NEWS revision 1.15
1 News for the tz database 2 3 Release 2016b - 2016-03-12 17:30:14 -0800 4 5 Changes affecting future time stamps 6 7 New zones Europe/Astrakhan and Europe/Ulyanovsk for Astrakhan and 8 Ulyanovsk Oblasts, Russia, both of which will switch from +03 to +04 on 9 2016-03-27 at 02:00 local time. They need distinct zones since their 10 post-1970 histories disagree. New zone Asia/Barnaul for Altai Krai and 11 Altai Republic, Russia, which will switch from +06 to +07 on the same date 12 and local time. The Astrakhan change is already official; the others have 13 passed the first reading in the State Duma and are extremely likely. 14 Also, Asia/Sakhalin moves from +10 to +11 on 2016-03-27 at 02:00. 15 (Thanks to Alexander Krivenyshev for the heads-up, and to Matt Johnson 16 and Stepan Golosunov for followup.) 17 18 As a trial of a new system that needs less information to be made up, 19 the new zones use numeric time zone abbreviations like "+04" 20 instead of invented abbreviations like "ASTT". 21 22 Haiti will not observe DST in 2016. (Thanks to Jean Antoine via 23 Steffen Thorsen.) 24 25 Palestine's spring-forward transition on 2016-03-26 is at 01:00, not 00:00. 26 (Thanks to Hannah Kreitem.) Guess future transitions will be March's last 27 Saturday at 01:00, not March's last Friday at 24:00. 28 29 Changes affecting past time stamps 30 31 Europe/Chisinau observed DST during 1990, and switched from +04 to 32 +03 at 1990-05-06 02:00, instead of switching from +03 to +02. 33 (Thanks to Stepan Golosunov.) 34 35 1991 abbreviations in Europe/Samara should be SAMT/SAMST, not 36 KUYT/KUYST. (Thanks to Stepan Golosunov.) 37 38 Changes to code 39 40 tzselect's diagnostics and checking, and checktab.awk's checking, 41 have been improved. (Thanks to J William Piggott.) 42 43 tzcode now builds under MinGW. (Thanks to Ian Abbott and Esben Haabendal.) 44 45 tzselect now tests Julian-date TZ settings more accurately. 46 (Thanks to J William Piggott.) 47 48 Changes to commentary 49 50 Comments in zone tables have been improved. (Thanks to J William Piggott.) 51 52 tzselect again limits its menu comments so that menus fit on a 53 24x80 alphanumeric display. 54 55 A new web page tz-how-to.html. (Thanks to Bill Seymour.) 56 57 In the Theory file, the description of possible time zone abbreviations in 58 tzdata has been cleaned up, as the old description was unclear and 59 inconsistent. (Thanks to Alain Mouette for reporting the problem.) 60 61 62 Release 2016a - 2016-01-26 23:28:02 -0800 63 64 Changes affecting future time stamps 65 66 America/Cayman will not observe daylight saving this year after all. 67 Revert our guess that it would. (Thanks to Matt Johnson.) 68 69 Asia/Chita switches from +0800 to +0900 on 2016-03-27 at 02:00. 70 (Thanks to Alexander Krivenyshev.) 71 72 Asia/Tehran now has DST predictions for the year 2038 and later, 73 to be March 21 00:00 to September 21 00:00. This is likely better 74 than predicting no DST, albeit off by a day every now and then. 75 76 Changes affecting past and future time stamps 77 78 America/Metlakatla switched from PST all year to AKST/AKDT on 79 2015-11-01 at 02:00. (Thanks to Steffen Thorsen.) 80 81 America/Santa_Isabel has been removed, and replaced with a 82 backward compatibility link to America/Tijuana. Its contents were 83 apparently based on a misreading of Mexican legislation. 84 85 Changes affecting past time stamps 86 87 Asia/Karachi's two transition times in 2002 were off by a minute. 88 (Thanks to Matt Johnson.) 89 90 Changes affecting build procedure 91 92 An installer can now combine leap seconds with use of the backzone file, 93 e.g., with 'make PACKRATDATA=backzone REDO=posix_right zones'. 