NEWS revision 1.2
1 News for the tz database 2 3 4 Release 2014c - 2014-05-13 07:44:13 -0700 5 6 Changes affecting near-future time stamps 7 8 Egypt observes DST starting May 15. (Thanks to Ahmad El-Dardiry.) 9 Details have not been announced, except that DST will not be observed 10 during Ramadan. Guess that DST will stop during the same Ramadan dates as 11 Morocco, and that Egypt's future spring and fall transitions will be the 12 same as 2010 when it last observed DST, namely April's last Friday at 13 00:00 to September's last Thursday at 23:00 standard time. Also, guess 14 that Ramadan transitions will be at 00:00 standard time. 15 16 Changes affecting code 17 18 zic now generates transitions for minimum time values, eliminating guesswork 19 when handling low-valued time stamps. (Thanks to Arthur David Olson.) 20 21 Port to Cygwin sans glibc. (Thanks to Arthur David Olson.) 22 23 Changes affecting commentary and documentation 24 25 Remove now-confusing comment about Jordan. (Thanks to Oleksii Nochovnyi.) 26 27 28 Release 2014b - 2014-03-24 21:28:50 -0700 29 30 Changes affecting near-future time stamps 31 32 Crimea switches to Moscow time on 2014-03-30 at 02:00 local time. 33 (Thanks to Alexander Krivenyshev.) Move its zone.tab entry from UA to RU. 34 35 New entry for Troll station, Antarctica. (Thanks to Paul-Inge Flakstad and 36 Bengt-Inge Larsson.) This is currently an approximation; a better version 37 will require the zic and localtime fixes mentioned below, and the plan is 38 to wait for a while until at least the zic fixes propagate. 39 40 Changes affecting code 41 42 'zic' and 'localtime' no longer reject locations needing four transitions 43 per year for the forseeable future. (Thanks to Andrew Main (Zefram).) 44 Also, 'zic' avoids some unlikely failures due to integer overflow. 45 46 Changes affecting build procedure 47 48 'make check' now detects Rule lines defined but never used. 49 The NZAQ rules, an instance of this problem, have been removed. 50 51 Changes affecting commentary and documentation 52 53 Fix Tuesday/Thursday typo in description of time in Israel. 54 (Thanks to Bert Katz via Pavel Kharitonov and Mike Frysinger.) 55 56 Microsoft Windows 8.1 doesn't support tz database names. (Thanks 57 to Donald MacQueen.) Instead, the Microsoft Windows Store app 58 library supports them. 59 60 Add comments about Johnston Island time in the 1960s. 61 (Thanks to Lyle McElhaney.) 62 63 Morocco's 2014 DST start will be as predicted. 64 (Thanks to Sebastien Willemijns.) 65 66 67 Release 2014a - 2014-03-07 23:30:29 -0800 68 69 Changes affecting near-future time stamps 70 71 Turkey begins DST on 2014-03-31, not 03-30. (Thanks to Faruk Pasin for 72 the heads-up, and to Tim Parenti for simplifying the update.) 73 74 Changes affecting past time stamps 75 76 Fiji ended DST on 2014-01-19 at 02:00, not the previously-scheduled 03:00. 77 (Thanks to Steffen Thorsen.) 78 79 Ukraine switched from Moscow to Eastern European time on 1990-07-01 80 (not 1992-01-01), and observed DST during the entire next winter. 81 (Thanks to Vladimir in Moscow via Alois Treindl.) 82 83 In 1988 Israel observed DST from 04-10 to 09-04, not 04-09 to 09-03. 84 (Thanks to Avigdor Finkelstein.) 85 86 Changes affecting code 87 88 A uninitialized-storage bug in 'localtime' has been fixed. 89 (Thanks to Logan Chien.) 90 91 Changes affecting the build procedure 92 93 The settings for 'make check_web' now default to Ubuntu 13.10. 94 95 Changes affecting commentary and documentation 96 97 The boundary of the US Pacific time zone is given more accurately. 98 (Thanks to Alan Mintz.) 99 100 Chile's 2014 DST will be as predicted. (Thanks to Jose Miguel Garrido.) 101 102 Paraguay's 2014 DST will be as predicted. (Thanks to Carlos Raul Perasso.) 103 104 Better descriptions of countries with same time zone history as 105 Trinidad and Tobago since 1970. (Thanks to Alan Barrett for suggestion.) 106 107 Several changes affect tz-link.htm, the main web page. 108 109 Mention Time.is (thanks to Even Scharning) and WX-now (thanks to 110 David Braverman). 111 112 Mention xCal (Internet RFC 6321) and jCal. 113 114 Microsoft has some support for tz database names. 115 116 CLDR data is available in both XML and JSON form. 117 118 Mention Maggiolo's map of solar vs standard time. 119 (Thanks to Arthur David Olson.) 120 121 Mention TZ4Net. (Thanks to Matt Johnson.) 122 123 Mention the timezone-olson Haskell package. 124 125 Mention zeitverschiebung.net. (Thanks to Martin Jaeger.) 126 127 Remove moribund links to daylight-savings-time.info and to 128 Simple Timer + Clocks. 129 130 Update two links. (Thanks to Oscar van Vlijmen.) 131 132 Fix some formatting glitches, e.g., remove random newlines from 133 abbr elements' title attributes. 134 135 136 Release 2013i - 2013-12-17 07:25:23 -0800 137 138 Changes affecting near-future time stamps: 139 140 Jordan switches back to standard time at 00:00 on December 20, 2013. 141 The 2006-2011 transition schedule is planned to resume in 2014. 142 (Thanks to Steffen Thorsen.) 143 144 Changes affecting past time stamps: 145 146 In 2004, Cuba began DST on March 28, not April 4. 147 (Thanks to Steffen Thorsen.) 148 149 Changes affecting code 150 151 The compile-time flag NOSOLAR has been removed, as nowadays the 152 benefit of slightly shrinking runtime table size is outweighed by the 153 cost of disallowing potential future updates that exceed old limits. 154 155 Changes affecting documentation and commentary 156 157 The files solar87, solar88, and solar89 are no longer distributed. 158 They were a negative experiment -- that is, a demonstration that 159 tz data can represent solar time only with some difficulty and error. 160 Their presence in the distribution caused confusion, as Riyadh 161 civil time was generally not solar time in those years. 162 163 tz-link.htm now mentions Noda Time. (Thanks to Matt Johnson.) 164 165 166 Release 2013h - 2013-10-25 15:32:32 -0700 167 168 Changes affecting current and future time stamps: 169 170 Libya has switched its time zone back to UTC+2 without DST, 171 instead of UTC+1 with DST. (Thanks to Even Scharning.) 172 173 Western Sahara (Africa/El_Aaiun) uses Morocco's DST rules. 174 (Thanks to Gwillim Law.) 175 176 Changes affecting future time stamps: 177 178 Acre and (we guess) western Amazonas will switch from UTC-4 to UTC-5 179 on 2013-11-10. This affects America/Rio_Branco and America/Eirunepe. 180 (Thanks to Steffen Thorsen.) 181 182 Add entries for DST transitions in Morocco in the year 2038. 183 This avoids some year-2038 glitches introduced in 2013g. 184 (Thanks to Yoshito Umaoka for reporting the problem.) 185 186 Changes affecting API 187 188 The 'tzselect' command no longer requires the 'select' command, 189 and should now work with /bin/sh on more platforms. It also works 190 around a bug in BusyBox awk before version 1.21.0. (Thanks to 191 Patrick 'P. J.' McDermott.) 192 193 Changes affecting code 194 195 Fix localtime overflow bugs with 32-bit unsigned time_t. 196 197 zdump no longer assumes sscanf returns maximal values on overflow. 198 199 Changes affecting the build procedure 200 201 The builder can specify which programs to use, if any, instead of 202 'ar' and 'ranlib', and libtz.a is now built locally before being 203 installed. (Thanks to Michael Forney.) 204 205 A dependency typo in the 'zdump' rule has been fixed. 206 (Thanks to Andrew Paprocki.) 207 208 The Makefile has been simplified by assuming that 'mkdir -p' and 'cp -f' 209 work as specified by POSIX.2-1992 or later; this is portable nowadays. 210 211 'make clean' no longer removes 'leapseconds', since it's 212 host-independent and is part of the distribution. 213 214 The unused makefile macros TZCSRCS, TZDSRCS, DATESRCS have been removed. 215 216 Changes affecting documentation and commentary 217 218 tz-link.htm now mentions TC TIMEZONE's draft timezone service protocol 219 (thanks to Mike Douglass) and TimezoneJS.Date (thanks to Jim Fehrle). 220 221 Update URLs in tz-link page. Add URLs for Microsoft Windows, since 222 8.1 introduces tz support. Remove URLs for Tru64 and UnixWare (no 223 longer maintained) and for old advisories. SOFA now does C. 224 225 Release 2013g - 2013-09-30 21:08:26 -0700 226 227 Changes affecting current and near-future time stamps 228 229 Morocco now observes DST from the last Sunday in March to the last 230 Sunday in October, not April to September respectively. (Thanks 231 to Steffen Thorsen.) 232 233 Changes affecting 'zic' 234 235 'zic' now runs on platforms that lack both hard links and symlinks. 236 (Thanks to Theo Veenker for reporting the problem, for MinGW.) 237 Also, fix some bugs on platforms that lack hard links but have symlinks. 238 239 'zic -v' again warns that Asia/Tehran has no POSIX environment variable 240 to predict the far future, fixing a bug introduced in 2013e. 241 242 Changes affecting the build procedure 243 244 The 'leapseconds' file is again put into the tzdata tarball. 245 Also, 'leapseconds.awk', so tzdata is self-contained. (Thanks to 246 Matt Burgess and Ian Abbott.) The timestamps of these and other 247 dependent files in tarballs are adjusted more consistently. 248 249 Changes affecting documentation and commentary 250 251 The README file is now part of the data tarball as well as the code. 252 It now states that files are public domain unless otherwise specified. 253 (Thanks to Andrew Main (Zefram) for asking for clarifications.) 254 Its details about the 1989 release moved to a place of honor near 255 the end of NEWS. 256 257 258 Release 2013f - 2013-09-24 23:37:36 -0700 259 260 Changes affecting near-future time stamps 261 262 Tocantins will very likely not observe DST starting this spring. 