419 not 04-06 at 02:00; and there was no DST in 1920. 420 421 Africa/Accra is now assumed to have observed DST from 1920 through 1935. 422 423 Time in Russia before 1927 or so has been corrected by a few seconds in 424 the following zones: Europe/Moscow, Asia/Irkutsk, Asia/Tbilisi, 425 Asia/Tashkent, Asia/Vladivostok, Asia/Yekaterinburg, Europe/Helsinki, and 426 Europe/Riga. Also, Moscow's location has been changed to its Kilometer 0 427 point. (Thanks to Vladimir Karpinsky for the Moscow changes.) 428 429 Changes affecting data format 430 431 A new file 'zone1970.tab' supersedes 'zone.tab' in the installed data. 432 The new file's extended format allows multiple country codes per zone. 433 The older file is still installed but is deprecated; its format is 434 not changing and it will still be distributed for a while, but new 435 applications should use the new file. 436 437 The new file format simplifies maintenance of obscure locations. 438 To test this, it adds coverage for the Crozet Islands and the 439 Scattered Islands. (Thanks to Tobias Conradi and Antoine Leca.) 440 441 The file 'iso3166.tab' is planned to switch from ASCII to UTF-8. 442 It is still ASCII now, but commentary about the switch has been added. 443 The new file 'zone1970.tab' already uses UTF-8. 444 445 Changes affecting code 446 447 'localtime', 'mktime', etc. now use much less stack space if ALL_STATE 448 is defined. (Thanks to Elliott Hughes for reporting the problem.) 449 450 'zic' no longer mishandles input when ignoring case in locales that 451 are not compatible with English, e.g., unibyte Turkish locales when 452 compiled with HAVE_GETTEXT. 453 454 Error diagnostics of 'zic' and 'yearistype' have been reworded so that 455 they no longer use ASCII '-' as if it were a dash. 456 457 'zic' now rejects output file names that contain '.' or '..' components. 458 (Thanks to Tim Parenti for reporting the problem.) 459 460 'zic -v' now warns about output file names that do not follow 461 POSIX rules, or that contain a digit or '.'. (Thanks to Arthur 462 David Olson for starting the ball rolling on this.) 463 464 Some lint has been removed when using GCC_DEBUG_FLAGS with GCC 4.9.0. 465 466 Changes affecting build procedure 467 468 'zic' no longer links in localtime.o and asctime.o, as they're not needed. 469 (Thanks to John Cochran.) 470 471 Changes affecting documentation and commentary 472 473 The 'Theory' file documents legacy names, the longstanding 474 exceptions to the POSIX-inspired file name rules. 475 476 The 'zic' documentation clarifies the role of time types when 477 interpreting dates. (Thanks to Arthur David Olson.) 478 479 Documentation and commentary now prefer UTF-8 to US-ASCII, 480 allowing the use of proper accents in foreign words and names. 481 Code and data have not changed because of this. (Thanks to 482 Garrett Wollman, Ian Abbott, and Guy Harris for helping to debug 483 this.) 484 485 Non-HTML documentation and commentary now use plain-text URLs instead of 486 HTML insertions, and are more consistent about bracketing URLs when they 487 are not already surrounded by white space. (Thanks to suggestions by 488 Steffen Nurpmeso.) 489 490 There is new commentary about Xujiahui Observatory, the five time-zone 491 project in China from 1918 to 1949, timekeeping in Japanese-occupied 492 Shanghai, and Tibet Time in the 1950s. The sharp-eyed can spot the 493 warlord Jin Shuren in the data. 494 495 Commentary about the coverage of each Russian zone has been standardized. 496 (Thanks to Tim Parenti). 497 498 There is new commentary about contemporary timekeeping in Ethiopia. 499 500 Obsolete comments about a 2007 proposal for DST in Kuwait has been removed. 501 502 There is new commentary about time in Poland in 1919. 503 504 Proper credit has been given to DST inventor George Vernon Hudson. 505 506 Commentary about time in Metlakatla, AK and Resolute, NU has been 507 improved, with a new source for the former. 508 509 In zone.tab, Pacific/Easter no longer mentions Salas y Gmez, as it 510 is uninhabited. 511 512 Commentary about permanent Antarctic bases has been updated. 513 514 Several typos have been corrected. (Thanks to Tim Parenti for 515 contributing some of these fixes.) 516 517 tz-link.htm now mentions the JavaScript libraries Moment Timezone, 518 TimezoneJS.Date, Walltime-js, and Timezone. (Thanks to a heads-up 519 from Matt Johnson.) Also, it mentions the Go 'latlong' package. 520 (Thanks to a heads-up from Dirkjan Ochtman.) 521 522 The files usno1988, usno1989, usno1989a, usno1995, usno1997, and usno1998 523 have been removed. These obsolescent US Naval Observatory entries were no 524 longer helpful for maintenance. (Thanks to Tim Parenti for the suggestion.) 525 526 527 Release 2014e - 2014-06-12 21:53:52 -0700 528 529 Changes affecting near-future time stamps 530 531 Egypt's 2014 Ramadan-based transitions are June 26 and July 31 at 24:00. 532 (Thanks to Imed Chihi.) Guess that from 2015 on Egypt will temporarily 533 switch to standard time at 24:00 the last Thursday before Ramadan, and 534 back to DST at 00:00 the first Friday after Ramadan. 535 536 Similarly, Morocco's are June 28 at 03:00 and August 2 at 02:00. (Thanks 537 to Milamber Space Network.) Guess that from 2015 on Morocco will 538 temporarily switch to standard time at 03:00 the last Saturday before 539 Ramadan, and back to DST at 02:00 the first Saturday after Ramadan. 540 541 Changes affecting past time stamps 542 543 The abbreviation "MSM" (Moscow Midsummer Time) is now used instead of 544 "MSD" for Moscow's double daylight time in summer 1921. Also, a typo 545 "VLASST" has been repaired to be "VLAST" for Vladivostok summer time 546 in 1991. (Thanks to Hank W. for reporting the problems.) 547 548 Changes affecting commentary 549 550 tz-link.htm now cites RFC 7265 for jCal, mentions PTP and the 551 draft CalDAV extension, updates URLs for TSP, TZInfo, IATA, and 552 removes stale pointers to World Time Explorer and WORLDTIME. 553 554 555 Release 2014d - 2014-05-27 21:34:40 -0700 556 557 Changes affecting code 558 559 zic no longer generates files containing time stamps before the Big Bang. 560 This works around GNOME bug 730332 561 <https://bugzilla.gnome.org/show_bug.cgi?id=730332>. 562 (Thanks to Leonardo Chiquitto for reporting the bug, and to 563 Arthur David Olson and James Cloos for suggesting improvements to the fix.) 564 565 Changes affecting documentation 566 567 tz-link.htm now mentions GNOME. 568 569 570 Release 2014c - 2014-05-13 07:44:13 -0700 571 572 Changes affecting near-future time stamps 573 574 Egypt observes DST starting 2014-05-15 at 24:00. 575 (Thanks to Ahmad El-Dardiry and Gunther Vermier.) 576 Details have not been announced, except that DST will not be observed 577 during Ramadan. Guess that DST will stop during the same Ramadan dates as 578 Morocco, and that Egypt's future spring and fall transitions will be the 579 same as 2010 when it last observed DST, namely April's last Friday at 580 00:00 to September's last Thursday at 23:00 standard time. Also, guess 581 that Ramadan transitions will be at 00:00 standard time. 582 583 Changes affecting code 584 585 zic now generates transitions for minimum time values, eliminating guesswork 586 when handling low-valued time stamps. (Thanks to Arthur David Olson.) 587 588 Port to Cygwin sans glibc. (Thanks to Arthur David Olson.) 589 590 Changes affecting commentary and documentation 591 592 Remove now-confusing comment about Jordan. (Thanks to Oleksii Nochovnyi.) 593 594 595 Release 2014b - 2014-03-24 21:28:50 -0700 596 597 Changes affecting near-future time stamps 598 599 Crimea switches to Moscow time on 2014-03-30 at 02:00 local time. 600 (Thanks to Alexander Krivenyshev.) Move its zone.tab entry from UA to RU. 601 602 New entry for Troll station, Antarctica. (Thanks to Paul-Inge Flakstad and 603 Bengt-Inge Larsson.) This is currently an approximation; a better version 604 will require the zic and localtime fixes mentioned below, and the plan is 605 to wait for a while until at least the zic fixes propagate. 606 607 Changes affecting code 608 609 'zic' and 'localtime' no longer reject locations needing four transitions 610 per year for the foreseeable future. (Thanks to Andrew Main (Zefram).) 611 Also, 'zic' avoids some unlikely failures due to integer overflow. 612 613 Changes affecting build procedure 614 615 'make check' now detects Rule lines defined but never used. 616 The NZAQ rules, an instance of this problem, have been removed. 617 618 Changes affecting commentary and documentation 619 620 Fix Tuesday/Thursday typo in description of time in Israel. 621 (Thanks to Bert Katz via Pavel Kharitonov and Mike Frysinger.) 622 623 Microsoft Windows 8.1 doesn't support tz database names. (Thanks 624 to Donald MacQueen.) Instead, the Microsoft Windows Store app 625 library supports them. 626 627 Add comments about Johnston Island time in the 1960s. 628 (Thanks to Lyle McElhaney.) 629 630 Morocco's 2014 DST start will be as predicted. 631 (Thanks to Sebastien Willemijns.) 632 633 634 Release 2014a - 2014-03-07 23:30:29 -0800 635 636 Changes affecting near-future time stamps 637 638 Turkey begins DST on 2014-03-31, not 03-30. (Thanks to Faruk Pasin for 639 the heads-up, and to Tim Parenti for simplifying the update.) 640 641 Changes affecting past time stamps 642 643 Fiji ended DST on 2014-01-19 at 02:00, not the previously-scheduled 03:00. 644 (Thanks to Steffen Thorsen.) 645 646 Ukraine switched from Moscow to Eastern European time on 1990-07-01 647 (not 1992-01-01), and observed DST during the entire next winter. 648 (Thanks to Vladimir in Moscow via Alois Treindl.) 649 650 In 1988 Israel observed DST from 04-10 to 09-04, not 04-09 to 09-03. 651 (Thanks to Avigdor Finkelstein.) 652 653 Changes affecting code 654 655 A uninitialized-storage bug in 'localtime' has been fixed. 656 (Thanks to Logan Chien.) 657 658 Changes affecting the build procedure 659 660 The settings for 'make check_web' now default to Ubuntu 13.10. 661 662 Changes affecting commentary and documentation 663 664 The boundary of the US Pacific time zone is given more accurately. 665 (Thanks to Alan Mintz.) 666 667 Chile's 2014 DST will be as predicted. (Thanks to Jos Miguel Garrido.) 668 669 Paraguay's 2014 DST will be as predicted. (Thanks to Carlos Ral Perasso.) 670 671 Better descriptions of countries with same time zone history as 672 Trinidad and Tobago since 1970. (Thanks to Alan Barrett for suggestion.) 