94 The old 'make posix_packrat' rule is now marked as obsolescent. 95 (Thanks to Ian Abbott for an initial implementation.) 96 97 Changes affecting documentation and commentary 98 99 A new file LICENSE makes it easier to see that the code and data 100 are mostly public-domain. (Thanks to James Knight.) The three 101 non-public-domain files now use the current (3-clause) BSD license 102 instead of older versions of that license. 103 104 tz-link.htm mentions the BDE library (thanks to Andrew Paprocki), 105 CCTZ (thanks to Tim Parenti), TimeJones.com, and has a new section 106 on editing tz source files (with a mention of Sublime zoneinfo, 107 thanks to Gilmore Davidson). 108 109 The Theory and asia files now mention the 2015 book "The Global 110 Transformation of Time, 1870-1950", and cite a couple of reviews. 111 112 The America/Chicago entry now documents the informal use of US 113 central time in Fort Pierre, South Dakota. (Thanks to Rick 114 McDermid, Matt Johnson, and Steve Jones.) 115 116 117 Release 2015g - 2015-10-01 00:39:51 -0700 118 119 Changes affecting future time stamps 120 121 Turkey's 2015 fall-back transition is scheduled for Nov. 8, not Oct. 25. 122 (Thanks to Fatih.) 123 124 Norfolk moves from +1130 to +1100 on 2015-10-04 at 02:00 local time. 125 (Thanks to Alexander Krivenyshev.) 126 127 Fiji's 2016 fall-back transition is scheduled for January 17, not 24. 128 (Thanks to Ken Rylander.) 129 130 Fort Nelson, British Columbia will not fall back on 2015-11-01. It has 131 effectively been on MST (-0700) since it advanced its clocks on 2015-03-08. 132 New zone America/Fort_Nelson. (Thanks to Matt Johnson.) 133 134 Changes affecting past time stamps 135 136 Norfolk observed DST from 1974-10-27 02:00 to 1975-03-02 02:00. 137 138 Changes affecting code 139 140 localtime no longer mishandles America/Anchorage after 2037. 141 (Thanks to Bradley White for reporting the bug.) 142 143 On hosts with signed 32-bit time_t, localtime no longer mishandles 144 Pacific/Fiji after 2038-01-16 14:00 UTC. 145 146 The localtime module allows the variables 'timezone', 'daylight', 147 and 'altzone' to be in common storage shared with other modules, 148 and declares them in case the system <time.h> does not. 149 (Problems reported by Kees Dekker.) 150 151 On platforms with tm_zone, strftime.c now assumes it is not NULL. 152 This simplifies the code and is consistent with zdump.c. 153 (Problem reported by Christos Zoulas.) 154 155 Changes affecting documentation 156 157 The tzfile man page now documents that transition times denote the 158 starts (not the ends) of the corresponding time periods. 159 (Ambiguity reported by Bill Seymour.) 160 161 162 Release 2015f - 2015-08-10 18:06:56 -0700 163 164 Changes affecting future time stamps 165 166 North Korea switches to +0830 on 2015-08-15. (Thanks to Steffen Thorsen.) 167 The abbreviation remains "KST". (Thanks to Robert Elz.) 168 169 Uruguay no longer observes DST. (Thanks to Steffen Thorsen 170 and Pablo Camargo.) 171 172 Changes affecting past and future time stamps 173 174 Moldova starts and ends DST at 00:00 UTC, not at 01:00 UTC. 175 (Thanks to Roman Tudos.) 176 177 Changes affecting data format and code 178 179 zic's '-y YEARISTYPE' option is no longer documented. The TYPE 180 field of a Rule line should now be '-'; the old values 'even', 181 'odd', 'uspres', 'nonpres', 'nonuspres' were already undocumented. 182 Although the implementation has not changed, these features do not 183 work in the default installation, they are not used in the data, 184 and they are now considered obsolescent. 