263 (Thanks to Steffen Thorsen.) 264 265 Jordan will likely stay at UTC+3 indefinitely, and will not fall 266 back this fall. 267 268 Palestine will fall back at 00:00, not 01:00. (Thanks to Steffen Thorsen.) 269 270 Changes affecting API 271 272 The types of the global variables 'timezone' and 'altzone' (if present) 273 have been changed back to 'long'. This is required for 'timezone' 274 by POSIX, and for 'altzone' by common practice, e.g., Solaris 11. 275 These variables were originally 'long' in the tz code, but were 276 mistakenly changed to 'time_t' in 1987; nobody reported the 277 incompatibility until now. The difference matters on x32, where 278 'long' is 32 bits and 'time_t' is 64. (Thanks to Elliott Hughes.) 279 280 Changes affecting the build procedure 281 282 Avoid long strings in leapseconds.awk to work around a mawk bug. 283 (Thanks to Cyril Baurand.) 284 285 Changes affecting documentation and commentary 286 287 New file 'NEWS' that contains release notes like this one. 288 289 Paraguay's law does not specify DST transition time; 00:00 is customary. 290 (Thanks to Waldemar Villamayor-Venialbo.) 291 292 Minor capitalization fixes. 293 294 Changes affecting version-control only 295 296 The experimental github repository now contains annotated and 297 signed tags for recent releases, e.g., '2013e' for Release 2013e. 298 Releases are tagged starting with 2012e; earlier releases were 299 done differently, and tags would either not have a simple name or 300 not exactly match what was released. 301 302 'make set-timestamps' is now simpler and a bit more portable. 303 304 305 Release 2013e - 2013-09-19 23:50:04 -0700 306 307 Changes affecting near-future time stamps 308 309 This year Fiji will start DST on October 27, not October 20. 310 (Thanks to David Wheeler for the heads-up.) For now, guess that 311 Fiji will continue to spring forward the Sunday before the fourth 312 Monday in October. 313 314 Changes affecting current and future time zone abbreviations 315 316 Use WIB/WITA/WIT rather than WIT/CIT/EIT for alphabetic Indonesian 317 time zone abbreviations since 1932. (Thanks to George Ziegler, 318 Priyadi Iman Nurcahyo, Zakaria, Jason Grimes, Martin Pitt, and 319 Benny Lin.) This affects Asia/Dili, Asia/Jakarta, Asia/Jayapura, 320 Asia/Makassar, and Asia/Pontianak. 321 322 Use ART (UTC-3, standard time), rather than WARST (also UTC-3, but 323 daylight saving time) for San Luis, Argentina since 2009. 324 325 Changes affecting Godthab time stamps after 2037 if version mismatch 326 327 Allow POSIX-like TZ strings where the transition time's hour can 328 range from -167 through 167, instead of the POSIX-required 0 329 through 24. E.g., TZ='FJT-12FJST,M10.3.1/146,M1.3.4/75' for the 330 new Fiji rules. This is a more-compact way to represent 331 far-future time stamps for America/Godthab, America/Santiago, 332 Antarctica/Palmer, Asia/Gaza, Asia/Hebron, Asia/Jerusalem, 333 Pacific/Easter, and Pacific/Fiji. Other zones are unaffected by 334 this change. (Derived from a suggestion by Arthur David Olson.) 335 336 Allow POSIX-like TZ strings where daylight saving time is in 337 effect all year. E.g., TZ='WART4WARST,J1/0,J365/25' for Western 338 Argentina Summer Time all year. This supports a more-compact way 339 to represent the 2013d data for America/Argentina/San_Luis. 340 Because of the change for San Luis noted above this change does not 341 affect the current data. (Thanks to Andrew Main (Zefram) for 342 suggestions that improved this change.) 343 344 Where these two TZ changes take effect, there is a minor extension 345 to the tz file format in that it allows new values for the 346 embedded TZ-format string, and the tz file format version number 347 has therefore been increased from 2 to 3 as a precaution. 348 Version-2-based client code should continue to work as before for 349 all time stamps before 2038. Existing version-2-based client code 350 (tzcode, GNU/Linux, Solaris) has been tested on version-3-format 351 files, and typically works in practice even for time stamps after 352 2037; the only known exception is America/Godthab. 353 354 Changes affecting time stamps before 1970 355 356 Pacific/Johnston is now a link to Pacific/Honolulu. This corrects 357 some errors before 1947. 358 359 Some zones have been turned into links, when they differ from 360 existing zones only in older data that was likely invented or that 361 differs only in LMT or transition from LMT. These changes affect 362 only time stamps before 1943. The affected zones are: 363 Africa/Juba, America/Anguilla, America/Aruba, America/Dominica, 364 America/Grenada, America/Guadeloupe, America/Marigot, 365 America/Montserrat, America/St_Barthelemy, America/St_Kitts, 366 America/St_Lucia, America/St_Thomas, America/St_Vincent, 367 America/Tortola, and Europe/Vaduz. (Thanks to Alois Treindl for 368 confirming that the old Europe/Vaduz zone was wrong and the new 369 link is better for WWII-era times.) 370 371 Change Kingston Mean Time from -5:07:12 to -5:07:11. This affects 372 America/Cayman, America/Jamaica and America/Grand_Turk time stamps 373 from 1890 to 1912. 374 375 Change the UT offset of Bern Mean Time from 0:29:44 to 0:29:46. 376 This affects Europe/Zurich time stamps from 1853 to 1894. (Thanks 377 to Alois Treindl). 378 379 Change the date of the circa-1850 Zurich transition from 1849-09-12 380 to 1853-07-16, overriding Shanks with data from Messerli about 381 postal and telegraph time in Switzerland. 382 383 Changes affecting time zone abbreviations before 1970 384 385 For Asia/Jakarta, use BMT (not JMT) for mean time from 1923 to 1932, 386 as Jakarta was called Batavia back then. 387 388 Changes affecting API 389 390 The 'zic' command now outputs a dummy transition when far-future 391 data can't be summarized using a TZ string, and uses a 402-year 392 window rather than a 400-year window. For the current data, this 393 affects only the Asia/Tehran file. It does not affect any of the 394 time stamps that this file represents, so zdump outputs the same 395 information as before. (Thanks to Andrew Main (Zefram).) 396 397 The 'date' command has a new '-r' option, which lets you specify 398 the integer time to display, a la FreeBSD. 399 400 The 'tzselect' command has two new options '-c' and '-n', which lets you 401 select a zone based on latitude and longitude. 402 403 The 'zic' command's '-v' option now warns about constructs that 404 require the new version-3 binary file format. (Thanks to Arthur 405 David Olson for the suggestion.) 406 407 Support for floating-point time_t has been removed. 408 It was always dicey, and POSIX no longer requires it. 409 (Thanks to Eric Blake for suggesting to the POSIX committee to 410 remove it, and thanks to Alan Barrett, Clive D.W. Feather, Andy 411 Heninger, Arthur David Olson, and Alois Treindl, for reporting 412 bugs and elucidating some of the corners of the old floating-point 413 implementation.) 414 415 The signatures of 'offtime', 'timeoff', and 'gtime' have been 416 changed back to the old practice of using 'long' to represent UT 417 offsets. This had been inadvertently and mistakenly changed to 418 'int_fast32_t'. (Thanks to Christos Zoulos.) 419 420 The code avoids undefined behavior on integer overflow in some 421 more places, including gmtime, localtime, mktime and zdump. 422 423 Changes affecting the zdump utility 424 425 zdump now outputs "UT" when referring to Universal Time, not "UTC". 426 "UTC" does not make sense for time stamps that predate the introduction 427 of UTC, whereas "UT", a more-generic term, does. (Thanks to Steve Allen 428 for clarifying UT vs UTC.) 429 430 Data changes affecting behavior of tzselect and similar programs 431 432 Country code BQ is now called the more-common name "Caribbean Netherlands" 433 rather than the more-official "Bonaire, St Eustatius & Saba". 434 435 Remove from zone.tab the names America/Montreal, America/Shiprock, 436 and Antarctica/South_Pole, as they are equivalent to existing 437 same-country-code zones for post-1970 time stamps. The data for 438 these names are unchanged, so the names continue to work as before. 439 440 Changes affecting code internals 441 442 zic -c now runs way faster on 64-bit hosts when given large numbers. 443 444 zic now uses vfprintf to avoid allocating and freeing some memory. 445 446 tzselect now computes the list of continents from the data, 447 rather than have it hard-coded. 448 449 Minor changes pacify GCC 4.7.3 and GCC 4.8.1. 450 451 Changes affecting the build procedure 452 453 The 'leapseconds' file is now generated automatically from a 454 new file 'leap-seconds.list', which is a copy of 455 <ftp://time.nist.gov/pub/leap-seconds.list>. 456 A new source file 'leapseconds.awk' implements this. 457 The goal is simplification of the future maintenance of 'leapseconds'. 458 459 When building the 'posix' or 'right' subdirectories, if the 460 subdirectory would be a copy of the default subdirectory, it is 461 now made a symbolic link if that is supported. This saves about 462 2 MB of file system space. 463 464 The links America/Shiprock and Antarctica/South_Pole have been 465 moved to the 'backward' file. This affects only nondefault builds 466 that omit 'backward'. 467 468 Changes affecting version-control only 469 470 .gitignore now ignores 'date'. 471 472 Changes affecting documentation and commentary 473 474 Changes to the 'tzfile' man page 475 476 It now mentions that the binary file format may be extended in 477 future versions by appending data. 478 479 It now refers to the 'zdump' and 'zic' man pages. 