673 674 Several changes affect tz-link.htm, the main web page. 675 676 Mention Time.is (thanks to Even Scharning) and WX-now (thanks to 677 David Braverman). 678 679 Mention xCal (Internet RFC 6321) and jCal. 680 681 Microsoft has some support for tz database names. 682 683 CLDR data formats include both XML and JSON. 684 685 Mention Maggiolo's map of solar vs standard time. 686 (Thanks to Arthur David Olson.) 687 688 Mention TZ4Net. (Thanks to Matt Johnson.) 689 690 Mention the timezone-olson Haskell package. 691 692 Mention zeitverschiebung.net. (Thanks to Martin Jger.) 693 694 Remove moribund links to daylight-savings-time.info and to 695 Simple Timer + Clocks. 696 697 Update two links. (Thanks to Oscar van Vlijmen.) 698 699 Fix some formatting glitches, e.g., remove random newlines from 700 abbr elements' title attributes. 701 702 703 Release 2013i - 2013-12-17 07:25:23 -0800 704 705 Changes affecting near-future time stamps: 706 707 Jordan switches back to standard time at 00:00 on December 20, 2013. 708 The 2006-2011 transition schedule is planned to resume in 2014. 709 (Thanks to Steffen Thorsen.) 710 711 Changes affecting past time stamps: 712 713 In 2004, Cuba began DST on March 28, not April 4. 714 (Thanks to Steffen Thorsen.) 715 716 Changes affecting code 717 718 The compile-time flag NOSOLAR has been removed, as nowadays the 719 benefit of slightly shrinking runtime table size is outweighed by the 720 cost of disallowing potential future updates that exceed old limits. 721 722 Changes affecting documentation and commentary 723 724 The files solar87, solar88, and solar89 are no longer distributed. 725 They were a negative experiment - that is, a demonstration that 726 tz data can represent solar time only with some difficulty and error. 727 Their presence in the distribution caused confusion, as Riyadh 728 civil time was generally not solar time in those years. 729 730 tz-link.htm now mentions Noda Time. (Thanks to Matt Johnson.) 731 732 733 Release 2013h - 2013-10-25 15:32:32 -0700 734 735 Changes affecting current and future time stamps: 736 737 Libya has switched its time zone back to UTC+2 without DST, 738 instead of UTC+1 with DST. (Thanks to Even Scharning.) 739 740 Western Sahara (Africa/El_Aaiun) uses Morocco's DST rules. 741 (Thanks to Gwillim Law.) 742 743 Changes affecting future time stamps: 744 745 Acre and (we guess) western Amazonas will switch from UTC-4 to UTC-5 746 on 2013-11-10. This affects America/Rio_Branco and America/Eirunepe. 747 (Thanks to Steffen Thorsen.) 748 749 Add entries for DST transitions in Morocco in the year 2038. 750 This avoids some year-2038 glitches introduced in 2013g. 751 (Thanks to Yoshito Umaoka for reporting the problem.) 752 753 Changes affecting API 754 755 The 'tzselect' command no longer requires the 'select' command, 756 and should now work with /bin/sh on more platforms. It also works 757 around a bug in BusyBox awk before version 1.21.0. (Thanks to 758 Patrick 'P. J.' McDermott and Alan Barrett.) 759 760 Changes affecting code 761 762 Fix localtime overflow bugs with 32-bit unsigned time_t. 763 764 zdump no longer assumes sscanf returns maximal values on overflow. 765 766 Changes affecting the build procedure 767 768 The builder can specify which programs to use, if any, instead of 769 'ar' and 'ranlib', and libtz.a is now built locally before being 770 installed. (Thanks to Michael Forney.) 771 772 A dependency typo in the 'zdump' rule has been fixed. 773 (Thanks to Andrew Paprocki.) 774 775 The Makefile has been simplified by assuming that 'mkdir -p' and 'cp -f' 776 work as specified by POSIX.2-1992 or later; this is portable nowadays. 777 778 'make clean' no longer removes 'leapseconds', since it's 779 host-independent and is part of the distribution. 780 781 The unused makefile macros TZCSRCS, TZDSRCS, DATESRCS have been removed. 782 783 Changes affecting documentation and commentary 784 785 tz-link.htm now mentions TC TIMEZONE's draft time zone service protocol 786 (thanks to Mike Douglass) and TimezoneJS.Date (thanks to Jim Fehrle). 787 788 Update URLs in tz-link page. Add URLs for Microsoft Windows, since 789 8.1 introduces tz support. Remove URLs for Tru64 and UnixWare (no 790 longer maintained) and for old advisories. SOFA now does C. 791 792 Release 2013g - 2013-09-30 21:08:26 -0700 793 794 Changes affecting current and near-future time stamps 795 796 Morocco now observes DST from the last Sunday in March to the last 797 Sunday in October, not April to September respectively. (Thanks 798 to Steffen Thorsen.) 799 800 Changes affecting 'zic' 801 802 'zic' now runs on platforms that lack both hard links and symlinks. 803 (Thanks to Theo Veenker for reporting the problem, for MinGW.) 804 Also, fix some bugs on platforms that lack hard links but have symlinks. 805 806 'zic -v' again warns that Asia/Tehran has no POSIX environment variable 807 to predict the far future, fixing a bug introduced in 2013e. 808 809 Changes affecting the build procedure 810 811 The 'leapseconds' file is again put into the tzdata tarball. 812 Also, 'leapseconds.awk', so tzdata is self-contained. (Thanks to 813 Matt Burgess and Ian Abbott.) The timestamps of these and other 814 dependent files in tarballs are adjusted more consistently. 815 816 Changes affecting documentation and commentary 817 818 The README file is now part of the data tarball as well as the code. 819 It now states that files are public domain unless otherwise specified. 820 (Thanks to Andrew Main (Zefram) for asking for clarifications.) 821 Its details about the 1989 release moved to a place of honor near 822 the end of NEWS. 823 824 825 Release 2013f - 2013-09-24 23:37:36 -0700 826 827 Changes affecting near-future time stamps 828 829 Tocantins will very likely not observe DST starting this spring. 830 (Thanks to Steffen Thorsen.) 831 832 Jordan will likely stay at UTC+3 indefinitely, and will not fall 833 back this fall. 834 835 Palestine will fall back at 00:00, not 01:00. (Thanks to Steffen Thorsen.) 836 837 Changes affecting API 838 839 The types of the global variables 'timezone' and 'altzone' (if present) 840 have been changed back to 'long'. This is required for 'timezone' 841 by POSIX, and for 'altzone' by common practice, e.g., Solaris 11. 842 These variables were originally 'long' in the tz code, but were 843 mistakenly changed to 'time_t' in 1987; nobody reported the 844 incompatibility until now. The difference matters on x32, where 845 'long' is 32 bits and 'time_t' is 64. (Thanks to Elliott Hughes.) 846 847 Changes affecting the build procedure 848 849 Avoid long strings in leapseconds.awk to work around a mawk bug. 850 (Thanks to Cyril Baurand.) 851 852 Changes affecting documentation and commentary 853 854 New file 'NEWS' that contains release notes like this one. 855 856 Paraguay's law does not specify DST transition time; 00:00 is customary. 857 (Thanks to Waldemar Villamayor-Venialbo.) 858 859 Minor capitalization fixes. 860 861 Changes affecting version-control only 862 863 The experimental GitHub repository now contains annotated and 864 signed tags for recent releases, e.g., '2013e' for Release 2013e. 865 Releases are tagged starting with 2012e; earlier releases were 866 done differently, and tags would either not have a simple name or 867 not exactly match what was released. 868 869 'make set-timestamps' is now simpler and a bit more portable. 870 871 872 Release 2013e - 2013-09-19 23:50:04 -0700 873 874 Changes affecting near-future time stamps 875 876 This year Fiji will start DST on October 27, not October 20. 877 (Thanks to David Wheeler for the heads-up.) For now, guess that 878 Fiji will continue to spring forward the Sunday before the fourth 879 Monday in October. 880 881 Changes affecting current and future time zone abbreviations 882 883 Use WIB/WITA/WIT rather than WIT/CIT/EIT for alphabetic Indonesian 884 time zone abbreviations since 1932. (Thanks to George Ziegler, 885 Priyadi Iman Nurcahyo, Zakaria, Jason Grimes, Martin Pitt, and 886 Benny Lin.) This affects Asia/Dili, Asia/Jakarta, Asia/Jayapura, 887 Asia/Makassar, and Asia/Pontianak. 888 889 Use ART (UTC-3, standard time), rather than WARST (also UTC-3, but 890 daylight saving time) for San Luis, Argentina since 2009. 891 892 Changes affecting Godthb time stamps after 2037 if version mismatch 893 894 Allow POSIX-like TZ strings where the transition time's hour can 895 range from -167 through 167, instead of the POSIX-required 0 896 through 24. E.g., TZ='FJT-12FJST,M10.3.1/146,M1.3.4/75' for the 897 new Fiji rules. This is a more-compact way to represent 898 far-future time stamps for America/Godthab, America/Santiago, 899 Antarctica/Palmer, Asia/Gaza, Asia/Hebron, Asia/Jerusalem, 900 Pacific/Easter, and Pacific/Fiji. Other zones are unaffected by 901 this change. (Derived from a suggestion by Arthur David Olson.) 902 903 Allow POSIX-like TZ strings where daylight saving time is in 904 effect all year. E.g., TZ='WART4WARST,J1/0,J365/25' for Western 905 Argentina Summer Time all year. This supports a more-compact way 906 to represent the 2013d data for America/Argentina/San_Luis. 907 Because of the change for San Luis noted above this change does not 908 affect the current data. (Thanks to Andrew Main (Zefram) for 909 suggestions that improved this change.) 910 911 Where these two TZ changes take effect, there is a minor extension 912 to the tz file format in that it allows new values for the 913 embedded TZ-format string, and the tz file format version number 914 has therefore been increased from 2 to 3 as a precaution. 915 Version-2-based client code should continue to work as before for 916 all time stamps before 2038. Existing version-2-based client code 917 (tzcode, GNU/Linux, Solaris) has been tested on version-3-format 918 files, and typically works in practice even for time stamps after 919 2037; the only known exception is America/Godthab. 920 921 Changes affecting time stamps before 1970 922 923 Pacific/Johnston is now a link to Pacific/Honolulu. This corrects 924 some errors before 1947. 925 926 Some zones have been turned into links, when they differ from existing 927 zones only in older data entries that were likely invented or that 928 differ only in LMT or transitions from LMT. These changes affect 929 only time stamps before 1943. The affected zones are: 930 Africa/Juba, America/Anguilla, America/Aruba, America/Dominica, 931 America/Grenada, America/Guadeloupe, America/Marigot, 932 America/Montserrat, America/St_Barthelemy, America/St_Kitts, 933 America/St_Lucia, America/St_Thomas, America/St_Vincent, 934 America/Tortola, and Europe/Vaduz. (Thanks to Alois Treindl for 935 confirming that the old Europe/Vaduz zone was wrong and the new 936 link is better for WWII-era times.) 