185 186 zic now checks that two rules don't take effect at the same time. 187 (Thanks to Jon Skeet and Arthur David Olson.) Constraints on 188 simultaneity are now documented. 189 190 The two characters '%z' in a zone format now stand for the UTC 191 offset, e.g., '-07' for seven hours behind UTC and '+0530' for 192 five hours and thirty minutes ahead. This better supports time 193 zone abbreviations conforming to POSIX.1-2001 and later. 194 195 Changes affecting installed data files 196 197 Comments for America/Halifax and America/Glace_Bay have been improved. 198 (Thanks to Brian Inglis.) 199 200 Data entries have been simplified for Atlantic/Canary, Europe/Simferopol, 201 Europe/Sofia, and Europe/Tallinn. This yields slightly smaller 202 installed data files for Europe/Simferopol and Europe/Tallinn. 203 It does not affect timestamps. (Thanks to Howard Hinnant.) 204 205 Changes affecting code 206 207 zdump and zic no longer warn about valid time zone abbreviations 208 like '-05'. 209 210 Some Visual Studio 2013 warnings have been suppressed. 211 (Thanks to Kees Dekker.) 212 213 'date' no longer sets the time of day and its -a, -d, -n and -t 214 options have been removed. Long obsolescent, the implementation 215 of these features had porting problems. Builders no longer need 216 to configure HAVE_ADJTIME, HAVE_SETTIMEOFDAY, or HAVE_UTMPX_H. 217 (Thanks to Kees Dekker for pointing out the problem.) 218 219 Changes affecting documentation 220 221 The Theory file mentions naming issues earlier, as these seem to be 222 poorly publicized (thanks to Gilmore Davidson for reporting the problem). 223 224 tz-link.htm mentions Time Zone Database Parser (thanks to Howard Hinnant). 225 226 Mention that Herbert Samuel introduced the term "Summer Time". 227 228 229 Release 2015e - 2015-06-13 10:56:02 -0700 230 231 Changes affecting future time stamps 232 233 Morocco will suspend DST from 2015-06-14 03:00 through 2015-07-19 02:00, 234 not 06-13 and 07-18 as we had guessed. (Thanks to Milamber.) 235 236 Assume Cayman Islands will observe DST starting next year, using US rules. 237 Although it isn't guaranteed, it is the most likely. 238 239 Changes affecting data format 240 241 The file 'iso3166.tab' now uses UTF-8, so that its entries can better 242 spell the names of land Islands, Cte d'Ivoire, and Runion. 243 244 Changes affecting code 245 246 When displaying data, tzselect converts it to the current locale's 247 encoding if the iconv command works. (Problem reported by random832.) 248 249 tzselect no longer mishandles Dominica, fixing a bug introduced 250 in Release 2014f. (Problem reported by Owen Leibman.) 251 252 zic -l no longer fails when compiled with -DTZDEFAULT=\"/etc/localtime\". 253 This fixes a bug introduced in Release 2014f. 254 (Problem reported by Leonardo Chiquitto.) 255 256 257 Release 2015d - 2015-04-24 08:09:46 -0700 258 259 Changes affecting future time stamps 260 261 Egypt will not observe DST in 2015 and will consider canceling it 262 permanently. For now, assume no DST indefinitely. 263 (Thanks to Ahmed Nazmy and Tim Parenti.) 264 265 Changes affecting past time stamps 266 267 America/Whitehorse switched from UTC-9 to UTC-8 on 1967-05-28, not 268 1966-07-01. Also, Yukon's time zone history is documented better. 269 (Thanks to Brian Inglis and Dennis Ferguson.) 270 271 Change affecting past and future time zone abbreviations 272 273 The abbreviations for Hawaii-Aleutian standard and daylight times 274 have been changed from HAST/HADT to HST/HDT, as per US Government 275 Printing Office style. This affects only America/Adak since 1983, 276 as America/Honolulu was already using the new style. 277 278 Changes affecting code 279 280 zic has some minor performance improvements. 