480 481 Changes to the 'zic' man page 482 483 It lists conditions that elicit a warning with '-v'. 484 485 It says that the behavior is unspecified when duplicate names 486 are given, or if the source of one link is the target of another. 487 488 Its examples are updated to match the latest data. 489 490 The definition of white space has been clarified slightly. 491 (Thanks to Michael Deckers.) 492 493 Changes to the 'Theory' file 494 495 There is a new section about the accuracy of the tz database, 496 describing the many ways that errors can creep in, and 497 explaining why so many of the pre-1970 time stamps are wrong or 498 misleading (thanks to Steve Allen, Lester Caine, and Garrett 499 Wollman for discussions that contributed to this). 500 501 The 'Theory' file describes LMT better (this follows a 502 suggestion by Guy Harris). 503 504 It refers to the 2013 edition of POSIX rather than the 2004 edition. 505 506 It's mentioned that excluding 'backward' should not affect the 507 other data, and it suggests at least one zone.tab name per 508 inhabited country (thanks to Stephen Colebourne). 509 510 Some longstanding restrictions on names are documented, e.g., 511 'America/New_York' precludes 'America/New_York/Bronx'. 512 513 It gives more reasons for the 1970 cutoff. 514 515 It now mentions which time_t variants are supported, such as 516 signed integer time_t. (Thanks to Paul Goyette for reporting 517 typos in an experimental version of this change.) 518 519 (Thanks to Philip Newton for correcting typos in these changes.) 520 521 Documentation and commentary is more careful to distinguish UT in 522 general from UTC in particular. (Thanks to Steve Allen.) 523 524 Add a better source for the Zurich 1894 transition. 525 (Thanks to Pierre-Yves Berger.) 526 527 Update shapefile citations in tz-link.htm. (Thanks to Guy Harris.) 528 529 530 Release 2013d - 2013-07-05 07:38:01 -0700 531 532 Changes affecting future time stamps: 533 534 Morocco's midsummer transitions this year are July 7 and August 10, 535 not July 9 and August 8. (Thanks to Andrew Paprocki.) 536 537 Israel now falls back on the last Sunday of October. 538 (Thanks to Ephraim Silverberg.) 539 540 Changes affecting past time stamps: 541 542 Specify Jerusalem's location more precisely; this changes the pre-1880 543 times by 2 s. 544 545 Changing affecting metadata only: 546 547 Fix typos in the entries for country codes BQ and SX. 548 549 Changes affecting code: 550 551 Rework the code to fix a bug with handling Australia/Macquarie on 552 32-bit hosts (thanks to Arthur David Olson). 553 554 Port to platforms like NetBSD, where time_t can be wider than long. 555 556 Add support for testing time_t types other than the system's. 557 Run 'make check_time_t_alternatives' to try this out. 558 Currently, the tests fail for unsigned time_t; 559 this should get fixed at some point. 560 561 Changes affecting documentation and commentary: 562 563 Deemphasize the significance of national borders. 564 565 Update the zdump man page. 566 567 Remove obsolete NOID comment (thanks to Denis Excoffier). 568 569 Update several URLs and comments in the web pages. 570 571 Spelling fixes (thanks to Kevin Lyda and Jonathan Leffler). 572 573 Update URL for CLDR Zone->Tzid table (thanks to Yoshito Umaoka). 574 575 576 Release 2013c - 2013-04-19 16:17:40 -0700 577 578 Changes affecting current and future time stamps: 579 580 Palestine observed DST starting March 29, 2013. (Thanks to 581 Steffen Thorsen.) From 2013 on, Gaza and Hebron both observe DST, 582 with the predicted rules being the last Thursday in March at 24:00 583 to the first Friday on or after September 21 at 01:00. 584 585 Assume that the recent change to Paraguay's DST rules is permanent, 586 by moving the end of DST to the 4th Sunday in March every year. 587 (Thanks to Carlos Raul Perasso.) 588 589 Changes affecting past time stamps: 590 591 Fix some historical data for Palestine to agree with that of 592 timeanddate.com, as follows: 593 594 The spring 2008 change in Gaza and Hebron was on 00:00 Mar 28, not 595 00:00 Apr 1. 596 597 The fall 2009 change in Gaza and Hebron on Sep 4 was at 01:00, not 598 02:00. 599 600 The spring 2010 change in Hebron was 00:00 Mar 26, not 00:01 Mar 27. 601 602 The spring 2011 change in Gaza was 00:01 Apr 1, not 12:01 Apr 2. 603 604 The spring 2011 change in Hebron on Apr 1 was at 00:01, not 12:01. 605 606 The fall 2011 change in Hebron on Sep 30 was at 00:00, not 03:00. 607 608 Fix times of habitation for Macquarie to agree with the Tasmania 609 Parks & Wildlife Service history, which indicates that permanent 610 habitation was 1899-1919 and 1948 on. 611 612 Changing affecting metadata only: 613 614 Macquarie Island is politically part of Australia, not Antarctica. 615 (Thanks to Tobias Conradi.) 616 617 Sort Macquarie more-consistently with other parts of Australia. 618 (Thanks to Tim Parenti.) 619 620 621 Release 2013b - 2013-03-10 22:33:40 -0700 622 623 Changes affecting current and future time stamps: 624 625 Haiti uses US daylight-saving rules this year, and presumably future years. 626 This changes time stamps starting today. (Thanks to Steffen Thorsen.) 627 628 Paraguay will end DST on March 24 this year. 629 (Thanks to Steffen Thorsen.) For now, assume it's just this year. 630 631 Morocco does not observe DST during Ramadan; 632 try to predict Ramadan in Morocco as best we can. 633 (Thanks to Erik Homoet for the heads-up.) 634 635 Changes affecting commentary: 636 637 Update URLs in tz-link page. Add URLs for webOS, BB10, iOS. 638 Update URL for Solaris. Mention Internet RFC 6557. 639 Update Internet RFCs 2445->5545, 2822->5322. 640 Switch from FTP to HTTP for Internet RFCs. 641 642 643 Release 2013a - 2013-02-27 09:20:35 -0800 644 645 Change affecting binary data format: 646 647 The zone offset at the end of version-2-format zone files is now 648 allowed to be 24:00, as per POSIX.1-2008. (Thanks to Arthor David Olson.) 649 650 Changes affecting current and future time stamps: 651 652 Chile's 2013 rules, and we guess rules for 2014 and later, will be 653 the same as 2012, namely Apr Sun>=23 03:00 UTC to Sep Sun>=2 04:00 UTC. 654 (Thanks to Steffen Thorsen and Robert Elz.) 655 656 New Zones Asia/Khandyga, Asia/Ust-Nera, Europe/Busingen. 657 (Thanks to Tobias Conradi and Arthur David Olson.) 658 659 Many changes affect historical time stamps before 1940. 660 These were deduced from: Milne J. Civil time. Geogr J. 1899 661 Feb;13(2):173-94 <http://www.jstor.org/stable/1774359>. 662 663 Changes affecting the code: 664 665 Fix zic bug that mishandled Egypt's 2010 changes (this also affected 666 the data). (Thanks to Arthur David Olson.) 667 668 Fix localtime bug when time_t is unsigned and data files were generated 669 by a signed time_t system. (Thanks to Doug Bailey for reporting and 670 to Arthur David Olson for fixing.) 671 672 Allow the email address for bug reports to be set by the packager. 673 The default is tz (a] iana.org, as before. (Thanks to Joseph S. Myers.) 674 675 Update HTML checking to be compatible with Ubuntu 12.10. 676 677 Check that files are a safe subset of ASCII. At some point we may 678 relax this requirement to a safe subset of UTF-8. Without the 679 check, some non-UTF-8 encodings were leaking into the distribution. 680 681 Commentary changes: 682 683 Restore a comment about copyright notices that was inadvertently deleted. 684 (Thanks to Arthur David Olson.) 685 686 Improve the commentary about which districts observe what times 687 in Russia. (Thanks to Oscar van Vlijmen and Arthur David Olson). 688 689 Add web page links to tz.js. 690 691 Add "Run by the Monkeys" to tz-art. (Thanks to Arthur David Olson.) 692 693 694 Release 2012j - 2012-11-12 18:34:49 -0800 695 696 Libya moved to CET this weekend, but with DST planned next year. 697 (Thanks to Even Scharning, Steffen Thorsen, and Tim Parenti.) 698 699 Signatures now have the extension .asc, not .sign, as that's more 700 standard. (Thanks to Phil Pennock.) 701 702 The output of 'zdump --version', and of 'zic --version', now 703 uses a format that is more typical for --version. 704 (Thanks to Joseph S. Myers.) 705 706 The output of 'tzselect --help', 'zdump --help', and 'zic --help' 707 now uses tz (a] iana.org rather than the old elsie address. 708 709 zic -v now complains about abbreviations that are less than 3 710 or more than 6 characters, as per Posix. Formerly, it checked 711 for abbreviations that were more than 3. 712 713 'make public' no longer puts its temporary directory under /tmp, 714 and uses the just-built zic rather than the system zic. 715 716 Various fixes to documentation and commentary. 717 718 719 Release 2012i - 2012-11-03 12:57:09 -0700 720 721 Cuba switches from DST tomorrow at 01:00. (Thanks to Steffen Thorsen.) 722 723 Linker flags can now be specified via LDFLAGS. 724 AWK now defaults to 'awk', not 'nawk'. 725 The shell in tzselect now defaults to /bin/bash, but this can 726 be overridden by specifying KSHELL. 727 The main web page now mentions the unofficial github repository. 728 (Thanks to Mike Frysinger.) 729 730 Tarball signatures can now be built by running 'make signatures'. 731 There are also new makefile rules 'tarballs', 'check_public', and 732 separate makefile rules for each tarball and signature file. 733 A few makefile rules are now more portable to strict POSIX. 