937 938 Change Kingston Mean Time from -5:07:12 to -5:07:11. This affects 939 America/Cayman, America/Jamaica and America/Grand_Turk time stamps 940 from 1890 to 1912. 941 942 Change the UT offset of Bern Mean Time from 0:29:44 to 0:29:46. 943 This affects Europe/Zurich time stamps from 1853 to 1894. (Thanks 944 to Alois Treindl). 945 946 Change the date of the circa-1850 Zurich transition from 1849-09-12 947 to 1853-07-16, overriding Shanks with data from Messerli about 948 postal and telegraph time in Switzerland. 949 950 Changes affecting time zone abbreviations before 1970 951 952 For Asia/Jakarta, use BMT (not JMT) for mean time from 1923 to 1932, 953 as Jakarta was called Batavia back then. 954 955 Changes affecting API 956 957 The 'zic' command now outputs a dummy transition when far-future 958 data can't be summarized using a TZ string, and uses a 402-year 959 window rather than a 400-year window. For the current data, this 960 affects only the Asia/Tehran file. It does not affect any of the 961 time stamps that this file represents, so zdump outputs the same 962 information as before. (Thanks to Andrew Main (Zefram).) 963 964 The 'date' command has a new '-r' option, which lets you specify 965 the integer time to display, a la FreeBSD. 966 967 The 'tzselect' command has two new options '-c' and '-n', which lets you 968 select a zone based on latitude and longitude. 969 970 The 'zic' command's '-v' option now warns about constructs that 971 require the new version-3 binary file format. (Thanks to Arthur 972 David Olson for the suggestion.) 973 974 Support for floating-point time_t has been removed. 975 It was always dicey, and POSIX no longer requires it. 976 (Thanks to Eric Blake for suggesting to the POSIX committee to 977 remove it, and thanks to Alan Barrett, Clive D.W. Feather, Andy 978 Heninger, Arthur David Olson, and Alois Treindl, for reporting 979 bugs and elucidating some of the corners of the old floating-point 980 implementation.) 981 982 The signatures of 'offtime', 'timeoff', and 'gtime' have been 983 changed back to the old practice of using 'long' to represent UT 984 offsets. This had been inadvertently and mistakenly changed to 985 'int_fast32_t'. (Thanks to Christos Zoulas.) 986 987 The code avoids undefined behavior on integer overflow in some 988 more places, including gmtime, localtime, mktime and zdump. 989 990 Changes affecting the zdump utility 991 992 zdump now outputs "UT" when referring to Universal Time, not "UTC". 993 "UTC" does not make sense for time stamps that predate the introduction 994 of UTC, whereas "UT", a more-generic term, does. (Thanks to Steve Allen 995 for clarifying UT vs UTC.) 996 997 Data changes affecting behavior of tzselect and similar programs 998 999 Country code BQ is now called the more-common name "Caribbean Netherlands" 1000 rather than the more-official "Bonaire, St Eustatius & Saba". 1001 1002 Remove from zone.tab the names America/Montreal, America/Shiprock, 1003 and Antarctica/South_Pole, as they are equivalent to existing 1004 same-country-code zones for post-1970 time stamps. The data entries for 1005 these names are unchanged, so the names continue to work as before. 1006 1007 Changes affecting code internals 1008 1009 zic -c now runs way faster on 64-bit hosts when given large numbers. 1010 1011 zic now uses vfprintf to avoid allocating and freeing some memory. 1012 1013 tzselect now computes the list of continents from the data, 1014 rather than have it hard-coded. 1015 1016 Minor changes pacify GCC 4.7.3 and GCC 4.8.1. 1017 1018 Changes affecting the build procedure 1019 1020 The 'leapseconds' file is now generated automatically from a 1021 new file 'leap-seconds.list', which is a copy of 1022 <ftp://time.nist.gov/pub/leap-seconds.list>. 1023 A new source file 'leapseconds.awk' implements this. 1024 The goal is simplification of the future maintenance of 'leapseconds'. 1025 1026 When building the 'posix' or 'right' subdirectories, if the 1027 subdirectory would be a copy of the default subdirectory, it is 1028 now made a symbolic link if that is supported. This saves about 1029 2 MB of file system space. 1030 1031 The links America/Shiprock and Antarctica/South_Pole have been 1032 moved to the 'backward' file. This affects only nondefault builds 1033 that omit 'backward'. 1034 1035 Changes affecting version-control only 1036 1037 .gitignore now ignores 'date'. 1038 1039 Changes affecting documentation and commentary 1040 1041 Changes to the 'tzfile' man page 1042 1043 It now mentions that the binary file format may be extended in 1044 future versions by appending data. 1045 1046 It now refers to the 'zdump' and 'zic' man pages. 1047 1048 Changes to the 'zic' man page 1049 1050 It lists conditions that elicit a warning with '-v'. 1051 1052 It says that the behavior is unspecified when duplicate names 1053 are given, or if the source of one link is the target of another. 1054 1055 Its examples are updated to match the latest data. 1056 1057 The definition of white space has been clarified slightly. 1058 (Thanks to Michael Deckers.) 1059 1060 Changes to the 'Theory' file 1061 1062 There is a new section about the accuracy of the tz database, 1063 describing the many ways that errors can creep in, and 1064 explaining why so many of the pre-1970 time stamps are wrong or 1065 misleading (thanks to Steve Allen, Lester Caine, and Garrett 1066 Wollman for discussions that contributed to this). 1067 1068 The 'Theory' file describes LMT better (this follows a 1069 suggestion by Guy Harris). 1070 1071 It refers to the 2013 edition of POSIX rather than the 2004 edition. 1072 1073 It's mentioned that excluding 'backward' should not affect the 1074 other data, and it suggests at least one zone.tab name per 1075 inhabited country (thanks to Stephen Colebourne). 1076 1077 Some longstanding restrictions on names are documented, e.g., 1078 'America/New_York' precludes 'America/New_York/Bronx'. 1079 1080 It gives more reasons for the 1970 cutoff. 1081 1082 It now mentions which time_t variants are supported, such as 1083 signed integer time_t. (Thanks to Paul Goyette for reporting 1084 typos in an experimental version of this change.) 1085 1086 (Thanks to Philip Newton for correcting typos in these changes.) 1087 1088 Documentation and commentary is more careful to distinguish UT in 1089 general from UTC in particular. (Thanks to Steve Allen.) 1090 1091 Add a better source for the Zurich 1894 transition. 1092 (Thanks to Pierre-Yves Berger.) 1093 1094 Update shapefile citations in tz-link.htm. (Thanks to Guy Harris.) 1095 1096 1097 Release 2013d - 2013-07-05 07:38:01 -0700 1098 1099 Changes affecting future time stamps: 1100 1101 Morocco's midsummer transitions this year are July 7 and August 10, 1102 not July 9 and August 8. (Thanks to Andrew Paprocki.) 1103 1104 Israel now falls back on the last Sunday of October. 1105 (Thanks to Ephraim Silverberg.) 1106 1107 Changes affecting past time stamps: 1108 1109 Specify Jerusalem's location more precisely; this changes the pre-1880 1110 times by 2 s. 1111 1112 Changing affecting metadata only: 1113 1114 Fix typos in the entries for country codes BQ and SX. 1115 1116 Changes affecting code: 1117 1118 Rework the code to fix a bug with handling Australia/Macquarie on 1119 32-bit hosts (thanks to Arthur David Olson). 1120 1121 Port to platforms like NetBSD, where time_t can be wider than long. 1122 1123 Add support for testing time_t types other than the system's. 1124 Run 'make check_time_t_alternatives' to try this out. 1125 Currently, the tests fail for unsigned time_t; 1126 this should get fixed at some point. 1127 1128 Changes affecting documentation and commentary: 1129 1130 Deemphasize the significance of national borders. 1131 1132 Update the zdump man page. 1133 1134 Remove obsolete NOID comment (thanks to Denis Excoffier). 1135 1136 Update several URLs and comments in the web pages. 1137 1138 Spelling fixes (thanks to Kevin Lyda and Jonathan Leffler). 1139 1140 Update URL for CLDR Zone->Tzid table (thanks to Yoshito Umaoka). 1141 1142 1143 Release 2013c - 2013-04-19 16:17:40 -0700 1144 1145 Changes affecting current and future time stamps: 1146 1147 Palestine observed DST starting March 29, 2013. (Thanks to 1148 Steffen Thorsen.) From 2013 on, Gaza and Hebron both observe DST, 1149 with the predicted rules being the last Thursday in March at 24:00 1150 to the first Friday on or after September 21 at 01:00. 1151 1152 Assume that the recent change to Paraguay's DST rules is permanent, 1153 by moving the end of DST to the 4th Sunday in March every year. 1154 (Thanks to Carlos Ral Perasso.) 1155 1156 Changes affecting past time stamps: 1157 1158 Fix some historical data for Palestine to agree with that of 1159 timeanddate.com, as follows: 1160 1161 The spring 2008 change in Gaza and Hebron was on 00:00 Mar 28, not 1162 00:00 Apr 1. 1163 1164 The fall 2009 change in Gaza and Hebron on Sep 4 was at 01:00, not 1165 02:00. 1166 1167 The spring 2010 change in Hebron was 00:00 Mar 26, not 00:01 Mar 27. 1168 1169 The spring 2011 change in Gaza was 00:01 Apr 1, not 12:01 Apr 2. 1170 1171 The spring 2011 change in Hebron on Apr 1 was at 00:01, not 12:01. 1172 1173 The fall 2011 change in Hebron on Sep 30 was at 00:00, not 03:00. 1174 1175 Fix times of habitation for Macquarie to agree with the Tasmania 1176 Parks & Wildlife Service history, which indicates that permanent 1177 habitation was 1899-1919 and 1948 on. 1178 1179 Changing affecting metadata only: 1180 1181 Macquarie Island is politically part of Australia, not Antarctica. 1182 (Thanks to Tobias Conradi.) 1183 1184 Sort Macquarie more-consistently with other parts of Australia. 1185 (Thanks to Tim Parenti.) 1186 1187 1188 Release 2013b - 2013-03-10 22:33:40 -0700 1189 1190 Changes affecting current and future time stamps: 1191 1192 Haiti uses US daylight-saving rules this year, and presumably future years. 1193 This changes time stamps starting today. (Thanks to Steffen Thorsen.) 