281 282 283 Release 2015c - 2015-04-11 08:55:55 -0700 284 285 Changes affecting future time stamps 286 287 Egypt's spring-forward transition is at 24:00 on April's last Thursday, 288 not 00:00 on April's last Friday. 2015's transition will therefore be on 289 Thursday, April 30 at 24:00, not Friday, April 24 at 00:00. Similar fixes 290 apply to 2026, 2037, 2043, etc. (Thanks to Steffen Thorsen.) 291 292 Changes affecting past time stamps 293 294 The following changes affect some pre-1991 Chile-related time stamps 295 in America/Santiago, Antarctica/Palmer, and Pacific/Easter. 296 297 The 1910 transition was January 10, not January 1. 298 299 The 1918 transition was September 10, not September 1. 300 301 The UTC-4 time observed from 1932 to 1942 is now considered to be 302 standard time, not year-round DST. 303 304 Santiago observed DST (UTC-3) from 1946-07-15 through 1946-08-31, 305 then reverted to standard time, then switched its time zone to 306 UTC-5 on 1947-04-01. 307 308 Assume transitions before 1968 were at 00:00, since we have no data 309 saying otherwise. 310 311 The spring 1988 transition was 1988-10-09, not 1988-10-02. 312 The fall 1990 transition was 1990-03-11, not 1990-03-18. 313 314 Assume no UTC offset change for Pacific/Easter on 1890-01-01, 315 and omit all transitions on Pacific/Easter from 1942 through 1946 316 since we have no data suggesting that they existed. 317 318 One more zone has been turned into a link, as it differed 319 from an existing zone only for older time stamps. As usual, 320 this change affects UTC offsets in pre-1970 time stamps only. 321 The zone's old contents have been moved to the 'backzone' file. 322 The affected zone is America/Montreal. 323 324 Changes affecting commentary 325 326 Mention the TZUpdater tool. 327 328 Mention "The Time Now". (Thanks to Brandon Ramsey.) 329 330 331 Release 2015b - 2015-03-19 23:28:11 -0700 332 333 Changes affecting future time stamps 334 335 Mongolia will start observing DST again this year, from the last 336 Saturday in March at 02:00 to the last Saturday in September at 00:00. 337 (Thanks to Ganbold Tsagaankhuu.) 338 339 Palestine will start DST on March 28, not March 27. Also, 340 correct the fall 2014 transition from September 26 to October 24. 341 Adjust future predictions accordingly. (Thanks to Steffen Thorsen.) 342 343 Changes affecting past time stamps 344 345 The 1982 zone shift in Pacific/Easter has been corrected, fixing a 2015a 346 regression. (Thanks to Stuart Bishop for reporting the problem.) 347 348 Some more zones have been turned into links, when they differed 349 from existing zones only for older time stamps. As usual, 350 these changes affect UTC offsets in pre-1970 time stamps only. 351 Their old contents have been moved to the 'backzone' file. 352 The affected zones are: America/Antigua, America/Cayman, 353 Pacific/Midway, and Pacific/Saipan. 354 355 Changes affecting time zone abbreviations 356 357 Correct the 1992-2010 DST abbreviation in Volgograd from "MSK" to "MSD". 358 (Thanks to Hank W.) 359 360 Changes affecting code 361 362 Fix integer overflow bug in reference 'mktime' implementation. 363 (Problem reported by Jrg Richter.) 364 365 Allow -Dtime_tz=time_t compilations, and allow -Dtime_tz=... libraries 366 to be used in the same executable as standard-library time_t functions. 367 (Problems reported by Bradley White.) 368 369 Changes affecting commentary 370 371 Cite the recent Mexican decree changing Quintana Roo's time zone. 372 (Thanks to Carlos Ral Perasso.) 