734 735 The main web page now lists the canonical IANA URL. 736 737 738 Release 2012h - 2012-10-26 22:49:10 -0700 739 740 Bahia no longer has DST. (Thanks to Kelley Cook.) 741 742 Tocantins has DST. (Thanks to Rodrigo Severo.) 743 744 Israel has new DST rules next year. (Thanks to Ephraim Silverberg.) 745 746 Jordan stays on DST this winter. (Thanks to Steffen Thorsen.) 747 748 Web page updates. 749 750 More C modernization, except that at Arthur David Olson's suggestion 751 the instances of 'register' were kept. 752 753 754 Release 2012g - 2012-10-17 20:59:45 -0700 755 756 Samoa fall 2012 and later. (Thanks to Nicholas Pereira and Robert Elz.) 757 758 Palestine fall 2012. (Thanks to Steffen Thorsen.) 759 760 Assume C89. 761 762 To attack the version-number problem, this release ships the file 763 'Makefile' (which contains the release number) in both the tzcode and 764 the tzdata tarballs. The two Makefiles are identical, and should be 765 identical in any matching pair of tarballs, so it shouldn't matter 766 which order you extract the tarballs. Perhaps we can come up with a 767 better version-number scheme at some point; this scheme does have the 768 virtue of not adding more files. 769 770 771 Release 2012f - 2012-09-12 23:17:03 -0700 772 773 * australasia (Pacific/Fiji): Fiji DST is October 21 through January 774 20 this year. (Thanks to Steffen Thorsen.) 775 776 777 Release 2012e - 2012-08-02 20:44:55 -0700 778 779 * australasia (Pacific/Fakaofo): Tokelau is UTC+13, not UTC+14. 780 (Thanks to Steffen Thorsen.) 781 782 * Use a single version number for both code and data. 783 784 * .gitignore: New file. 785 786 * Remove trailing white space. 787 788 789 Release code2012c-data2012d - 2012-07-19 16:35:33 -0700 790 791 Changes for Morocco's time stamps, which take effect in a couple of 792 hours, along with infrastructure changes to accommodate how the tz 793 code and data are released on IANA. 794 795 796 Release data2012c - 2012-03-27 12:17:25 -0400 797 798 africa 799 Summer time changes for Morocco (to start late April 2012) 800 801 asia 802 Changes for 2012 for Gaza & the West Bank (Hebron) and Syria 803 804 northamerica 805 Haiti following US/Canada rules for 2012 (and we're assuming, 806 for now anyway, for the future). 807 808 809 Release 2012b - 2012-03-02 12:29:15 +0700 810 811 There is just one change to tzcode2012b (compared with 2012a): 812 the Makefile that was accidentally included with 2012a has been 813 replaced with the version that should have been there, which is 814 identical with the previous version (from tzcode2011i). 815 816 There are just two changes in tzdata2012b compared with 2012a. 817 818 Most significantly, summer time in Cuba has been delayed 3 weeks 819 (now starts April 1 rather than March 11). Since Mar 11 (the old start 820 date, as listed in 2012a) is just a little over a week away, this 821 change is urgent. 822 823 Less importantly, an excess tab in one of the changes in zone.tab 824 in 2012a has been removed. 825 826 827 Release 2012a - 2012-03-01 18:28:10 +0700 828 829 The changes in tzcode2012a (compared to the previous version, 2011i) 830 are entirely to the README and tz-art.htm and tz-link.htm files, if 831 none of those concern you, you can ignore the code update. The changes 832 reflect the changed addresses for the mailing list and the code and 833 data distribution points & methods (and a link to DateTime::TimeZone::Tzfile 834 has been added to tz-link.htm). 835 836 In tzdata2012a (compared to the previous release, which was 2011n) 837 the major changes are: 838 Chile 2011/2012 and 2012/2013 summer time date adjustments. 839 Falkland Islands onto permanent summer time (we're assuming for the 840 foreseeable future, though 2012 is all we're fairly certain of.) 841 Armenia has abolished Summer Time. 842 Tokelau jumped the International Date Line back last December 843 (just the same as their near neighbour, Samoa). 844 America/Creston is a new zone for a small area of British Columbia 845 There will be a leapsecond 2012-06-30 23:59:60 UTC. 846 847 Other minor changes are: 848 Corrections to 1918 Canadian summer time end dates. 849 Updated URL for UK timezone history (in comments) 850 A few typos in Le Corre's list of free French place names (comments) 851 852 853 Release data2011n - 2011-10-30 14:57:54 +0700 854 855 There are three changes of note - most urgently, Cuba (America/Havana) 856 has extended summer time by two weeks, now to end on Nov 13, rather than 857 the (already past) Oct 30. Second, the Pridnestrovian Moldavian Republic 858 (Europe/Tiraspol) decided not to split from the rest of Moldova after 859 all, and consequently that zone has been removed (again) and reinstated 860 in the "backward" file as a link to Europe/Chisinau. And third, the 861 end date for Fiji's summer time this summer was moved forward from the 862 earlier planned Feb 26, to Jan 22. 863 864 Apart from that, Moldova (MD) returns to a single entry in zone.tab 865 (and the incorrect syntax that was in the 2011m version of that file 866 is so fixed - it would have been fixed in a different way had this 867 change not happened - that's the "missing" sccs version id). 868 869 870 Release data2011m - 2011-10-24 21:42:16 +0700 871 872 In particular, the typos in comments in the data (2011-11-17 should have 873 been 2011-10-17 as Alan Barrett noted, and spelling of Tiraspol that 874 Tim Parenti noted) have been fixed, and the change for Ukraine has been 875 made in all 4 Ukrainian zones, rather than just Kiev (again, thanks to 876 Tim Parenti, and also Denys Gavrysh) 877 878 In addition, I added Europe/Tiraspol to zone.tab. 879 880 This time, all the files have new version numbers... (including the files 881 otherwise unchanged in 2011m that were changed in 2011l but didn't get new 882 version numbers there...) 883 884 885 Release data2011l - 2011-10-10 11:15:43 +0700 886 887 There are just 2 changes that cause different generated tzdata files from 888 zic, to Asia/Hebron and Pacific/Fiji - the possible change for Bahia, Brazil 889 is included, but commented out. Compared with the diff I sent out last week, 890 this version also includes attributions for the sources for the changes 891 (in much the same format as ado used, but the html tags have not been 892 checked, verified, or used in any way at all, so if there are errors there, 893 please let me know.) 894 895 896 Release data2011k - 2011-09-20 17:54:03 -0400 897 898 [not summarized] 899 900 901 Release data2011j - 2011-09-12 09:22:49 -0400 902 903 (contemporary changes for Samoa; past changes for Kenya, Uganda, and 904 Tanzania); there are also two spelling corrections to comments in 905 the australasia file (with thanks to Christos Zoulas). 906 907 908 Release 2011i - 2011-08-29 05:56:32 -0400 909 910 [not summarized] 911 912 913 Release data2011h - 2011-06-15 18:41:48 -0400 914 915 Russia and Curacao changes 916 917 918 Release 2011g - 2011-04-25 09:07:22 -0400 919 920 update the rules for Egypt to reflect its abandonment of DST this year 921 922 923 Release 2011f - 2011-04-06 17:14:53 -0400 924 925 [not summarized] 926 927 928 Release 2011e - 2011-03-31 16:04:38 -0400 929 930 Morocco, Chile, and tz-link changes 931 932 933 Release 2011d - 2011-03-14 09:18:01 -0400 934 935 changes that impact present-day time stamps in Cuba, Samoa, and Turkey 936 937 938 Release 2011c - 2011-03-07 09:30:09 -0500 939 940 These do affect current time stamps in Chile and Annette Island, Canada. 941 942 943 Release 2011b - 2011-02-07 08:44:50 -0500 944 945 [not summarized] 946 947 948 Release 2011a - 2011-01-24 10:30:16 -0500 949 950 [not summarized] 951 952 953 Release data2010o - 2010-11-01 09:18:23 -0400 954 955 change to the end of DST in Fiji in 2011 956 957 958 Release 2010n - 2010-10-25 08:19:17 -0400 959 960 [not summarized] 961 962 963 Release 2010m - 2010-09-27 09:24:48 -0400 964 965 Hong Kong, Vostok, and zic.c changes 966 967 968 Release 2010l - 2010-08-16 06:57:25 -0400 969 970 [not summarized] 971 972 973 Release 2010k - 2010-07-26 10:42:27 -0400 974 975 [not summarized] 976 977 978 Release 2010j - 2010-05-10 09:07:48 -0400 979 980 changes for Bahia de Banderas and for version naming 981 982 983 Release data2010i - 2010-04-16 18:50:45 -0400 984 985 the end of DST in Morocco on 2010-08-08 986 987 988 Release data2010h - 2010-04-05 09:58:56 -0400 989 990 [not summarized] 991 992 993 Release data2010g - 2010-03-24 11:14:53 -0400 994 995 [not summarized] 996 997 998 Release 2010f - 2010-03-22 09:45:46 -0400 999 1000 [not summarized] 1001 1002 1003 Release data2010e - 2010-03-08 14:24:27 -0500 1004 1005 corrects the Dhaka bug found by Danvin Ruangchan 1006 1007 1008 Release data2010d - 2010-03-06 07:26:01 -0500 1009 1010 [not summarized] 1011 1012 1013 Release 2010c - 2010-03-01 09:20:58 -0500 1014 1015 changes including KRE's suggestion for earlier initialization of 1016 "goahead" and "goback" structure elements 1017 1018 1019 Release code2010a - 2010-02-16 10:40:04 -0500 1020 1021 [not summarized] 1022 1023 1024 Release data2010b - 2010-01-20 12:37:01 -0500 1025 1026 Mexico changes 1027 1028 1029 Release data2010a - 2010-01-18 08:30:04 -0500 1030 1031 changes to Dhaka 1032 1033 1034 Release data2009u - 2009-12-26 08:32:28 -0500 1035 1036 changes to DST in Bangladesh 1037 1038 1039 Release 2009t - 2009-12-21 13:24:27 -0500 1040 1041 [not summarized] 1042 1043 1044 Release data2009s - 2009-11-14 10:26:32 -0500 1045 1046 (cosmetic) Antarctica change and the DST-in-Fiji-in-2009-and-2010 change 1047 1048 1049 Release 2009r - 2009-11-09 10:10:31 -0500 1050 1051 "antarctica" and "tz-link.htm" changes 1052 1053 1054 Release 2009q - 2009-11-02 09:12:40 -0500 