1194 1195 Paraguay will end DST on March 24 this year. 1196 (Thanks to Steffen Thorsen.) For now, assume it's just this year. 1197 1198 Morocco does not observe DST during Ramadan; 1199 try to predict Ramadan in Morocco as best we can. 1200 (Thanks to Erik Homoet for the heads-up.) 1201 1202 Changes affecting commentary: 1203 1204 Update URLs in tz-link page. Add URLs for webOS, BB10, iOS. 1205 Update URL for Solaris. Mention Internet RFC 6557. 1206 Update Internet RFCs 2445->5545, 2822->5322. 1207 Switch from FTP to HTTP for Internet RFCs. 1208 1209 1210 Release 2013a - 2013-02-27 09:20:35 -0800 1211 1212 Change affecting binary data format: 1213 1214 The zone offset at the end of version-2-format zone files is now 1215 allowed to be 24:00, as per POSIX.1-2008. (Thanks to Arthur David Olson.) 1216 1217 Changes affecting current and future time stamps: 1218 1219 Chile's 2013 rules, and we guess rules for 2014 and later, will be 1220 the same as 2012, namely Apr Sun>=23 03:00 UTC to Sep Sun>=2 04:00 UTC. 1221 (Thanks to Steffen Thorsen and Robert Elz.) 1222 1223 New Zones Asia/Khandyga, Asia/Ust-Nera, Europe/Busingen. 1224 (Thanks to Tobias Conradi and Arthur David Olson.) 1225 1226 Many changes affect historical time stamps before 1940. 1227 These were deduced from: Milne J. Civil time. Geogr J. 1899 1228 Feb;13(2):173-94 <http://www.jstor.org/stable/1774359>. 1229 1230 Changes affecting the code: 1231 1232 Fix zic bug that mishandled Egypt's 2010 changes (this also affected 1233 the data). (Thanks to Arthur David Olson.) 1234 1235 Fix localtime bug when time_t is unsigned and data files were generated 1236 by a signed time_t system. (Thanks to Doug Bailey for reporting and 1237 to Arthur David Olson for fixing.) 1238 1239 Allow the email address for bug reports to be set by the packager. 1240 The default is tz (a] iana.org, as before. (Thanks to Joseph S. Myers.) 1241 1242 Update HTML checking to be compatible with Ubuntu 12.10. 1243 1244 Check that files are a safe subset of ASCII. At some point we may 1245 relax this requirement to a safe subset of UTF-8. Without the 1246 check, some non-UTF-8 encodings were leaking into the distribution. 1247 1248 Commentary changes: 1249 1250 Restore a comment about copyright notices that was inadvertently deleted. 1251 (Thanks to Arthur David Olson.) 1252 1253 Improve the commentary about which districts observe what times 1254 in Russia. (Thanks to Oscar van Vlijmen and Arthur David Olson). 1255 1256 Add web page links to tz.js. 1257 1258 Add "Run by the Monkeys" to tz-art. (Thanks to Arthur David Olson.) 1259 1260 1261 Release 2012j - 2012-11-12 18:34:49 -0800 1262 1263 Libya moved to CET this weekend, but with DST planned next year. 1264 (Thanks to Even Scharning, Steffen Thorsen, and Tim Parenti.) 1265 1266 Signatures now have the extension .asc, not .sign, as that's more 1267 standard. (Thanks to Phil Pennock.) 1268 1269 The output of 'zdump --version', and of 'zic --version', now 1270 uses a format that is more typical for --version. 1271 (Thanks to Joseph S. Myers.) 1272 1273 The output of 'tzselect --help', 'zdump --help', and 'zic --help' 1274 now uses tz (a] iana.org rather than the old elsie address. 1275 1276 zic -v now complains about abbreviations that are less than 3 1277 or more than 6 characters, as per Posix. Formerly, it checked 1278 for abbreviations that were more than 3. 1279 1280 'make public' no longer puts its temporary directory under /tmp, 1281 and uses the just-built zic rather than the system zic. 1282 1283 Various fixes to documentation and commentary. 1284 1285 1286 Release 2012i - 2012-11-03 12:57:09 -0700 1287 1288 Cuba switches from DST tomorrow at 01:00. (Thanks to Steffen Thorsen.) 1289 1290 Linker flags can now be specified via LDFLAGS. 1291 AWK now defaults to 'awk', not 'nawk'. 1292 The shell in tzselect now defaults to /bin/bash, but this can 1293 be overridden by specifying KSHELL. 1294 The main web page now mentions the unofficial GitHub repository. 1295 (Thanks to Mike Frysinger.) 1296 1297 Tarball signatures can now be built by running 'make signatures'. 1298 There are also new makefile rules 'tarballs', 'check_public', and 1299 separate makefile rules for each tarball and signature file. 1300 A few makefile rules are now more portable to strict POSIX. 1301 1302 The main web page now lists the canonical IANA URL. 1303 1304 1305 Release 2012h - 2012-10-26 22:49:10 -0700 1306 1307 Bahia no longer has DST. (Thanks to Kelley Cook.) 1308 1309 Tocantins has DST. (Thanks to Rodrigo Severo.) 1310 1311 Israel has new DST rules next year. (Thanks to Ephraim Silverberg.) 1312 1313 Jordan stays on DST this winter. (Thanks to Steffen Thorsen.) 1314 1315 Web page updates. 1316 1317 More C modernization, except that at Arthur David Olson's suggestion 1318 the instances of 'register' were kept. 1319 1320 1321 Release 2012g - 2012-10-17 20:59:45 -0700 1322 1323 Samoa fall 2012 and later. (Thanks to Nicholas Pereira and Robert Elz.) 1324 1325 Palestine fall 2012. (Thanks to Steffen Thorsen.) 1326 1327 Assume C89. 1328 1329 To attack the version-number problem, this release ships the file 1330 'Makefile' (which contains the release number) in both the tzcode and 1331 the tzdata tarballs. The two Makefiles are identical, and should be 1332 identical in any matching pair of tarballs, so it shouldn't matter 1333 which order you extract the tarballs. Perhaps we can come up with a 1334 better version-number scheme at some point; this scheme does have the 1335 virtue of not adding more files. 1336 1337 1338 Release 2012f - 2012-09-12 23:17:03 -0700 1339 1340 * australasia (Pacific/Fiji): Fiji DST is October 21 through January 1341 20 this year. (Thanks to Steffen Thorsen.) 1342 1343 1344 Release 2012e - 2012-08-02 20:44:55 -0700 1345 1346 * australasia (Pacific/Fakaofo): Tokelau is UTC+13, not UTC+14. 1347 (Thanks to Steffen Thorsen.) 1348 1349 * Use a single version number for both code and data. 1350 1351 * .gitignore: New file. 1352 1353 * Remove trailing white space. 1354 1355 1356 Release code2012c-data2012d - 2012-07-19 16:35:33 -0700 1357 1358 Changes for Morocco's time stamps, which take effect in a couple of 1359 hours, along with infrastructure changes to accommodate how the tz 1360 code and data are released on IANA. 1361 1362 1363 Release data2012c - 2012-03-27 12:17:25 -0400 1364 1365 africa 1366 Summer time changes for Morocco (to start late April 2012) 1367 1368 asia 1369 Changes for 2012 for Gaza & the West Bank (Hebron) and Syria 1370 1371 northamerica 1372 Haiti following US/Canada rules for 2012 (and we're assuming, 1373 for now anyway, for the future). 1374 1375 1376 Release 2012b - 2012-03-02 12:29:15 +0700 1377 1378 There is just one change to tzcode2012b (compared with 2012a): 1379 the Makefile that was accidentally included with 2012a has been 1380 replaced with the version that should have been there, which is 1381 identical with the previous version (from tzcode2011i). 1382 1383 There are just two changes in tzdata2012b compared with 2012a. 1384 1385 Most significantly, summer time in Cuba has been delayed 3 weeks 1386 (now starts April 1 rather than March 11). Since Mar 11 (the old start 1387 date, as listed in 2012a) is just a little over a week away, this 1388 change is urgent. 1389 1390 Less importantly, an excess tab in one of the changes in zone.tab 1391 in 2012a has been removed. 1392 1393 1394 Release 2012a - 2012-03-01 18:28:10 +0700 1395 1396 The changes in tzcode2012a (compared to the previous version, 2011i) 1397 are entirely to the README and tz-art.htm and tz-link.htm files, if 1398 none of those concern you, you can ignore the code update. The changes 1399 reflect the changed addresses for the mailing list and the code and 1400 data distribution points & methods (and a link to DateTime::TimeZone::Tzfile 1401 has been added to tz-link.htm). 1402 1403 In tzdata2012a (compared to the previous release, which was 2011n) 1404 the major changes are: 1405 Chile 2011/2012 and 2012/2013 summer time date adjustments. 1406 Falkland Islands onto permanent summer time (we're assuming for the 1407 foreseeable future, though 2012 is all we're fairly certain of.) 1408 Armenia has abolished Summer Time. 1409 Tokelau jumped the International Date Line back last December 1410 (just the same as their near neighbour, Samoa). 1411 America/Creston is a new zone for a small area of British Columbia 1412 There will be a leapsecond 2012-06-30 23:59:60 UTC. 1413 1414 Other minor changes are: 1415 Corrections to 1918 Canadian summer time end dates. 1416 Updated URL for UK time zone history (in comments) 1417 A few typos in Le Corre's list of free French place names (comments) 1418 1419 1420 Release data2011n - 2011-10-30 14:57:54 +0700 1421 1422 There are three changes of note - most urgently, Cuba (America/Havana) 1423 has extended summer time by two weeks, now to end on Nov 13, rather than 1424 the (already past) Oct 30. Second, the Pridnestrovian Moldavian Republic 1425 (Europe/Tiraspol) decided not to split from the rest of Moldova after 1426 all, and consequently that zone has been removed (again) and reinstated 1427 in the "backward" file as a link to Europe/Chisinau. And third, the 1428 end date for Fiji's summer time this summer was moved forward from the 1429 earlier planned Feb 26, to Jan 22. 1430 1431 Apart from that, Moldova (MD) returns to a single entry in zone.tab 1432 (and the incorrect syntax that was in the 2011m version of that file 1433 is so fixed - it would have been fixed in a different way had this 1434 change not happened - that's the "missing" sccs version id). 1435 1436 1437 Release data2011m - 2011-10-24 21:42:16 +0700 1438 1439 In particular, the typos in comments in the data (2011-11-17 should have 1440 been 2011-10-17 as Alan Barrett noted, and spelling of Tiraspol that 1441 Tim Parenti noted) have been fixed, and the change for Ukraine has been 1442 made in all 4 Ukrainian zones, rather than just Kiev (again, thanks to 1443 Tim Parenti, and also Denys Gavrysh) 1444 1445 In addition, I added Europe/Tiraspol to zone.tab. 1446 1447 This time, all the files have new version numbers... (including the files 1448 otherwise unchanged in 2011m that were changed in 2011l but didn't get new 1449 version numbers there...) 