373 374 Likewise for the recent Chilean decree. (Thanks to Eduardo Romero Urra.) 375 376 Update info about Mars time. 377 378 379 Release 2015a - 2015-01-29 22:35:20 -0800 380 381 Changes affecting future time stamps 382 383 The Mexican state of Quintana Roo, represented by America/Cancun, 384 will shift from Central Time with DST to Eastern Time without DST 385 on 2015-02-01 at 02:00. (Thanks to Steffen Thorsen and Gwillim Law.) 386 387 Chile will not change clocks in April or thereafter; its new standard time 388 will be its old daylight saving time. This affects America/Santiago, 389 Pacific/Easter, and Antarctica/Palmer. (Thanks to Juan Correa.) 390 391 New leap second 2015-06-30 23:59:60 UTC as per IERS Bulletin C 49. 392 (Thanks to Tim Parenti.) 393 394 Changes affecting past time stamps 395 396 Iceland observed DST in 1919 and 1921, and its 1939 fallback 397 transition was Oct. 29, not Nov. 29. Remove incorrect data from 398 Shanks about time in Iceland between 1837 and 1908. 399 400 Some more zones have been turned into links, when they differed 401 from existing zones only for older time stamps. As usual, 402 these changes affect UTC offsets in pre-1970 time stamps only. 403 Their old contents have been moved to the 'backzone' file. 404 The affected zones are: Asia/Aden, Asia/Bahrain, Asia/Kuwait, 405 and Asia/Muscat. 406 407 Changes affecting code 408 409 tzalloc now scrubs time zone abbreviations compatibly with the way 410 that tzset always has, by replacing invalid bytes with '_' and by 411 shortening too-long abbreviations. 412 413 tzselect ports to POSIX awk implementations, no longer mishandles 414 POSIX TZ settings when GNU awk is used, and reports POSIX TZ 415 settings to the user. (Thanks to Stefan Kuhn.) 416 417 Changes affecting build procedure 418 419 'make check' now checks for links to links in the data. 420 One such link (for Africa/Asmera) has been fixed. 421 (Thanks to Stephen Colebourne for pointing out the problem.) 422 423 Changes affecting commentary 424 425 The leapseconds file commentary now mentions the expiration date. 426 (Problem reported by Martin Burnicki.) 427 428 Update Mexican Library of Congress URL. 429 430 431 Release 2014j - 2014-11-10 17:37:11 -0800 432 433 Changes affecting current and future time stamps 434 435 Turks & Caicos' switch from US eastern time to UTC-4 year-round 436 did not occur on 2014-11-02 at 02:00. It's currently scheduled 437 for 2015-11-01 at 02:00. (Thanks to Chris Walton.) 438 439 Changes affecting past time stamps 440 441 Many pre-1989 time stamps have been corrected for Asia/Seoul and 442 Asia/Pyongyang, based on sources for the Korean-language Wikipedia 443 entry for time in Korea. (Thanks to Sanghyuk Jung.) Also, no 444 longer guess that Pyongyang mimicked Seoul time after World War II, 445 as this is politically implausible. 446 447 Some more zones have been turned into links, when they differed 448 from existing zones only for older time stamps. As usual, 449 these changes affect UTC offsets in pre-1970 time stamps only. 450 Their old contents have been moved to the 'backzone' file. 451 The affected zones are: Africa/Addis_Ababa, Africa/Asmara, 452 Africa/Dar_es_Salaam, Africa/Djibouti, Africa/Kampala, 453 Africa/Mogadishu, Indian/Antananarivo, Indian/Comoro, and 454 Indian/Mayotte. 455 456 Changes affecting commentary 457 458 The commentary is less enthusiastic about Shanks as a source, 459 and is more careful to distinguish UT from UTC. 460 461 462 Release 2014i - 2014-10-21 22:04:57 -0700 463 464 Changes affecting future time stamps 465 466 Pacific/Fiji will observe DST from 2014-11-02 02:00 to 2015-01-18 03:00. 467 (Thanks to Ken Rylander for the heads-up.) Guess that future 468 years will use a similar pattern. 