1055 1056 with two corrections as reported by Eric Muller and Philip Newton 1057 1058 1059 Release data2009p - 2009-10-23 15:05:27 -0400 1060 1061 Argentina (including San Luis) changes (with the correction from 1062 Mariano Absatz) 1063 1064 1065 Release data2009o - 2009-10-14 16:49:38 -0400 1066 1067 Samoa (commentary only), Pakistan, and Bangladesh changes 1068 1069 1070 Release data2009n - 2009-09-22 15:13:38 -0400 1071 1072 added commentary for Argentina and a change to the end of DST in 1073 2009 in Pakistan 1074 1075 1076 Release data2009m - 2009-09-03 10:23:43 -0400 1077 1078 Samoa and Palestine changes 1079 1080 1081 Release data2009l - 2009-08-14 09:13:07 -0400 1082 1083 Samao (comments only) and Egypt 1084 1085 1086 Release 2009k - 2009-07-20 09:46:08 -0400 1087 1088 [not summarized] 1089 1090 1091 Release data2009j - 2009-06-15 06:43:59 -0400 1092 1093 Bangladesh change (with a short turnaround since the DST change is 1094 impending) 1095 1096 1097 Release 2009i - 2009-06-08 09:21:22 -0400 1098 1099 updating for DST in Bangladesh this year 1100 1101 1102 Release 2009h - 2009-05-26 09:19:14 -0400 1103 1104 [not summarized] 1105 1106 1107 Release data2009g - 2009-04-20 16:34:07 -0400 1108 1109 Cairo 1110 1111 1112 Release data2009f - 2009-04-10 11:00:52 -0400 1113 1114 correct DST in Pakistan 1115 1116 1117 Release 2009e - 2009-04-06 09:08:11 -0400 1118 1119 [not summarized] 1120 1121 1122 Release 2009d - 2009-03-23 09:38:12 -0400 1123 1124 Morocco, Tunisia, Argentina, and American Astronomical Society changes 1125 1126 1127 Release data2009c - 2009-03-16 09:47:51 -0400 1128 1129 change to the start of Cuban DST 1130 1131 1132 Release 2009b - 2009-02-09 11:15:22 -0500 1133 1134 [not summarized] 1135 1136 1137 Release 2009a - 2009-01-21 10:09:39 -0500 1138 1139 [not summarized] 1140 1141 1142 Release data2008i - 2008-10-21 12:10:25 -0400 1143 1144 southamerica and zone.tab files, with Argentina DST rule changes and 1145 United States zone reordering and recommenting 1146 1147 1148 Release 2008h - 2008-10-13 07:33:56 -0400 1149 1150 [not summarized] 1151 1152 1153 Release 2008g - 2008-10-06 09:03:18 -0400 1154 1155 Fix a broken HTML anchor and update Brazil's DST transitions; 1156 there's also a slight reordering of information in tz-art.htm. 1157 1158 1159 Release data2008f - 2008-09-09 22:33:26 -0400 1160 1161 [not summarized] 1162 1163 1164 Release 2008e - 2008-07-28 14:11:17 -0400 1165 1166 changes by Arthur David Olson and Jesper Norgaard Welen 1167 1168 1169 Release data2008d - 2008-07-07 09:51:38 -0400 1170 1171 changes by Arthur David Olson, Paul Eggert, and Rodrigo Severo 1172 1173 1174 Release data2008c - 2008-05-19 17:48:03 -0400 1175 1176 Pakistan, Morocco, and Mongolia 1177 1178 1179 Release data2008b - 2008-03-24 08:30:59 -0400 1180 1181 including renaming Asia/Calcutta to Asia/Kolkata, with a backward 1182 link provided 1183 1184 1185 Release 2008a - 2008-03-08 05:42:16 -0500 1186 1187 [not summarized] 1188 1189 1190 Release 2007k - 2007-12-31 10:25:22 -0500 1191 1192 most importantly, changes to the "southamerica" file based on 1193 Argentina's readoption of daylight saving time 1194 1195 1196 Release 2007j - 2007-12-03 09:51:01 -0500 1197 1198 1. eliminate the "P" (parameter) macro; 1199 1200 2. the "noncontroversial" changes circulated on the time zone 1201 mailing list (less the changes to "logwtmp.c"); 1202 1203 3. eliminate "too many transition" errors when "min" is used in time 1204 zone rules; 1205 1206 4. changes by Paul Eggert (including updated information for Venezuela). 1207 1208 1209 Release data2007i - 2007-10-30 10:28:11 -0400 1210 1211 changes for Cuba and Syria 1212 1213 1214 Release 2007h - 2007-10-01 10:05:51 -0400 1215 1216 changes by Paul Eggert, as well as an updated link to the ICU 1217 project in tz-link.htm 1218 1219 1220 Release 2007g - 2007-08-20 10:47:59 -0400 1221 1222 changes by Paul Eggert 1223 1224 The "leapseconds" file has been updated to incorporate the most 1225 recent International Earth Rotation and Reference Systems Service 1226 (IERS) bulletin. 1227 1228 There's an addition to tz-art.htm regarding the television show "Medium". 1229 1230 1231 Release 2007f - 2007-05-07 10:46:46 -0400 1232 1233 changes by Paul Eggert (including Haiti, Turks and Caicos, and New 1234 Zealand) 1235 1236 changes to zic.c to allow hour values greater than 24 (along with 1237 Paul's improved time value overflow checking) 1238 1239 1240 Release 2007e - 2007-04-02 10:11:52 -0400 1241 1242 Syria and Honduras changes by Paul Eggert 1243 1244 zic.c variable renaming changes by Arthur David Olson 1245 1246 1247 Release 2007d - 2007-03-20 08:48:30 -0400 1248 1249 changes by Paul Eggert 1250 1251 the elimination of white space at the ends of lines 1252 1253 1254 Release 2007c - 2007-02-26 09:09:37 -0500 1255 1256 changes by Paul Eggert 1257 1258 1259 Release 2007b - 2007-02-12 09:34:20 -0500 1260 1261 Paul Eggert's proposed change to the quotation handling logic in zic.c. 1262 1263 changes to the commentary in "leapseconds" reflecting the IERS 1264 announcement that there is to be no positive leap second at the end 1265 of June 2007. 1266 1267 1268 Release 2007a - 2007-01-08 12:28:29 -0500 1269 1270 changes by Paul Eggert 1271 1272 Derick Rethan's Asmara change 1273 1274 Oscar van Vlijmen's Easter Island local mean time change 1275 1276 symbolic link changes 1277 1278 1279 Release 2006p - 2006-11-27 08:54:27 -0500 1280 1281 changes by Paul Eggert 1282 1283 1284 Release 2006o - 2006-11-06 09:18:07 -0500 1285 1286 changes by Paul Eggert 1287 1288 1289 Release 2006n - 2006-10-10 11:32:06 -0400 1290 1291 changes by Paul Eggert 1292 1293 1294 Release 2006m - 2006-10-02 15:32:35 -0400 1295 1296 changes for Uruguay, Palestine, and Egypt by Paul Eggert 1297 1298 (minimalist) changes to zic.8 to clarify "until" information 1299 1300 1301 Release data2006l - 2006-09-18 12:58:11 -0400 1302 1303 Paul's best-effort work on this coming weekend's Egypt time change 1304 1305 1306 Release 2006k - 2006-08-28 12:19:09 -0400 1307 1308 changes by Paul Eggert 1309 1310 1311 Release 2006j - 2006-08-21 09:56:32 -0400 1312 1313 changes by Paul Eggert 1314 1315 1316 Release code2006i - 2006-08-07 12:30:55 -0400 1317 1318 localtime.c fixes 1319 1320 Ken Pizzini's conversion script 1321 1322 1323 Release code2006h - 2006-07-24 09:19:37 -0400 1324 1325 adds public domain notices to four files 1326 1327 includes a fix for transition times being off by a second 1328 1329 adds a new recording to the "arts" file (information courtesy Colin Bowern) 1330 1331 1332 Release 2006g - 2006-05-08 17:18:09 -0400 1333 1334 northamerica changes by Paul Eggert 1335 1336 1337 Release 2006f - 2006-05-01 11:46:00 -0400 1338 1339 a missing version number problem is fixed (with thanks to Bradley 1340 White for catching the problem) 1341 1342 1343 Release 2006d - 2006-04-17 14:33:43 -0400 1344 1345 changes by Paul Eggert 1346 1347 added new items to tz-arts.htm that were found by Paul 1348 1349 1350 Release 2006c - 2006-04-03 10:09:32 -0400 1351 1352 two sets of data changes by Paul Eggert 1353 1354 a fencepost error fix in zic.c 1355 1356 changes to zic.c and the "europe" file to minimize differences 1357 between output produced by the old 32-bit zic and the new 64-bit 1358 version 1359 1360 1361 Release 2006b - 2006-02-20 10:08:18 -0500 1362 [tz32code2006b + tz64code2006b + tzdata2006b] 1363 1364 64-bit code 1365 1366 All SCCS IDs were bumped to "8.1" for this release. 1367 1368 1369 Release 2006a - 2006-01-30 08:59:31 -0500 1370 1371 changes by Paul Eggert (in particular, Indiana time zone moves) 1372 1373 an addition to the zic manual page to describe how special-case 1374 transitions are handled 1375 1376 1377 Release 2005r - 2005-12-27 09:27:13 -0500 1378 1379 Canadian changes by Paul Eggert 1380 1381 They also add "<pre>" directives to time zone data files and reflect 1382 changes to warning message logic in "zdump.c" (but with calls to 1383 "gettext" kept unbundled at the suggestion of Ken Pizzini). 1384 1385 1386 Release 2005q - 2005-12-13 09:17:09 -0500 1387 1388 Nothing earth-shaking here: 1389 1. Electronic mail addresses have been removed. 1390 2. Casts of the return value of exit have been removed. 1391 3. Casts of the argument of is.* macros have been added. 1392 4. Indentation in one section of zic.c has been fixed. 1393 5. References to dead URLs in the data files have been dealt with. 1394 1395 1396 Release 2005p - 2005-12-05 10:30:53 -0500 1397 1398 "systemv", "tz-link.htm", and "zdump.c" changes 1399 (less the casts of arguments to the is* macros) 1400 1401 1402 Release 2005o - 2005-11-28 10:55:26 -0500 1403 1404 Georgia, Cuba, Nicaragua, and Jordan changes by Paul Eggert 1405 1406 zdump.c lint fixes by Arthur David Olson 1407 1408 1409 Release 2005n - 2005-10-03 09:44:09 -0400 1410 1411 changes by Paul Eggert (both the Uruguary changes and the Kyrgyzstan 1412 et al. changes) 1413 1414 1415 Release 2005m - 2005-08-29 12:15:40 -0400 1416 1417 changes by Paul Eggert (with a small tweak to the tz-art change) 1418 1419 a declaration of an unused variable has been removed from zdump.c 1420 1421 1422 Release 2005l - 2005-08-22 12:06:39 -0400 1423 1424 changes by Paul Eggert 1425 1426 overflow/underflow checks by Arthur David Olson, minus changes to 1427 the "Theory" file about the pending addition of 64-bit data (I grow 1428 less confident of the changes being accepted with each passing day, 1429 and the changes no longer increase the data files nine-fold--there's 1430 less than a doubling in size by my local Sun's reckoning) 1431 1432 1433 Release 2005k - 2005-07-14 14:14:24 -0400 1434 1435 The "leapseconds" file has been edited to reflect the recently 1436 announced leap second at the end of 2005. 