1450 1451 1452 Release data2011l - 2011-10-10 11:15:43 +0700 1453 1454 There are just 2 changes that cause different generated tzdata files from 1455 zic, to Asia/Hebron and Pacific/Fiji - the possible change for Bahia, Brazil 1456 is included, but commented out. Compared with the diff I sent out last week, 1457 this version also includes attributions for the sources for the changes 1458 (in much the same format as ado used, but the html tags have not been 1459 checked, verified, or used in any way at all, so if there are errors there, 1460 please let me know.) 1461 1462 1463 Release data2011k - 2011-09-20 17:54:03 -0400 1464 1465 [not summarized] 1466 1467 1468 Release data2011j - 2011-09-12 09:22:49 -0400 1469 1470 (contemporary changes for Samoa; past changes for Kenya, Uganda, and 1471 Tanzania); there are also two spelling corrections to comments in 1472 the australasia file (with thanks to Christos Zoulas). 1473 1474 1475 Release 2011i - 2011-08-29 05:56:32 -0400 1476 1477 [not summarized] 1478 1479 1480 Release data2011h - 2011-06-15 18:41:48 -0400 1481 1482 Russia and Curaao changes 1483 1484 1485 Release 2011g - 2011-04-25 09:07:22 -0400 1486 1487 update the rules for Egypt to reflect its abandonment of DST this year 1488 1489 1490 Release 2011f - 2011-04-06 17:14:53 -0400 1491 1492 [not summarized] 1493 1494 1495 Release 2011e - 2011-03-31 16:04:38 -0400 1496 1497 Morocco, Chile, and tz-link changes 1498 1499 1500 Release 2011d - 2011-03-14 09:18:01 -0400 1501 1502 changes that impact present-day time stamps in Cuba, Samoa, and Turkey 1503 1504 1505 Release 2011c - 2011-03-07 09:30:09 -0500 1506 1507 These do affect current time stamps in Chile and Annette Island, Canada. 1508 1509 1510 Release 2011b - 2011-02-07 08:44:50 -0500 1511 1512 [not summarized] 1513 1514 1515 Release 2011a - 2011-01-24 10:30:16 -0500 1516 1517 [not summarized] 1518 1519 1520 Release data2010o - 2010-11-01 09:18:23 -0400 1521 1522 change to the end of DST in Fiji in 2011 1523 1524 1525 Release 2010n - 2010-10-25 08:19:17 -0400 1526 1527 [not summarized] 1528 1529 1530 Release 2010m - 2010-09-27 09:24:48 -0400 1531 1532 Hong Kong, Vostok, and zic.c changes 1533 1534 1535 Release 2010l - 2010-08-16 06:57:25 -0400 1536 1537 [not summarized] 1538 1539 1540 Release 2010k - 2010-07-26 10:42:27 -0400 1541 1542 [not summarized] 1543 1544 1545 Release 2010j - 2010-05-10 09:07:48 -0400 1546 1547 changes for Baha de Banderas and for version naming 1548 1549 1550 Release data2010i - 2010-04-16 18:50:45 -0400 1551 1552 the end of DST in Morocco on 2010-08-08 1553 1554 1555 Release data2010h - 2010-04-05 09:58:56 -0400 1556 1557 [not summarized] 1558 1559 1560 Release data2010g - 2010-03-24 11:14:53 -0400 1561 1562 [not summarized] 1563 1564 1565 Release 2010f - 2010-03-22 09:45:46 -0400 1566 1567 [not summarized] 1568 1569 1570 Release data2010e - 2010-03-08 14:24:27 -0500 1571 1572 corrects the Dhaka bug found by Danvin Ruangchan 1573 1574 1575 Release data2010d - 2010-03-06 07:26:01 -0500 1576 1577 [not summarized] 1578 1579 1580 Release 2010c - 2010-03-01 09:20:58 -0500 1581 1582 changes including KRE's suggestion for earlier initialization of 1583 "goahead" and "goback" structure elements 1584 1585 1586 Release code2010a - 2010-02-16 10:40:04 -0500 1587 1588 [not summarized] 1589 1590 1591 Release data2010b - 2010-01-20 12:37:01 -0500 1592 1593 Mexico changes 1594 1595 1596 Release data2010a - 2010-01-18 08:30:04 -0500 1597 1598 changes to Dhaka 1599 1600 1601 Release data2009u - 2009-12-26 08:32:28 -0500 1602 1603 changes to DST in Bangladesh 1604 1605 1606 Release 2009t - 2009-12-21 13:24:27 -0500 1607 1608 [not summarized] 1609 1610 1611 Release data2009s - 2009-11-14 10:26:32 -0500 1612 1613 (cosmetic) Antarctica change and the DST-in-Fiji-in-2009-and-2010 change 1614 1615 1616 Release 2009r - 2009-11-09 10:10:31 -0500 1617 1618 "antarctica" and "tz-link.htm" changes 1619 1620 1621 Release 2009q - 2009-11-02 09:12:40 -0500 1622 1623 with two corrections as reported by Eric Muller and Philip Newton 1624 1625 1626 Release data2009p - 2009-10-23 15:05:27 -0400 1627 1628 Argentina (including San Luis) changes (with the correction from 1629 Mariano Absatz) 1630 1631 1632 Release data2009o - 2009-10-14 16:49:38 -0400 1633 1634 Samoa (commentary only), Pakistan, and Bangladesh changes 1635 1636 1637 Release data2009n - 2009-09-22 15:13:38 -0400 1638 1639 added commentary for Argentina and a change to the end of DST in 1640 2009 in Pakistan 1641 1642 1643 Release data2009m - 2009-09-03 10:23:43 -0400 1644 1645 Samoa and Palestine changes 1646 1647 1648 Release data2009l - 2009-08-14 09:13:07 -0400 1649 1650 Samoa (comments only) and Egypt 1651 1652 1653 Release 2009k - 2009-07-20 09:46:08 -0400 1654 1655 [not summarized] 1656 1657 1658 Release data2009j - 2009-06-15 06:43:59 -0400 1659 1660 Bangladesh change (with a short turnaround since the DST change is 1661 impending) 1662 1663 1664 Release 2009i - 2009-06-08 09:21:22 -0400 1665 1666 updating for DST in Bangladesh this year 1667 1668 1669 Release 2009h - 2009-05-26 09:19:14 -0400 1670 1671 [not summarized] 1672 1673 1674 Release data2009g - 2009-04-20 16:34:07 -0400 1675 1676 Cairo 1677 1678 1679 Release data2009f - 2009-04-10 11:00:52 -0400 1680 1681 correct DST in Pakistan 1682 1683 1684 Release 2009e - 2009-04-06 09:08:11 -0400 1685 1686 [not summarized] 1687 1688 1689 Release 2009d - 2009-03-23 09:38:12 -0400 1690 1691 Morocco, Tunisia, Argentina, and American Astronomical Society changes 1692 1693 1694 Release data2009c - 2009-03-16 09:47:51 -0400 1695 1696 change to the start of Cuban DST 1697 1698 1699 Release 2009b - 2009-02-09 11:15:22 -0500 1700 1701 [not summarized] 1702 1703 1704 Release 2009a - 2009-01-21 10:09:39 -0500 1705 1706 [not summarized] 1707 1708 1709 Release data2008i - 2008-10-21 12:10:25 -0400 1710 1711 southamerica and zone.tab files, with Argentina DST rule changes and 1712 United States zone reordering and recommenting 1713 1714 1715 Release 2008h - 2008-10-13 07:33:56 -0400 1716 1717 [not summarized] 1718 1719 1720 Release 2008g - 2008-10-06 09:03:18 -0400 1721 1722 Fix a broken HTML anchor and update Brazil's DST transitions; 1723 there's also a slight reordering of information in tz-art.htm. 1724 1725 1726 Release data2008f - 2008-09-09 22:33:26 -0400 1727 1728 [not summarized] 1729 1730 1731 Release 2008e - 2008-07-28 14:11:17 -0400 1732 1733 changes by Arthur David Olson and Jesper Nrgaard Welen 1734 1735 1736 Release data2008d - 2008-07-07 09:51:38 -0400 1737 1738 changes by Arthur David Olson, Paul Eggert, and Rodrigo Severo 1739 1740 1741 Release data2008c - 2008-05-19 17:48:03 -0400 1742 1743 Pakistan, Morocco, and Mongolia 1744 1745 1746 Release data2008b - 2008-03-24 08:30:59 -0400 1747 1748 including renaming Asia/Calcutta to Asia/Kolkata, with a backward 1749 link provided 1750 1751 1752 Release 2008a - 2008-03-08 05:42:16 -0500 1753 1754 [not summarized] 1755 1756 1757 Release 2007k - 2007-12-31 10:25:22 -0500 1758 1759 most importantly, changes to the "southamerica" file based on 1760 Argentina's readoption of daylight saving time 1761 1762 1763 Release 2007j - 2007-12-03 09:51:01 -0500 1764 1765 1. eliminate the "P" (parameter) macro; 1766 1767 2. the "noncontroversial" changes circulated on the time zone 1768 mailing list (less the changes to "logwtmp.c"); 1769 1770 3. eliminate "too many transition" errors when "min" is used in time 1771 zone rules; 1772 1773 4. changes by Paul Eggert (including updated information for Venezuela). 1774 1775 1776 Release data2007i - 2007-10-30 10:28:11 -0400 1777 1778 changes for Cuba and Syria 1779 1780 1781 Release 2007h - 2007-10-01 10:05:51 -0400 1782 1783 changes by Paul Eggert, as well as an updated link to the ICU 1784 project in tz-link.htm 1785 1786 1787 Release 2007g - 2007-08-20 10:47:59 -0400 1788 1789 changes by Paul Eggert 1790 1791 The "leapseconds" file has been updated to incorporate the most 1792 recent International Earth Rotation and Reference Systems Service 1793 (IERS) bulletin. 1794 1795 There's an addition to tz-art.htm regarding the television show "Medium". 1796 1797 1798 Release 2007f - 2007-05-07 10:46:46 -0400 1799 1800 changes by Paul Eggert (including Haiti, Turks and Caicos, and New 1801 Zealand) 1802 1803 changes to zic.c to allow hour values greater than 24 (along with 1804 Paul's improved time value overflow checking) 1805 1806 1807 Release 2007e - 2007-04-02 10:11:52 -0400 1808 1809 Syria and Honduras changes by Paul Eggert 1810 1811 zic.c variable renaming changes by Arthur David Olson 1812 1813 1814 Release 2007d - 2007-03-20 08:48:30 -0400 1815 1816 changes by Paul Eggert 1817 1818 the elimination of white space at the ends of lines 1819 1820 1821 Release 2007c - 2007-02-26 09:09:37 -0500 1822 1823 changes by Paul Eggert 1824 1825 1826 Release 2007b - 2007-02-12 09:34:20 -0500 1827 1828 Paul Eggert's proposed change to the quotation handling logic in zic.c. 1829 1830 changes to the commentary in "leapseconds" reflecting the IERS 1831 announcement that there is to be no positive leap second at the end 1832 of June 2007. 1833 1834 1835 Release 2007a - 2007-01-08 12:28:29 -0500 1836 1837 changes by Paul Eggert 1838 1839 Derick Rethan's Asmara change 1840 1841 Oscar van Vlijmen's Easter Island local mean time change 1842 1843 symbolic link changes 1844 1845 1846 Release 2006p - 2006-11-27 08:54:27 -0500 1847 1848 changes by Paul Eggert 1849 1850 1851 Release 2006o - 2006-11-06 09:18:07 -0500 1852 1853 changes by Paul Eggert 1854 1855 1856 Release 2006n - 2006-10-10 11:32:06 -0400 1857 1858 changes by Paul Eggert 1859 1860 1861 Release 2006m - 2006-10-02 15:32:35 -0400 1862 1863 changes for Uruguay, Palestine, and Egypt by Paul Eggert 1864 1865 (minimalist) changes to zic.8 to clarify "until" information 1866 1867 1868 Release data2006l - 2006-09-18 12:58:11 -0400 1869 1870 Paul's best-effort work on this coming weekend's Egypt time change 1871 1872 1873 Release 2006k - 2006-08-28 12:19:09 -0400 1874 1875 changes by Paul Eggert 1876 1877 1878 Release 2006j - 2006-08-21 09:56:32 -0400 1879 1880 changes by Paul Eggert 1881 1882 1883 Release code2006i - 2006-08-07 12:30:55 -0400 1884 1885 localtime.c fixes 1886 1887 Ken Pizzini's conversion script 1888 1889 1890 Release code2006h - 2006-07-24 09:19:37 -0400 1891 1892 adds public domain notices to four files 1893 1894 includes a fix for transition times being off by a second 1895 1896 adds a new recording to the "arts" file (information courtesy Colin Bowern) 1897 1898 1899 Release 2006g - 2006-05-08 17:18:09 -0400 1900 1901 northamerica changes by Paul Eggert 1902 1903 1904 Release 2006f - 2006-05-01 11:46:00 -0400 1905 1906 a missing version number problem is fixed (with thanks to Bradley 1907 White for catching the problem) 1908 1909 1910 Release 2006d - 2006-04-17 14:33:43 -0400 1911 1912 changes by Paul Eggert 1913 1914 added new items to tz-arts.htm that were found by Paul 1915 1916 1917 Release 2006c - 2006-04-03 10:09:32 -0400 1918 1919 two sets of data changes by Paul Eggert 1920 1921 a fencepost error fix in zic.c 1922 1923 changes to zic.c and the "europe" file to minimize differences 1924 between output produced by the old 32-bit zic and the new 64-bit 1925 version 1926 1927 1928 Release 2006b - 2006-02-20 10:08:18 -0500 1929 [tz32code2006b + tz64code2006b + tzdata2006b] 1930 1931 64-bit code 1932 1933 All SCCS IDs were bumped to "8.1" for this release. 