469 470 A new Zone Pacific/Bougainville, for the part of Papua New Guinea 471 that plans to switch from UTC+10 to UTC+11 on 2014-12-28 at 02:00. 472 (Thanks to Kiley Walbom for the heads-up.) 473 474 Changes affecting time zone abbreviations 475 476 Since Belarus is not changing its clocks even though Moscow is, 477 the time zone abbreviation in Europe/Minsk is changing from FET 478 to its more-traditional value MSK on 2014-10-26 at 01:00. 479 (Thanks to Alexander Bokovoy for the heads-up about Belarus.) 480 481 The new abbreviation IDT stands for the pre-1976 use of UT+8 in 482 Indochina, to distinguish it better from ICT (UT+7). 483 484 Changes affecting past time stamps 485 486 Many time stamps have been corrected for Asia/Ho_Chi_Minh before 1976 487 (thanks to Trn Ngc Qun for an indirect pointer to Trn Tin Bnh's 488 authoritative book). Asia/Ho_Chi_Minh has been added to 489 zone1970.tab, to give tzselect users in Vietnam two choices, 490 since north and south Vietnam disagreed after our 1970 cutoff. 491 492 Asia/Phnom_Penh and Asia/Vientiane have been turned into links, as 493 they differed from existing zones only for older time stamps. As 494 usual, these changes affect pre-1970 time stamps only. Their old 495 contents have been moved to the 'backzone' file. 496 497 Changes affecting code 498 499 The time-related library functions now set errno on failure, and 500 some crashes in the new tzalloc-related library functions have 501 been fixed. (Thanks to Christos Zoulas for reporting most of 502 these problems and for suggesting fixes.) 503 504 If USG_COMPAT is defined and the requested time stamp is standard time, 505 the tz library's localtime and mktime functions now set the extern 506 variable timezone to a value appropriate for that time stamp; and 507 similarly for ALTZONE, daylight saving time, and the altzone variable. 508 This change is a companion to the tzname change in 2014h, and is 509 designed to make timezone and altzone more compatible with tzname. 510 511 The tz library's functions now set errno to EOVERFLOW if they fail 512 because the result cannot be represented. ctime and ctime_r now 513 return NULL and set errno when a time stamp is out of range, rather 514 than having undefined behavior. 515 516 Some bugs associated with the new 2014g functions have been fixed. 517 This includes a bug that largely incapacitated the new functions 518 time2posix_z and posix2time_z. (Thanks to Christos Zoulas.) 519 It also includes some uses of uninitialized variables after tzalloc. 520 The new code uses the standard type 'ssize_t', which the Makefile 521 now gives porting advice about. 522 523 Changes affecting commentary 524 525 Updated URLs for NRC Canada (thanks to Matt Johnson and Brian Inglis). 526 527 528 Release 2014h - 2014-09-25 18:59:03 -0700 529 530 Changes affecting past time stamps 531 532 America/Jamaica's 1974 spring-forward transition was Jan. 6, not Apr. 28. 533 534 Shanks says Asia/Novokuznetsk switched from LMT (not "NMT") on 1924-05-01, 535 not 1920-01-06. The old entry was based on a misinterpretation of Shanks. 536 537 Some more zones have been turned into links, when they differed 538 from existing zones only for older time stamps. As usual, 539 these changes affect UTC offsets in pre-1970 time stamps only. 540 Their old contents have been moved to the 'backzone' file. 541 The affected zones are: Africa/Blantyre, Africa/Bujumbura, 542 Africa/Gaborone, Africa/Harare, Africa/Kigali, Africa/Lubumbashi, 543 Africa/Lusaka, Africa/Maseru, and Africa/Mbabane. 544 545 Changes affecting code 546 547 zdump -V and -v now output gmtoff= values on all platforms, 548 not merely on platforms defining TM_GMTOFF. 