1437 1438 I've also deleted electronic mail addresses from the files as an 1439 anti-spam measure. 1440 1441 1442 Release 2005j - 2005-06-13 14:34:13 -0400 1443 1444 These reflect changes to limit the length of time zone abbreviations 1445 and the characters used in those abbreviations. 1446 1447 There are also changes to handle POSIX-style "quoted" time zone 1448 environment variables. 1449 1450 The changes were circulated on the time zone mailing list; the only 1451 change since then was the removal of a couple of minimum-length of 1452 abbreviation checks. 1453 1454 1455 Release data2005i - 2005-04-21 15:04:16 -0400 1456 1457 changes (most importantly to Nicaragua and Haiti) by Paul Eggert 1458 1459 1460 Release 2005h - 2005-04-04 11:24:47 -0400 1461 1462 changes by Paul Eggert 1463 1464 minor changes to Makefile and zdump.c to produce more useful output 1465 when doing a "make typecheck" 1466 1467 1468 Release 2005g - 2005-03-14 10:11:21 -0500 1469 1470 changes by Paul Eggert (a change to current DST rules in Uruguay and 1471 an update to a link to time zone software) 1472 1473 1474 Release 2005f - 2005-03-01 08:45:32 -0500 1475 1476 data and documentation changes by Paul Eggert 1477 1478 1479 Release 2005e - 2005-02-10 15:59:44 -0500 1480 1481 [not summarized] 1482 1483 1484 Release code2005d - 2005-01-31 09:21:47 -0500 1485 1486 make zic complain about links to links if the -v flag is used 1487 1488 have "make public" do more code checking 1489 1490 add an include to "localtime.c" for the benefit of gcc systems 1491 1492 1493 Release 2005c - 2005-01-17 18:36:29 -0500 1494 1495 get better results when mktime runs on a system where time_t is double 1496 1497 changes to the data files (most importantly to Paraguay) 1498 1499 1500 Release 2005b - 2005-01-10 09:19:54 -0500 1501 1502 Get localtime and gmtime working on systems with exotic time_t types. 1503 1504 Update the leap second commentary in the "leapseconds" file. 1505 1506 1507 Release 2005a - 2005-01-01 13:13:44 -0500 1508 1509 [not summarized] 1510 1511 1512 Release code2004i - 2004-12-14 13:42:58 -0500 1513 1514 Deal with systems where time_t is unsigned. 1515 1516 1517 Release code2004h - 2004-12-07 11:40:18 -0500 1518 1519 64-bit-time_t changes 1520 1521 1522 Release 2004g - 2004-11-02 09:06:01 -0500 1523 1524 update to Cuba (taking effect this weekend) 1525 1526 other changes by Paul Eggert 1527 1528 correction of the spelling of Oslo 1529 1530 changed versions of difftime.c and private.h 1531 1532 1533 Release code2004f - 2004-10-21 10:25:22 -0400 1534 1535 Cope with wide-ranging tm_year values. 1536 1537 1538 Release 2004e - 2004-10-11 14:47:21 -0400 1539 1540 Brazil/Argentina/Israel changes by Paul Eggert 1541 1542 changes to tz-link.htm by Paul 1543 1544 one small fix to Makefile 1545 1546 1547 Release 2004d - 2004-09-22 08:27:29 -0400 1548 1549 Avoid overflow problems when TM_YEAR_BASE is added to an integer. 1550 1551 1552 Release 2004c - 2004-08-11 12:06:26 -0400 1553 1554 asctime-related changes 1555 1556 (variants of) some of the documentation changes suggested by Paul Eggert 1557 1558 1559 Release 2004b - 2004-07-19 14:33:35 -0400 1560 1561 data changes by Paul Eggert--most importantly, updates for Argentina 1562 1563 1564 Release 2004a - 2004-05-27 12:00:47 -0400 1565 1566 changes by Paul Eggert 1567 1568 Handle DST transitions that occur at the end of a month in some 1569 years but at the start of the following month in other years. 1570 1571 Add a copy of the correspondence that's the basis for claims about 1572 DST in the Navajo Nation. 1573 1574 1575 Release 2003e - 2003-12-15 09:36:47 -0500 1576 1577 changes by Arthur David Olson (primarily code changes) 1578 1579 changes by Paul Eggert (primarily data changes) 1580 1581 minor changes to "Makefile" and "northamerica" (in the latter case, 1582 optimization of the "Toronto" rules) 1583 1584 1585 Release 2003d - 2003-10-06 09:34:44 -0400 1586 1587 changes by Paul Eggert 1588 1589 1590 Release 2003c - 2003-09-16 10:47:05 -0400 1591 1592 Fix bad returns in zic.c's inleap function. 1593 Thanks to Bradley White for catching the problem! 1594 1595 1596 Release 2003b - 2003-09-16 07:13:44 -0400 1597 1598 Add a "--version" option (and documentation) to the zic and zdump commands. 1599 1600 changes to overflow/underflow checking in zic 1601 1602 a localtime typo fix. 1603 1604 Update the leapseconds and tz-art.htm files. 1605 1606 1607 Release 2003a - 2003-03-24 09:30:54 -0500 1608 1609 changes by Paul Eggert 1610 1611 a few additions and modifications to the tz-art.htm file 1612 1613 1614 Release 2002d - 2002-10-15 13:12:42 -0400 1615 1616 changes by Paul Eggert, less the "Britain (UK)" change in iso3166.tab 1617 1618 There's also a new time zone quote in "tz-art.htm". 1619 1620 1621 Release 2002c - 2002-04-04 11:55:20 -0500 1622 1623 changes by Paul Eggert 1624 1625 Change zic.c to avoid creating symlinks to files that don't exist. 1626 1627 1628 Release 2002b - 2002-01-28 12:56:03 -0500 1629 1630 [These change notes are for Release 2002a, which was corrupted. 1631 2002b was a corrected version of 2002a.] 1632 1633 changes by Paul Eggert 1634 1635 Update the "leapseconds" file to note that there'll be no leap 1636 second at the end of June, 2002. 1637 1638 Change "zic.c" to deal with a problem in handling the "Asia/Bishkek" zone. 1639 1640 Change to "difftime.c" to avoid sizeof problems. 1641 1642 1643 Release 2001d - 2001-10-09 13:31:32 -0400 1644 1645 changes by Paul Eggert 1646 1647 1648 Release 2001c - 2001-06-05 13:59:55 -0400 1649 1650 changes by Paul Eggert and Andrew Brown 1651 1652 1653 Release 2001b - 2001-04-05 16:44:38 -0400 1654 1655 changes by Paul Eggert (modulo jnorgard's typo fix) 1656 1657 tz-art.htm has been htmlified. 1658 1659 1660 Release 2001a - 2001-03-13 12:57:44 -0500 1661 1662 changes by Paul Eggert 1663 1664 An addition to the "leapseconds" file: comments with the text of the 1665 latest IERS leap second notice. 1666 1667 Trailing white space has been removed from data file lines, and 1668 repeated spaces in "Rule Jordan" lines in the "asia" file have been 1669 converted to tabs. 1670 1671 1672 Release 2000h - 2000-12-14 15:33:38 -0500 1673 1674 changes by Paul Eggert 1675 1676 one typo fix in the "art" file 1677 1678 With providence, this is the last update of the millenium. 1679 1680 1681 Release 2000g - 2000-10-10 11:35:22 -0400 1682 1683 changes by Paul Eggert 1684 1685 correction of John Mackin's name submitted by Robert Elz 1686 1687 Garry Shandling's Daylight Saving Time joke (!?!) from the recent 1688 Emmy Awards broadcast. 1689 1690 1691 Release 2000f - 2000-08-10 09:31:58 -0400 1692 1693 changes by Paul Eggert 1694 1695 Added information in "tz-art.htm" on a Seinfeld reference to DST. 1696 1697 Error checking and messages in the "yearistype" script have been 1698 improved. 1699 1700 1701 Release 2000e - 2000-07-31 09:27:54 -0400 1702 1703 data changes by Paul Eggert 1704 1705 a change to the default value of the defined constant HAVE_STRERROR 1706 1707 the addition of a Dave Barry quote on DST to the tz-arts file 1708 1709 1710 Release 2000d - 2000-04-20 15:43:04 -0400 1711 1712 changes to the documentation and code of strftime for C99 conformance 1713 1714 a bug fix for date.c 1715 1716 These are based on (though modified from) changes by Paul Eggert. 1717 1718 1719 Release 2000c - 2000-03-04 10:31:43 -0500 1720 1721 changes by Paul Eggert 1722 1723 1724 Release 2000b - 2000-02-21 12:16:29 -0500 1725 1726 changes by Paul Eggert and Joseph Myers 1727 1728 modest tweaks to the tz-art.htm and tz-link.htm files 1729 1730 1731 Release 2000a - 2000-01-18 09:21:26 -0500 1732 1733 changes by Paul Eggert 1734 1735 The two hypertext documents have also been renamed. 1736 1737 1738 Release code1999i-data1999j - 1999-11-15 18:43:22 -0500 1739 1740 Paul Eggert's changes 1741 1742 additions to the "zic" manual page and the "Arts.htm" file 1743 1744 1745 Release code1999h-data1999i - 1999-11-08 14:55:21 -0500 1746 1747 [not summarized] 1748 1749 1750 Release data1999h - 1999-10-07 03:50:29 -0400 1751 1752 changes by Paul Eggert to "europe" (most importantly, fixing 1753 Lithuania and Estonia) 1754 1755 1756 Release 1999g - 1999-09-28 11:06:18 -0400 1757 1758 data changes by Paul Eggert (most importantly, the change for 1759 Lebanon that buys correctness for this coming Sunday) 1760 1761 The "code" file contains changes to "Makefile" and "checktab.awk" to 1762 allow better checking of time zone files before they are published. 1763 1764 1765 Release 1999f - 1999-09-23 09:48:14 -0400 1766 1767 changes by Arthur David Olson and Paul Eggert 1768 1769 1770 Release 1999e - 1999-08-17 15:20:54 -0400 1771 1772 changes circulated by Paul Eggert, although the change to handling 1773 of DST-specifying time zone names has been commented out for now 1774 (search for "XXX" in "localtime.c" for details). These files also 1775 do not make any changes to the start of DST in Brazil. 1776 1777 In addition to Paul's changes, there are updates to "Arts.htm" and 1778 cleanups of URLs. 1779 1780 1781 Release 1999d - 1999-03-30 11:31:07 -0500 1782 1783 changes by Paul Eggert 1784 1785 The Makefile's "make public" rule has also been changed to do a test 1786 compile of each individual time zone data file (which should help 1787 avoid problems such as the one we had with Nicosia). 