1934 1935 1936 Release 2006a - 2006-01-30 08:59:31 -0500 1937 1938 changes by Paul Eggert (in particular, Indiana time zone moves) 1939 1940 an addition to the zic manual page to describe how special-case 1941 transitions are handled 1942 1943 1944 Release 2005r - 2005-12-27 09:27:13 -0500 1945 1946 Canadian changes by Paul Eggert 1947 1948 They also add "<pre>" directives to time zone data files and reflect 1949 changes to warning message logic in "zdump.c" (but with calls to 1950 "gettext" kept unbundled at the suggestion of Ken Pizzini). 1951 1952 1953 Release 2005q - 2005-12-13 09:17:09 -0500 1954 1955 Nothing earth-shaking here: 1956 1. Electronic mail addresses have been removed. 1957 2. Casts of the return value of exit have been removed. 1958 3. Casts of the argument of is.* macros have been added. 1959 4. Indentation in one section of zic.c has been fixed. 1960 5. References to dead URLs in the data files have been dealt with. 1961 1962 1963 Release 2005p - 2005-12-05 10:30:53 -0500 1964 1965 "systemv", "tz-link.htm", and "zdump.c" changes 1966 (less the casts of arguments to the is* macros) 1967 1968 1969 Release 2005o - 2005-11-28 10:55:26 -0500 1970 1971 Georgia, Cuba, Nicaragua, and Jordan changes by Paul Eggert 1972 1973 zdump.c lint fixes by Arthur David Olson 1974 1975 1976 Release 2005n - 2005-10-03 09:44:09 -0400 1977 1978 changes by Paul Eggert (both the Uruguay changes and the Kyrgyzstan 1979 et al. changes) 1980 1981 1982 Release 2005m - 2005-08-29 12:15:40 -0400 1983 1984 changes by Paul Eggert (with a small tweak to the tz-art change) 1985 1986 a declaration of an unused variable has been removed from zdump.c 1987 1988 1989 Release 2005l - 2005-08-22 12:06:39 -0400 1990 1991 changes by Paul Eggert 1992 1993 overflow/underflow checks by Arthur David Olson, minus changes to 1994 the "Theory" file about the pending addition of 64-bit data (I grow 1995 less confident of the changes being accepted with each passing day, 1996 and the changes no longer increase the data files nine-fold--there's 1997 less than a doubling in size by my local Sun's reckoning) 1998 1999 2000 Release 2005k - 2005-07-14 14:14:24 -0400 2001 2002 The "leapseconds" file has been edited to reflect the recently 2003 announced leap second at the end of 2005. 2004 2005 I've also deleted electronic mail addresses from the files as an 2006 anti-spam measure. 2007 2008 2009 Release 2005j - 2005-06-13 14:34:13 -0400 2010 2011 These reflect changes to limit the length of time zone abbreviations 2012 and the characters used in those abbreviations. 2013 2014 There are also changes to handle POSIX-style "quoted" time zone 2015 environment variables. 2016 2017 The changes were circulated on the time zone mailing list; the only 2018 change since then was the removal of a couple of minimum-length of 2019 abbreviation checks. 2020 2021 2022 Release data2005i - 2005-04-21 15:04:16 -0400 2023 2024 changes (most importantly to Nicaragua and Haiti) by Paul Eggert 2025 2026 2027 Release 2005h - 2005-04-04 11:24:47 -0400 2028 2029 changes by Paul Eggert 2030 2031 minor changes to Makefile and zdump.c to produce more useful output 2032 when doing a "make typecheck" 2033 2034 2035 Release 2005g - 2005-03-14 10:11:21 -0500 2036 2037 changes by Paul Eggert (a change to current DST rules in Uruguay and 2038 an update to a link to time zone software) 2039 2040 2041 Release 2005f - 2005-03-01 08:45:32 -0500 2042 2043 data and documentation changes by Paul Eggert 2044 2045 2046 Release 2005e - 2005-02-10 15:59:44 -0500 2047 2048 [not summarized] 2049 2050 2051 Release code2005d - 2005-01-31 09:21:47 -0500 2052 2053 make zic complain about links to links if the -v flag is used 2054 2055 have "make public" do more code checking 2056 2057 add an include to "localtime.c" for the benefit of gcc systems 2058 2059 2060 Release 2005c - 2005-01-17 18:36:29 -0500 2061 2062 get better results when mktime runs on a system where time_t is double 2063 2064 changes to the data files (most importantly to Paraguay) 2065 2066 2067 Release 2005b - 2005-01-10 09:19:54 -0500 2068 2069 Get localtime and gmtime working on systems with exotic time_t types. 2070 2071 Update the leap second commentary in the "leapseconds" file. 2072 2073 2074 Release 2005a - 2005-01-01 13:13:44 -0500 2075 2076 [not summarized] 2077 2078 2079 Release code2004i - 2004-12-14 13:42:58 -0500 2080 2081 Deal with systems where time_t is unsigned. 2082 2083 2084 Release code2004h - 2004-12-07 11:40:18 -0500 2085 2086 64-bit-time_t changes 2087 2088 2089 Release 2004g - 2004-11-02 09:06:01 -0500 2090 2091 update to Cuba (taking effect this weekend) 2092 2093 other changes by Paul Eggert 2094 2095 correction of the spelling of Oslo 2096 2097 changed versions of difftime.c and private.h 2098 2099 2100 Release code2004f - 2004-10-21 10:25:22 -0400 2101 2102 Cope with wide-ranging tm_year values. 2103 2104 2105 Release 2004e - 2004-10-11 14:47:21 -0400 2106 2107 Brazil/Argentina/Israel changes by Paul Eggert 2108 2109 changes to tz-link.htm by Paul 2110 2111 one small fix to Makefile 2112 2113 2114 Release 2004d - 2004-09-22 08:27:29 -0400 2115 2116 Avoid overflow problems when TM_YEAR_BASE is added to an integer. 2117 2118 2119 Release 2004c - 2004-08-11 12:06:26 -0400 2120 2121 asctime-related changes 2122 2123 (variants of) some of the documentation changes suggested by Paul Eggert 2124 2125 2126 Release 2004b - 2004-07-19 14:33:35 -0400 2127 2128 data changes by Paul Eggert - most importantly, updates for Argentina 2129 2130 2131 Release 2004a - 2004-05-27 12:00:47 -0400 2132 2133 changes by Paul Eggert 2134 2135 Handle DST transitions that occur at the end of a month in some 2136 years but at the start of the following month in other years. 2137 2138 Add a copy of the correspondence that's the basis for claims about 2139 DST in the Navajo Nation. 2140 2141 2142 Release 2003e - 2003-12-15 09:36:47 -0500 2143 2144 changes by Arthur David Olson (primarily code changes) 2145 2146 changes by Paul Eggert (primarily data changes) 2147 2148 minor changes to "Makefile" and "northamerica" (in the latter case, 2149 optimization of the "Toronto" rules) 2150 2151 2152 Release 2003d - 2003-10-06 09:34:44 -0400 2153 2154 changes by Paul Eggert 2155 2156 2157 Release 2003c - 2003-09-16 10:47:05 -0400 2158 2159 Fix bad returns in zic.c's inleap function. 2160 Thanks to Bradley White for catching the problem! 2161 2162 2163 Release 2003b - 2003-09-16 07:13:44 -0400 2164 2165 Add a "--version" option (and documentation) to the zic and zdump commands. 2166 2167 changes to overflow/underflow checking in zic 2168 2169 a localtime typo fix. 2170 2171 Update the leapseconds and tz-art.htm files. 2172 2173 2174 Release 2003a - 2003-03-24 09:30:54 -0500 2175 2176 changes by Paul Eggert 2177 2178 a few additions and modifications to the tz-art.htm file 2179 2180 2181 Release 2002d - 2002-10-15 13:12:42 -0400 2182 2183 changes by Paul Eggert, less the "Britain (UK)" change in iso3166.tab 2184 2185 There's also a new time zone quote in "tz-art.htm". 2186 2187 2188 Release 2002c - 2002-04-04 11:55:20 -0500 2189 2190 changes by Paul Eggert 2191 2192 Change zic.c to avoid creating symlinks to files that don't exist. 2193 2194 2195 Release 2002b - 2002-01-28 12:56:03 -0500 2196 2197 [These change notes are for Release 2002a, which was corrupted. 2198 2002b was a corrected version of 2002a.] 2199 2200 changes by Paul Eggert 2201 2202 Update the "leapseconds" file to note that there'll be no leap 2203 second at the end of June, 2002. 2204 2205 Change "zic.c" to deal with a problem in handling the "Asia/Bishkek" zone. 2206 2207 Change to "difftime.c" to avoid sizeof problems. 2208 2209 2210 Release 2001d - 2001-10-09 13:31:32 -0400 2211 2212 changes by Paul Eggert 2213 2214 2215 Release 2001c - 2001-06-05 13:59:55 -0400 2216 2217 changes by Paul Eggert and Andrew Brown 2218 2219 2220 Release 2001b - 2001-04-05 16:44:38 -0400 2221 2222 changes by Paul Eggert (modulo jnorgard's typo fix) 2223 2224 tz-art.htm has been HTMLified. 2225 2226 2227 Release 2001a - 2001-03-13 12:57:44 -0500 2228 2229 changes by Paul Eggert 2230 2231 An addition to the "leapseconds" file: comments with the text of the 2232 latest IERS leap second notice. 2233 2234 Trailing white space has been removed from data file lines, and 2235 repeated spaces in "Rule Jordan" lines in the "asia" file have been 2236 converted to tabs. 2237 2238 2239 Release 2000h - 2000-12-14 15:33:38 -0500 2240 2241 changes by Paul Eggert 2242 2243 one typo fix in the "art" file 2244 2245 With providence, this is the last update of the millennium. 2246 2247 2248 Release 2000g - 2000-10-10 11:35:22 -0400 2249 2250 changes by Paul Eggert 2251 2252 correction of John Mackin's name submitted by Robert Elz 2253 2254 Garry Shandling's Daylight Saving Time joke (!?!) from the recent 2255 Emmy Awards broadcast. 2256 2257 2258 Release 2000f - 2000-08-10 09:31:58 -0400 2259 2260 changes by Paul Eggert 2261 2262 Added information in "tz-art.htm" on a Seinfeld reference to DST. 2263 2264 Error checking and messages in the "yearistype" script have been 2265 improved. 2266 2267 2268 Release 2000e - 2000-07-31 09:27:54 -0400 2269 2270 data changes by Paul Eggert 2271 2272 a change to the default value of the defined constant HAVE_STRERROR 2273 2274 the addition of a Dave Barry quote on DST to the tz-arts file 2275 2276 2277 Release 2000d - 2000-04-20 15:43:04 -0400 2278 2279 changes to the documentation and code of strftime for C99 conformance 2280 2281 a bug fix for date.c 2282 2283 These are based on (though modified from) changes by Paul Eggert. 2284 2285 2286 Release 2000c - 2000-03-04 10:31:43 -0500 2287 2288 changes by Paul Eggert 2289 2290 2291 Release 2000b - 2000-02-21 12:16:29 -0500 2292 2293 changes by Paul Eggert and Joseph Myers 2294 2295 modest tweaks to the tz-art.htm and tz-link.htm files 2296 2297 2298 Release 2000a - 2000-01-18 09:21:26 -0500 2299 2300 changes by Paul Eggert 2301 2302 The two hypertext documents have also been renamed. 2303 2304 2305 Release code1999i-data1999j - 1999-11-15 18:43:22 -0500 2306 2307 Paul Eggert's changes 2308 2309 additions to the "zic" manual page and the "Arts.htm" file 2310 2311 2312 Release code1999h-data1999i - 1999-11-08 14:55:21 -0500 2313 2314 [not summarized] 2315 2316 2317 Release data1999h - 1999-10-07 03:50:29 -0400 2318 2319 changes by Paul Eggert to "europe" (most importantly, fixing 2320 Lithuania and Estonia) 2321 2322 2323 Release 1999g - 1999-09-28 11:06:18 -0400 2324 2325 data changes by Paul Eggert (most importantly, the change for 2326 Lebanon that buys correctness for this coming Sunday) 2327 2328 The "code" file contains changes to "Makefile" and "checktab.awk" to 2329 allow better checking of time zone files before they are published. 2330 2331 2332 Release 1999f - 1999-09-23 09:48:14 -0400 2333 2334 changes by Arthur David Olson and Paul Eggert 2335 2336 2337 Release 1999e - 1999-08-17 15:20:54 -0400 2338 2339 changes circulated by Paul Eggert, although the change to handling 2340 of DST-specifying time zone names has been commented out for now 2341 (search for "XXX" in "localtime.c" for details). These files also 2342 do not make any changes to the start of DST in Brazil. 2343 2344 In addition to Paul's changes, there are updates to "Arts.htm" and 2345 cleanups of URLs. 2346 2347 2348 Release 1999d - 1999-03-30 11:31:07 -0500 2349 2350 changes by Paul Eggert 2351 2352 The Makefile's "make public" rule has also been changed to do a test 2353 compile of each individual time zone data file (which should help 2354 avoid problems such as the one we had with Nicosia). 2355 2356 2357 Release 1999c - 1999-03-25 09:47:47 -0500 2358 2359 changes by Paul Eggert, most importantly the change for Chile. 2360 2361 2362 Release 1999b - 1999-02-01 17:51:44 -0500 2363 2364 changes by Paul Eggert 2365 2366 code changes (suggested by Mani Varadarajan, mani at be.com) for 2367 correct handling of symbolic links when building using a relative directory 2368 2369 code changes to generate correct messages for failed links 2370 2371 updates to the URLs in Arts.htm 2372 2373 2374 Release 1999a - 1999-01-19 16:20:29 -0500 2375 2376 error message internationalizations and corrections in zic.c and 2377 zdump.c (as suggested by Vladimir Michl, vladimir.michl at upol.cz, 2378 to whom thanks!) 2379 2380 2381 Release code1998h-data1998i - 1998-10-01 09:56:10 -0400 2382 2383 changes for Brazil, Chile, and Germany 2384 2385 support for use of "24:00" in the input files for the time zone compiler 2386 2387 2388 Release code1998g-data1998h - 1998-09-24 10:50:28 -0400 2389 2390 changes by Paul Eggert 2391 2392 correction to a define in the "private.h" file 2393 2394 2395 Release data1998g - 1998-08-11 03:28:35 -0000 2396 [tzdata1998g.tar.gz is missing!] 2397 2398 Lithuanian change provided by mgedmin at pub.osf.it 2399 2400 Move creation of the GMT link with Etc/GMT to "etcetera" (from 2401 "backward") to ensure that the GMT file is created even where folks 2402 don't want the "backward" links (as suggested by Paul Eggert). 2403 2404 2405 Release data1998f - 1998-07-20 13:50:00 -0000 2406 [tzdata1998f.tar.gz is missing!] 2407 2408 Update the "leapseconds" file to include the newly-announced 2409 insertion at the end of 1998. 2410 2411 2412 Release code1998f - 1998-06-01 10:18:31 -0400 2413 2414 addition to localtime.c by Guy Harris 2415 2416 2417 Release 1998e - 1998-05-28 09:56:26 -0400 2418 2419 The Makefile is changed to produce zoneinfo-posix rather than 2420 zoneinfo/posix, and to produce zoneinfo-leaps rather than 2421 zoneinfo/right. 2422 2423 data changes by Paul Eggert 2424 2425 changes from Guy Harris to provide asctime_r and ctime_r 2426 2427 A usno1998 file (substantially identical to usno1997) has been added. 2428 2429 2430 Release 1998d - 1998-05-14 11:58:34 -0400 2431 2432 changes to comments (in particular, elimination of references to CIA maps). 2433 "Arts.htm", "WWW.htm", "asia", and "australasia" are the only places 2434 where changes occur. 2435 2436 2437 Release 1998c - 1998-02-28 12:32:26 -0500 2438 2439 changes by Paul Eggert (save the "French correction," on which I'll 2440 wait for the dust to settle) 2441 2442 symlink changes 2443 2444 changes and additions to Arts.htm 2445 2446 2447 Release 1998b - 1998-01-17 14:31:51 -0500 2448 2449 URL cleanups and additions 2450 2451 2452 Release 1998a - 1998-01-13 12:37:35 -0500 2453 2454 changes by Paul Eggert 2455 2456 2457 Release code1997i-data1997k - 1997-12-29 09:53:41 -0500 2458 2459 changes by Paul Eggert, with minor modifications from Arthur David 2460 Olson to make the files more browser friendly 2461 2462 2463 Release code1997h-data1997j - 1997-12-18 17:47:35 -0500 2464 2465 minor changes to put "TZif" at the start of each time zone information file 2466 2467 a rule has also been added to the Makefile so you can 2468 make zones 2469 to just recompile the zone information files (rather than doing a 2470 full "make install" with its other effects). 2471 2472 2473 Release data1997i - 1997-10-07 08:45:38 -0400 2474 2475 changes to Africa by Paul Eggert 2476 2477 2478 Release code1997g-data1997h - 1997-09-04 16:56:54 -0400 2479 2480 corrections for Uruguay (and other locations) 2481 2482 Arthur David Olson's simple-minded fix allowing mktime to both 2483 correctly handle leap seconds and correctly handle tm_sec values 2484 upon which arithmetic has been performed. 2485 2486 2487 Release code1997f-data1997g - 1997-07-19 13:15:02 -0400 2488 2489 Paul Eggert's updates 2490 2491 a small change to a function prototype; 2492 2493 "Music" has been renamed "Arts.htm", HTMLified, and augmented to 2494 include information on Around the World in Eighty Days. 2495 2496 2497 Release code1997e-data1997f - 1997-05-03 18:52:34 -0400 2498 2499 fixes to zic's error handling 2500 2501 changes inspired by the item circulated on Slovenia 2502 2503 The description of Web resources has been HTMLified for browsing 2504 convenience. 2505 2506 A new piece of tz-related music has been added to the "Music" file. 2507 2508 2509 Release code1997d-data1997e - 1997-03-29 12:48:52 -0500 2510 2511 Paul Eggert's latest suggestions 2512 2513 2514 Release code1997c-data1997d - 1997-03-07 20:37:54 -0500 2515 2516 changes to "zic.c" to correct performance of the "-s" option 2517 2518 a new file "usno1997" 2519 2520 2521 Release data1997c - 1997-03-04 09:58:18 -0500 2522 2523 changes in Israel 2524 2525 2526 Release 1997b - 1997-02-27 18:34:19 -0500 2527 2528 The data file incorporates the 1997 leap second. 2529 2530 The code file incorporates Arthur David Olson's take on the 2531 zic/multiprocessor/directory-creation situation. 2532 2533 2534 Release 1997a - 1997-01-21 09:11:10 -0500 2535 2536 Paul Eggert's Antarctica (and other changes) 2537 2538 Arthur David Olson finessed the "getopt" issue by checking against 2539 both -1 and EOF (regardless of POSIX, SunOS 4.1.1's manual says -1 2540 is returned while SunOS 5.5's manual says EOF is returned). 2541 2542 2543 Release code1996o-data1996n - 1996-12-27 21:42:05 -0500 2544 2545 Paul Eggert's latest changes 2546 2547 2548 Release code1996n - 1996-12-16 09:42:02 -0500 2549 2550 link snapping fix from Bruce Evans (via Garrett Wollman) 2551 2552 2553 Release data1996m - 1996-11-24 02:37:34 -0000 2554 [tzdata1996m.tar.gz is missing!] 2555 2556 Paul Eggert's batch of changes 2557 2558 2559 Release code1996m-data1996l - 1996-11-05 14:00:12 -0500 2560 2561 No functional changes here; the files have simply been changed to 2562 make more use of ISO style dates in comments. The names of the above 2563 files now include the year in full. 2564 2565 2566 Release code96l - 1996-09-08 17:12:20 -0400 2567 2568 tzcode96k was missing a couple of pieces. 2569 2570 2571 Release 96k - 1996-09-08 16:06:22 -0400 2572 2573 the latest round of changes from Paul Eggert 2574 2575 the recent Year 2000 material 2576 2577 2578 Release code96j - 1996-07-30 13:18:53 -0400 2579 2580 Set sp->typecnt as suggested by Timothy Patrick Murphy. 2581 2582 2583 Release code96i - 1996-07-27 20:11:35 -0400 2584 2585 Paul's suggested patch for strftime %V week numbers 2586 2587 2588 Release data96i - 1996-07-01 18:13:04 -0400 2589 2590 "northamerica" and "europe" changes by Paul Eggert 2591 2592 2593 Release code96h - 1996-06-05 08:02:21 -0400 2594 2595 fix for handling transitions specified in Universal Time 2596 2597 Some "public domain" notices have also been added. 2598 2599 2600 Release code96g - 1996-05-16 14:00:26 -0400 2601 2602 fix for the simultaneous-DST-and-zone-change challenge 2603 2604 2605 Release data96h - 1996-05-09 17:40:51 -0400 2606 2607 changes by Paul Eggert 2608 2609 2610 Release code96f-data96g - 1996-05-03 03:09:59 -0000 2611 [tzcode96f.tar.gz + tzdata96g.tar.gz are both missing!] 2612 2613 The changes get us some of the way to fixing the problems noted in Paul 2614 Eggert's letter yesterday (in addition to a few others). The approach 2615 has been to make zic a bit smarter about figuring out what time zone 2616 abbreviations apply just after the time specified in the "UNTIL" part 2617 of a zone line. Putting the smarts in zic means avoiding having 2618 transition times show up in both "Zone" lines and "Rule" lines, which 2619 in turn avoids multiple transition time entries in time zone files. 2620 (This also makes the zic input files such as "europe" a bit shorter and 2621 should ease maintenance.) 2622 2623 2624 Release data96f - 1996-04-19 19:20:03 -0000 2625 [tzdata96f.tar.gz is missing!] 2626 2627 The only changes are to the "northamerica" file; the time zone 2628 abbreviation for Denver is corrected to MST (and MDT), and the 2629 comments for Mexico have been updated. 2630 2631 2632 Release data96e - 1996-03-19 17:37:26 -0500 2633 2634 Proposals by Paul Eggert, in particular the Portugal change that 2635 comes into play at the end of this month. 2636 2637 2638 Release data96d - 1996-03-18 20:49:39 -0500 2639 2640 [not summarized] 2641 2642 2643 Release code96e - 1996-02-29 15:43:27 -0000 2644 [tzcode96e.tar.gz is missing!] 2645 2646 internationalization changes and the fix to the documentation for strftime 2647 2648 2649 Release code96d-data96c - 1996-02-12 11:05:27 -0500 2650 2651 The "code" file simply updates Bob Kridle's electronic address. 2652 2653 The "data" file updates rules for Mexico. 