1788 1789 1790 Release 1999c - 1999-03-25 09:47:47 -0500 1791 1792 changes by Paul Eggert, most importantly the change for Chile. 1793 1794 1795 Release 1999b - 1999-02-01 17:51:44 -0500 1796 1797 changes by Paul Eggert 1798 1799 code changes (suggested by Mani Varadarajan, mani at be.com) for 1800 correct handling of symbolic links when building using a relative directory 1801 1802 code changes to generate correct messages for failed links 1803 1804 updates to the URLs in Arts.htm 1805 1806 1807 Release 1999a - 1999-01-19 16:20:29 -0500 1808 1809 error message internationalizations and corrections in zic.c and 1810 zdump.c (as suggested by Vladimir Michl, vladimir.michl at upol.cz, 1811 to whom thanks!) 1812 1813 1814 Release code1998h-data1998i - 1998-10-01 09:56:10 -0400 1815 1816 changes for Brazil, Chile, and Germany 1817 1818 support for use of "24:00" in the input files for the time zone compiler 1819 1820 1821 Release code1998g-data1998h - 1998-09-24 10:50:28 -0400 1822 1823 changes by Paul Eggert 1824 1825 correction to a define in the "private.h" file 1826 1827 1828 Release data1998g - 1998-08-11 03:28:35 -0000 1829 [tzdata1998g.tar.gz is missing!] 1830 1831 Lithuanian change provided by mgedmin at pub.osf.it 1832 1833 Move creation of the GMT link with Etc/GMT to "etcetera" (from 1834 "backward") to ensure that the GMT file is created even where folks 1835 don't want the "backward" links (as suggested by Paul Eggert). 1836 1837 1838 Release data1998f - 1998-07-20 13:50:00 -0000 1839 [tzdata1998f.tar.gz is missing!] 1840 1841 Update the "leapseconds" file to include the newly-announced 1842 insertion at the end of 1998. 1843 1844 1845 Release code1998f - 1998-06-01 10:18:31 -0400 1846 1847 addition to localtime.c by Guy Harris 1848 1849 1850 Release 1998e - 1998-05-28 09:56:26 -0400 1851 1852 The Makefile is changed to produce zoneinfo-posix rather than 1853 zoneinfo/posix, and to produce zoneinfo-leaps rather than 1854 zoneinfo/right. 1855 1856 data changes by Paul Eggert 1857 1858 changes from Guy Harris to provide asctime_r and ctime_r 1859 1860 A usno1998 file (substantially identical to usno1997) has been added. 1861 1862 1863 Release 1998d - 1998-05-14 11:58:34 -0400 1864 1865 changes to comments (in particular, elimination of references to CIA maps). 1866 "Arts.htm", "WWW.htm", "asia", and "australasia" are the only places 1867 where changes occur. 1868 1869 1870 Release 1998c - 1998-02-28 12:32:26 -0500 1871 1872 changes by Paul Eggert (save the "French correction," on which I'll 1873 wait for the dust to settle) 1874 1875 symlink changes 1876 1877 changes and additions to Arts.htm 1878 1879 1880 Release 1998b - 1998-01-17 14:31:51 -0500 1881 1882 URL cleanups and additions 1883 1884 1885 Release 1998a - 1998-01-13 12:37:35 -0500 1886 1887 changes by Paul Eggert 1888 1889 1890 Release code1997i-data1997k - 1997-12-29 09:53:41 -0500 1891 1892 changes by Paul Eggert, with minor modifications from Arthur David 1893 Olson to make the files more browser friendly 1894 1895 1896 Release code1997h-data1997j - 1997-12-18 17:47:35 -0500 1897 1898 minor changes to put "TZif" at the start of each time zone information file 1899 1900 a rule has also been added to the Makefile so you can 1901 make zones 1902 to just recompile the zone information files (rather than doing a 1903 full "make install" with its other effects). 1904 1905 1906 Release data1997i - 1997-10-07 08:45:38 -0400 1907 1908 changes to Africa by Paul Eggert 1909 1910 1911 Release code1997g-data1997h - 1997-09-04 16:56:54 -0400 1912 1913 corrections for Uruguay (and other locations) 1914 1915 Arthur David Olson's simple-minded fix allowing mktime to both 1916 correctly handle leap seconds and correctly handle tm_sec values 1917 upon which arithmetic has been performed. 1918 1919 1920 Release code1997f-data1997g - 1997-07-19 13:15:02 -0400 1921 1922 Paul Eggert's updates 1923 1924 a small change to a function prototype; 1925 1926 "Music" has been renamed "Arts.htm", htmlified, and augmented to 1927 include information on Around the World in Eighty Days. 1928 1929 1930 Release code1997e-data1997f - 1997-05-03 18:52:34 -0400 1931 1932 fixes to zic's error handling 1933 1934 changes inspired by the item circulated on Slovenia 1935 1936 The description of Web resources has been htmlified for browsing 1937 convenience. 1938 1939 A new piece of tz-related music has been added to the "Music" file. 1940 1941 1942 Release code1997d-data1997e - 1997-03-29 12:48:52 -0500 1943 1944 Paul Eggert's latest suggestions 1945 1946 1947 Release code1997c-data1997d - 1997-03-07 20:37:54 -0500 1948 1949 changes to "zic.c" to correct performance of the "-s" option 1950 1951 a new file "usno1997" 1952 1953 1954 Release data1997c - 1997-03-04 09:58:18 -0500 1955 1956 changes in Israel 1957 1958 1959 Release 1997b - 1997-02-27 18:34:19 -0500 1960 1961 The data file incorporates the 1997 leap second. 1962 1963 The code file incorporates Arthur David Olson's take on the 1964 zic/multiprocessor/directory-creation situation. 1965 1966 1967 Release 1997a - 1997-01-21 09:11:10 -0500 1968 1969 Paul Eggert's Antarctica (and other changes) 1970 1971 Arthur David Olson finessed the "getopt" issue by checking against 1972 both -1 and EOF (regardless of POSIX, SunOS 4.1.1's manual says -1 1973 is returned while SunOS 5.5's manual says EOF is returned). 1974 1975 1976 Release code1996o-data1996n - 1996-12-27 21:42:05 -0500 1977 1978 Paul Eggert's latest changes 1979 1980 1981 Release code1996n - 1996-12-16 09:42:02 -0500 1982 1983 link snapping fix from Bruce Evans (via Garrett Wollman) 1984 1985 1986 Release data1996m - 1996-11-24 02:37:34 -0000 1987 [tzdata1996m.tar.gz is missing!] 1988 1989 Paul Eggert's batch of changes 1990 1991 1992 Release code1996m-data1996l - 1996-11-05 14:00:12 -0500 1993 1994 No functional changes here; the files have simply been changed to 1995 make more use of ISO style dates in comments. The names of the above 1996 files now include the year in full. 1997 1998 1999 Release code96l - 1996-09-08 17:12:20 -0400 2000 2001 tzcode96k was missing a couple of pieces. 2002 2003 2004 Release 96k - 1996-09-08 16:06:22 -0400 2005 2006 the latest round of changes from Paul Eggert 2007 2008 the recent Year 2000 material 2009 2010 2011 Release code96j - 1996-07-30 13:18:53 -0400 2012 2013 Set sp->typecnt as suggested by Timothy Patrick Murphy. 2014 2015 2016 Release code96i - 1996-07-27 20:11:35 -0400 2017 2018 Paul's suggested patch for strftime %V week numbers 2019 2020 2021 Release data96i - 1996-07-01 18:13:04 -0400 2022 2023 "northamerica" and "europe" changes by Paul Eggert 2024 2025 2026 Release code96h - 1996-06-05 08:02:21 -0400 2027 2028 fix for handling transitions specified in Universal Time 2029 2030 Some "public domain" notices have also been added. 2031 2032 2033 Release code96g - 1996-05-16 14:00:26 -0400 2034 2035 fix for the simultaneous-DST-and-zone-change challenge 2036 2037 2038 Release data96h - 1996-05-09 17:40:51-0400 2039 2040 changes by Paul Eggert 2041 2042 2043 Release code96f-data96g - 1996-05-03 03:09:59 -0000 2044 [tzcode96f.tar.gz + tzdata96g.tar.gz are both missing!] 2045 2046 The changes get us some of the way to fixing the problems noted in Paul 2047 Eggert's letter yesterday (in addition to a few others). The approach 2048 has been to make zic a bit smarter about figuring out what time zone 2049 abbreviations apply just after the time specified in the "UNTIL" part 2050 of a zone line. Putting the smarts in zic means avoiding having 2051 transition times show up in both "Zone" lines and "Rule" lines, which 2052 in turn avoids multiple transition time entries in time zone files. 2053 (This also makes the zic input files such as "europe" a bit shorter and 2054 should ease maintenance.) 2055 2056 2057 Release data96f - 1996-04-19 19:20:03 -0000 2058 [tzdata96f.tar.gz is missing!] 2059 2060 The only changes are to the "northamerica" file; the time zone 2061 abbreviation for Denver is corrected to MST (and MDT), and the 2062 comments for Mexico have been updated. 2063 2064 2065 Release data96e - 1996-03-19 17:37:26 -0500 2066 2067 Proposals by Paul Eggert, in particular the Portugal change that 2068 comes into play at the end of this month. 2069 2070 2071 Release data96d - 1996-03-18 20:49:39 -0500 2072 2073 [not summarized] 2074 2075 2076 Release code96e - 1996-02-29 15:43:27 -0000 2077 [tzcode96e.tar.gz is missing!] 2078 2079 internationalization changes and the fix to the documentation for strftime 2080 2081 2082 Release code96d-data96c - 1996-02-12 11:05:27 -0500 2083 2084 The "code" file simply updates Bob Kridle's electronic address. 2085 2086 The "data" file updates rules for Mexico. 2087 2088 2089 Release data96b - 1996-01-27 15:44:42 -0500 2090 2091 Kiribati change 2092 2093 2094 Release code96c - 1996-01-16 16:58:15-0500 2095 2096 leap-year streamlining and binary-search changes 2097 2098 fix to newctime.3 2099 2100 2101 Release code96b - 1996-01-10 20:42:39 -0500 2102 2103 fixes and enhancements from Paul Eggert, including code that 2104 emulates the behavior of recent versions of the SunOS "date" 2105 command. 2106 2107 2108 Release 96a - 1996-01-06 09:08:24 -0500 2109 2110 Israel updates 2111 2112 fixes to strftime.c for correct ISO 8601 week number generation, 2113 plus support for two new formats ('G' and 'g') to give ISO 8601 year 2114 numbers (which are not necessarily the same as calendar year numbers) 2115 2116 2117 Release code95i-data95m - 1995-12-21 12:46:47 -0500 2118 2119 The latest revisions from Paul Eggert are included, the usno1995 2120 file has been updated, and a new file ("WWW") covering useful URLs 2121 has been added. 