2654 2655 2656 Release data96b - 1996-01-27 15:44:42 -0500 2657 2658 Kiribati change 2659 2660 2661 Release code96c - 1996-01-16 16:58:15 -0500 2662 2663 leap-year streamlining and binary-search changes 2664 2665 fix to newctime.3 2666 2667 2668 Release code96b - 1996-01-10 20:42:39 -0500 2669 2670 fixes and enhancements from Paul Eggert, including code that 2671 emulates the behavior of recent versions of the SunOS "date" 2672 command. 2673 2674 2675 Release 96a - 1996-01-06 09:08:24 -0500 2676 2677 Israel updates 2678 2679 fixes to strftime.c for correct ISO 8601 week number generation, 2680 plus support for two new formats ('G' and 'g') to give ISO 8601 year 2681 numbers (which are not necessarily the same as calendar year numbers) 2682 2683 2684 Release code95i-data95m - 1995-12-21 12:46:47 -0500 2685 2686 The latest revisions from Paul Eggert are included, the usno1995 2687 file has been updated, and a new file ("WWW") covering useful URLs 2688 has been added. 2689 2690 2691 Release code95h-data95l - 1995-12-19 18:10:12 -0500 2692 2693 A simplification of a macro definition, a change to data for Sudan, 2694 and (for last minute shoppers) notes in the "Music" file on the CD 2695 "Old Man Time". 2696 2697 2698 Release code95g-data95k - 1995-10-30 10:32:47 -0500 2699 2700 (slightly reformatted) 8-bit-clean proposed patch 2701 2702 minor patch: US/Eastern -> America/New_York 2703 2704 snapshot of the USNO's latest data ("usno1995") 2705 2706 some other minor cleanups 2707 2708 2709 Release code95f-data95j - 1995-10-28 21:01:34 -0000 2710 [tzcode95f.tar.gz + tzdata95j.tar.gz are both missing!] 2711 2712 European cleanups 2713 2714 support for 64-bit time_t's 2715 2716 optimization in localtime.c 2717 2718 2719 Release code95e - 1995-10-13 13:23:57 -0400 2720 2721 the mktime change to scan from future to past when trying to find time zone 2722 offsets 2723 2724 2725 Release data95i - 1995-09-26 10:43:26 -0400 2726 2727 For Canada/Central, guess that the Sun customer's "one week too 2728 early" was just a approximation, and the true error is one month 2729 too early. This is consistent with the rest of Canada. 2730 2731 2732 Release data95h - 1995-09-21 11:26:48 -0400 2733 2734 latest changes from Paul Eggert 2735 2736 2737 Release code95d - 1995-09-14 11:14:45 -0400 2738 2739 the addition of a "Music" file, which documents four recorded 2740 versions of the tune "Save That Time". 2741 2742 2743 Release data95g - 1995-09-01 17:21:36 -0400 2744 2745 "yearistype" correction 2746 2747 2748 Release data95f - 1995-08-28 20:46:56 -0400 2749 2750 Paul Eggert's change to the australasia file 2751 2752 2753 Release data95e - 1995-07-08 18:02:34 -0400 2754 2755 The only change is a leap second at the end of this year. 2756 Thanks to Bradley White for forwarding news on the leap second. 2757 2758 2759 Release data95d - 1995-07-03 13:26:22 -0400 2760 2761 Paul Eggert's changes 2762 2763 2764 Release data95c - 1995-07-02 19:19:28 -0400 2765 2766 changes to "asia", "backward", "europe", and "southamerica" 2767 (read: northamericacentrics need not apply) 2768 2769 2770 Release code95c - 1995-03-13 14:00:46 -0500 2771 2772 one-line fix for sign extension problems in detzcode 2773 2774 2775 Release 95b - 1995-03-04 11:22:38 -0500 2776 2777 Minor changes in both: 2778 2779 The "code" file contains a workaround for the lack of "unistd.h" in 2780 Microsoft C++ version 7. 2781 2782 The "data" file contains a fixed "Link" for America/Shiprock. 2783 2784 2785 Release 94h - 1994-12-10 12:51:14 -0500 2786 2787 The files: 2788 2789 * incorporate the changes to "zdump" and "date" to make changes to 2790 the "TZ" environment variable permanent; 2791 2792 * incorporate the table changes by Paul Eggert; 2793 2794 * include (and document) support for universal time specifications in 2795 data files - but do not (yet) include use of this feature in the 2796 data files. 2797 2798 Think of this as "TZ Classic" - the software has been set up not to break if 2799 universal time shows up in its input, and data entries have been 2800 left as is so as not to break existing implementations. 2801 2802 2803 Release data94f - 1994-08-20 12:56:09 -0400 2804 2805 (with thanks!) the latest data updates from Paul Eggert 2806 2807 2808 Release data94e - 1994-06-04 13:13:53 -0400 2809 2810 [not summarized] 2811 2812 2813 Release code94g - 1994-05-05 12:14:07 -0400 2814 2815 fix missing "optind.c" and a reference to it in the Makefile 2816 2817 2818 Release code94f - 1994-05-05 13:00:33 -0000 2819 [tzcode94f.tar.gz is missing!] 2820 2821 changes to avoid overflow in difftime, as well as changes to cope 2822 with the 52/53 challenge in strftime 2823 2824 2825 Release code94e - 1994-03-30 23:32:59 -0500 2826 2827 change for the benefit of PCTS 2828 2829 2830 Release 94d - 1994-02-24 15:42:25 -0500 2831 2832 Avoid clashes with POSIX semantics for zones such as GMT+4. 2833 2834 Some other very minor housekeeping is also present. 2835 2836 2837 Release code94c - 1994-02-10 08:52:40 -0500 2838 2839 Fix bug where mkdirs was broken unless you compile with 2840 -fwritable-strings (which is generally losing to do). 2841 2842 2843 Release 94b - 1994-02-07 10:04:33 -0500 2844 2845 work by Paul Eggert who notes: 2846 2847 I found another book of time zone histories by E W Whitman; it's not 2848 as extensive as Shanks but has a few goodies of its own. I used it 2849 to update the tables. I also fixed some more as a result of 2850 correspondence with Adam David and Peter Ilieve, and move some stray 2851 links from 'europe' to 'backward'. I corrected some scanning errors 2852 in usno1989. 2853 2854 As far as the code goes, I fixed zic to allow years in the range 2855 INT_MIN to INT_MAX; this fixed a few boundary conditions around 1900. 2856 And I cleaned up the zic documentation a little bit. 2857 2858 2859 Release data94a - 1994-02-03 08:58:54 -0500 2860 2861 It simply incorporates the recently announced leap second into the 2862 "leapseconds" file. 2863 2864 2865 Release 93g - 1993-11-22 17:28:27 -0500 2866 2867 Paul Eggert has provided a good deal of historic information (based 2868 on Shanks), and there are some code changes to deal with the buglets 2869 that crawled out in dealing with the new information. 2870 2871 2872 Release 93f - 1993-10-15 12:27:46 -0400 2873 2874 Paul Eggert's changes 2875 2876 2877 Release 93e - 1993-09-05 21:21:44 -0400 2878 2879 This has updated data for Israel, England, and Kwajalein. There's 2880 also an update to "zdump" to cope with Kwajalein's 24-hour jump. 2881 Thanks to Paul Eggert and Peter Ilieve for the changes. 2882 2883 2884 Release 93d - 1993-06-17 23:34:17 -0400 2885 2886 new fix and new data on Israel 2887 2888 2889 Release 93c - 1993-06-06 19:31:55 -0400 2890 2891 [not summarized] 2892 2893 2894 Release 93b - 1993-02-02 14:53:58 -0500 2895 2896 updated "leapseconds" file 2897 2898 2899 Release 93 - 1993-01-08 07:01:06 -0500 2900 2901 At kre's suggestion, the package has been split in two - a code piece 2902 (which also includes documentation) that's only of use to folks who 2903 want to recompile things and a data piece useful to anyone who can 2904 run "zic". 2905 2906 The new version has a few changes to the data files, a few 2907 portability changes, and an off-by-one fix (with thanks to 2908 Tom Karzes at deshaw.com for providing a description and a 2909 solution). 2910 2911 2912 Release 92c - 1992-11-21 17:35:36 -0000 2913 [tz92c.tar.Z is missing!] 2914 2915 The fallout from the latest round of DST transitions. 2916 2917 There are changes for Portugal, Saskatchewan, and "Pacific-New"; 2918 there's also a change to "zic.c" that makes it portable to more systems. 2919 2920 2921 Release 92 - 1992-04-25 18:17:03 -0000 2922 [tz92.tar.Z is missing!] 2923 2924 By popular demand (well, at any rate, following a request by kre at munnari) 2925 2926 2927 The 1989 update of the time zone package featured: 2928 2929 * POSIXization (including interpretation of POSIX-style TZ environment 2930 variables, provided by Guy Harris), 2931 * ANSIfication (including versions of "mktime" and "difftime"), 2932 * SVIDulation (an "altzone" variable) 2933 * MACHination (the "gtime" function) 2934 * corrections to some time zone data (including corrections to the rules 2935 for Great Britain and New Zealand) 2936 * reference data from the United States Naval Observatory for folks who 2937 want to do additional time zones 2938 * and the 1989 data for Saudi Arabia. 2939 2940 (Since this code will be treated as "part of the implementation" in some 2941 places and as "part of the application" in others, there's no good way to 2942 name functions, such as timegm, that are not part of the proposed ANSI C 2943 standard; such functions have kept their old, underscore-free names in this 2944 update.) 2945 2946 And the "dysize" function has disappeared; it was present to allow 2947 compilation of the "date" command on old BSD systems, and a version of "date" 2948 is now provided in the package. The "date" command is not created when you 2949 "make all" since it may lack options provided by the version distributed with 2950 your operating system, or may not interact with the system in the same way 2951 the native version does. 2952 2953 Since POSIX frowns on correct leap second handling, the default behavior of 2954 the "zic" command (in the absence of a "-L" option) has been changed to omit 2955 leap second information from its output files. 2956 2957 2958 ----- 2959 Notes 2960 2961 This file contains copies of the part of each release announcement 2962 that talks about the changes in that release. The text has been 2963 adapted and reformatted for the purposes of this file. 2964 2965 Typically a release R consists of a pair of tarball files, 2966 tzcodeR.tar.gz and tzdataR.tar.gz. However, some releases (e.g., 2967 code2010a, data2012c) consist of just one or the other tarball, and a 2968 few (e.g., code2012c-data2012d) have tarballs with mixed version 2969 numbers. 2970 2971 Release time stamps are taken from the release's commit (for newer, 2972 git releases), from the newest file in the tarball (for older 2973 releases, where this info is available) or from the email announcing 2974 the release (if all else fails; these are marked with a time zone of 2975 -0000 and an "is missing!" comment). 2976 2977 Earlier versions of the code and data were not announced on the tz 2978 list and are not summarized here. 2979 2980 This file is in the public domain. 2981 2982 Local Variables: 2983 coding: utf-8 2984 End: 2985
Indexes created Fri Apr 03 00:24:04 UTC 2026