2122 2123 2124 Release code95h-data95l - 1995-12-19 18:10:12 -0500 2125 2126 A simplification of a macro definition, a change to data for Sudan, 2127 and (for last minute shoppers) notes in the "Music" file on the CD 2128 "Old Man Time". 2129 2130 2131 Release code95g-data95k - 1995-10-30 10:32:47 -0500 2132 2133 (slightly reformatted) 8-bit-clean proposed patch 2134 2135 minor patch: US/Eastern -> America/New_York 2136 2137 snapshot of the USNO's latest data ("usno1995") 2138 2139 some other minor cleanups 2140 2141 2142 Release code95f-data95j - 1995-10-28 21:01:34 -0000 2143 [tzcode95f.tar.gz + tzdata95j.tar.gz are both missing!] 2144 2145 European cleanups 2146 2147 support for 64-bit time_t's 2148 2149 optimization in localtime.c 2150 2151 2152 Release code95e - 1995-10-13 13:23:57 -0400 2153 2154 the mktime change to scan from future to past when trying to find time zone 2155 offsets 2156 2157 2158 Release data95i - 1995-09-26 10:43:26 -0400 2159 2160 For Canada/Central, guess that the Sun customer's ``one week too 2161 early'' was just a approximation, and the true error is one month 2162 too early. This is consistent with the rest of Canada. 2163 2164 2165 Release data95h - 1995-09-21 11:26:48 -0400 2166 2167 latest changes from Paul Eggert 2168 2169 2170 Release code95d - 1995-09-14 11:14:45 -0400 2171 2172 the addition of a "Music" file, which documents four recorded 2173 versions of the tune "Save That Time". 2174 2175 2176 Release data95g - 1995-09-01 17:21:36 -0400 2177 2178 "yearistype" correction 2179 2180 2181 Release data95f - 1995-08-28 20:46:56 -0400 2182 2183 Paul Eggert's change to the australasia file 2184 2185 2186 Release data95e - 1995-07-08 18:02:34 -0400 2187 2188 The only change is a leap second at the end of this year. 2189 Thanks to Bradley White for forwarding news on the leap second. 2190 2191 2192 Release data95d - 1995-07-03 13:26:22 -0400 2193 2194 Paul Eggert's changes 2195 2196 2197 Release data95c - 1995-07-02 19:19:28 -0400 2198 2199 changes to "asia", "backward", "europe", and "southamerica" 2200 (read: northamericacentrics need not apply) 2201 2202 2203 Release code95c - 1995-03-13 14:00:46 -0500 2204 2205 one-line fix for sign extension problems in detzcode 2206 2207 2208 Release 95b - 1995-03-04 11:22:38 -0500 2209 2210 Minor changes in both: 2211 2212 The "code" file contains a workaround for the lack of "unistd.h" in 2213 Microsoft C++ version 7. 2214 2215 The "data" file contains a fixed "Link" for America/Shiprock. 2216 2217 2218 Release 94h - 1994-12-10 12:51:14 -0500 2219 2220 The files: 2221 2222 * incorporate the changes to "zdump" and "date" to make changes to 2223 the "TZ" environment variable permanent; 2224 2225 * incorporate the table changes by Paul Eggert; 2226 2227 * include (and document) support for universal time specifications in 2228 data files--but do not (yet) include use of this feature in the 2229 data files. 2230 2231 Think of this as "TZ Classic"--the software has been set up not to break if 2232 universal time shows up in its input, and the data has been left as is so as 2233 not to break existing implementations. 2234 2235 2236 Release data94f - 1994-08-20 12:56:09 -0400 2237 2238 (with thanks!) the latest data updates from Paul Eggert 2239 2240 2241 Release data94e - 1994-06-04 13:13:53 -0400 2242 2243 [not summarized] 2244 2245 2246 Release code94g - 1994-05-05 12:14:07 -0400 2247 2248 fix missing "optind.c" and a reference to it in the Makefile 2249 2250 2251 Release code94f - 1994-05-05 13:00:33 -0000 2252 [tzcode94f.tar.gz is missing!] 2253 2254 changes to avoid overflow in difftime, as well as changes to cope 2255 with the 52/53 challenge in strftime 2256 2257 2258 Release code94e - 1994-03-30 23:32:59 -0500 2259 2260 change for the benefit of PCTS 2261 2262 2263 Release 94d - 1994-02-24 15:42:25 -0500 2264 2265 Avoid clashes with POSIX semantics for zones such as GMT+4. 2266 2267 Some other very minor housekeeping is also present. 2268 2269 2270 Release code94c - 1994-02-10 08:52:40 -0500 2271 2272 Fix bug where mkdirs was broken unless you compile with 2273 -fwritable-strings (which is generally losing to do). 2274 2275 2276 Release 94b - 1994-02-07 10:04:33 -0500 2277 2278 work by Paul Eggert who notes: 2279 2280 I found another book of time zone histories by E W Whitman; it's not 2281 as extensive as Shanks but has a few goodies of its own. I used it 2282 to update the tables. I also fixed some more as a result of 2283 correspondence with Adam David and Peter Ilieve, and move some stray 2284 links from `europe' to `backward'. I corrected some scanning errors 2285 in usno1989. 2286 2287 As far as the code goes, I fixed zic to allow years in the range 2288 INT_MIN to INT_MAX; this fixed a few boundary conditions around 1900. 2289 And I cleaned up the zic documentation a little bit. 2290 2291 2292 Release data94a - 1994-02-03 08:58:54 -0500 2293 2294 It simply incorporates the recently announced leap second into the 2295 "leapseconds" file. 2296 2297 2298 Release 93g - 1993-11-22 17:28:27 -0500 2299 2300 Paul Eggert has provided a good deal of historic information (based 2301 on Shanks), and there are some code changes to deal with the buglets 2302 that crawled out in dealing with the new information. 2303 2304 2305 Release 93f - 1993-10-15 12:27:46 -0400 2306 2307 Paul Eggert's changes 2308 2309 2310 Release 93e - 1993-09-05 21:21:44 -0400 2311 2312 There's updated data for Israel, England, and Kwajalein; there's 2313 also an update to "zdump" to cope with Kwajalein's 24-hour jump. 2314 Thanks to Paul Eggert and Peter Ilieve for the changes. 2315 2316 2317 Release 93d - 1993-06-17 23:34:17 -0400 2318 2319 new fix and new data on Israel 2320 2321 2322 Release 93c - 1993-06-06 19:31:55 -0400 2323 2324 [not summarized] 2325 2326 2327 Release 93b - 1993-02-02 14:53:58 -0500 2328 2329 updated "leapseconds" file 2330 2331 2332 Release 93 - 1993-01-08 07:01:06 -0500 2333 2334 At kre's suggestion, the package has been split in two--a code piece 2335 (which also includes documentation) that's only of use to folks who 2336 want to recompile things and a data piece useful to anyone who can 2337 run "zic". 2338 2339 The new version has a few changes to the data files, a few 2340 portability changes, and an off-by-one fix (with thanks to 2341 Tom-Karzes at deshaw.com for providing a description and a 2342 solution). 2343 2344 2345 Release 92c - 1992-11-21 17:35:36 -0000 2346 [tz92c.tar.Z is missing!] 2347 2348 The fallout from the latest round of DST transitions. 2349 2350 There are changes for Portugal, Saskatchewan, and "Pacific-New"; 2351 there's also a change to "zic.c" that makes it portable to more systems. 2352 2353 2354 Release 92 - 1992-04-25 18:17:03 -0000 2355 [tz92.tar.Z is missing!] 2356 2357 By popular demand (well, at any rate, following a request by kre at munnari) 2358 2359 2360 The 1989 update of the time zone package featured: 2361 2362 * POSIXization (including interpretation of POSIX-style TZ environment 2363 variables, provided by Guy Harris), 2364 * ANSIfication (including versions of "mktime" and "difftime"), 2365 * SVIDulation (an "altzone" variable) 2366 * MACHination (the "gtime" function) 2367 * corrections to some time zone data (including corrections to the rules 2368 for Great Britain and New Zealand) 2369 * reference data from the United States Naval Observatory for folks who 2370 want to do additional time zones 2371 * and the 1989 data for Saudi Arabia. 2372 2373 (Since this code will be treated as "part of the implementation" in some 2374 places and as "part of the application" in others, there's no good way to 2375 name functions, such as timegm, that are not part of the proposed ANSI C 2376 standard; such functions have kept their old, underscore-free names in this 2377 update.) 2378 2379 And the "dysize" function has disappeared; it was present to allow 2380 compilation of the "date" command on old BSD systems, and a version of "date" 2381 is now provided in the package. The "date" command is not created when you 2382 "make all" since it may lack options provided by the version distributed with 2383 your operating system, or may not interact with the system in the same way 2384 the native version does. 2385 2386 Since POSIX frowns on correct leap second handling, the default behavior of 2387 the "zic" command (in the absence of a "-L" option) has been changed to omit 2388 leap second information from its output files. 2389 2390 2391 ----- 2392 Notes 2393 2394 This file contains copies of the part of each release announcement 2395 that talks about the changes in that release. The text has been 2396 adapted and reformatted for the purposes of this file. 2397 2398 Typically a release R consists of a pair of tarball files, 2399 tzcodeR.tar.gz and tzdataR.tar.gz. However, some releases (e.g., 2400 code2010a, data2012c) consist of just one or the other tarball, and a 2401 few (e.g., code2012c-data2012d) have tarballs with mixed version 2402 numbers. 2403 2404 Release time stamps are taken from the release's commit (for newer, 2405 git releases), from the newest file in the tarball (for older 2406 releases, where this info is available) or from the email announcing 2407 the release (if all else fails; these are marked with a timezone of 2408 -0000 and an "is missing!" comment). 2409 2410 Earlier versions of the code and data were not announced on the tz 2411 list and are not summarized here. 2412 2413 This file is in the public domain. 2414
Indexes created Sun Sep 28 16:09:52 GMT 2025