549 550 The tz library's localtime and mktime functions now set tzname to a value 551 appropriate for the requested time stamp, and zdump now uses this 552 on platforms not defining TM_ZONE, fixing a 2014g regression. 553 (Thanks to Tim Parenti for reporting the problem.) 554 555 The tz library no longer sets tzname if localtime or mktime fails. 556 557 zdump -c no longer mishandles transitions near year boundaries. 558 (Thanks to Tim Parenti for reporting the problem.) 559 560 An access to uninitalized data has been fixed. 561 (Thanks to Jrg Richter for reporting the problem.) 562 563 When THREAD_SAFE is defined, the code ports to the C11 memory model. 564 A memory leak has been fixed if ALL_STATE and THREAD_SAFE are defined 565 and two threads race to initialize data used by gmtime-like functions. 566 (Thanks to Andy Heninger for reporting the problems.) 567 568 Changes affecting build procedure 569 570 'make check' now checks better for properly-sorted data. 571 572 Changes affecting documentation and commentary 573 574 zdump's gmtoff=N output is now documented, and its isdst=D output 575 is now documented to possibly output D values other than 0 or 1. 576 577 zdump -c's treatment of years is now documented to use the 578 Gregorian calendar and Universal Time without leap seconds, 579 and its behavior at cutoff boundaries is now documented better. 580 (Thanks to Arthur David Olson and Tim Parenti for reporting the problems.) 581 582 Programs are now documented to use the proleptic Gregorian calendar. 583 (Thanks to Alan Barrett for the suggestion.) 584 585 Fractional-second GMT offsets have been documented for civil time 586 in 19th-century Chennai, Jakarta, and New York. 587 588 589 Release 2014g - 2014-08-28 12:31:23 -0700 590 591 Changes affecting future time stamps 592 593 Turks & Caicos is switching from US eastern time to UTC-4 year-round, 594 modeled as a switch from EST/EDT to AST on 2014-11-02 at 02:00. 595 [As noted in 2014j, this switch was later delayed.] 596 597 Changes affecting past time stamps 598 599 Time in Russia or the USSR before 1926 or so has been corrected by 600 a few seconds in the following zones: Asia/Irkutsk, 601 Asia/Krasnoyarsk, Asia/Omsk, Asia/Samarkand, Asia/Tbilisi, 602 Asia/Vladivostok, Asia/Yakutsk, Europe/Riga, Europe/Samara. For 603 Asia/Yekaterinburg the correction is a few minutes. (Thanks to 604 Vladimir Karpinsky.) 605 606 The Portuguese decree of 1911-05-26 took effect on 1912-01-01. 607 This affects 1911 time stamps in Africa/Bissau, Africa/Luanda, 608 Atlantic/Azores, and Atlantic/Madeira. Also, Lisbon's pre-1912 609 GMT offset was -0:36:45 (rounded from -0:36:44.68), not -0:36:32. 610 (Thanks to Stephen Colebourne for pointing to the decree.) 611 612 Asia/Dhaka ended DST on 2009-12-31 at 24:00, not 23:59. 613 614 A new file 'backzone' contains data which may appeal to 615 connoisseurs of old time stamps, although it is out of scope for 616 the tz database, is often poorly sourced, and contains some data 617 that is known to be incorrect. The new file is not recommended 618 for ordinary use and its entries are not installed by default. 619 (Thanks to Lester Caine for the high-quality Jersey, Guernsey, and 620 Isle of Man entries.) 621 622 Some more zones have been turned into links, when they differed 623 from existing zones only for older time stamps. As usual, 624 these changes affect UTC offsets in pre-1970 time stamps only. 625 Their old contents have been moved to the 'backzone' file. 626 The affected zones are: Africa/Bangui, Africa/Brazzaville, 627 Africa/Douala, Africa/Kinshasa, Africa/Libreville, Africa/Luanda, 628 Africa/Malabo, Africa/Niamey, and Africa/Porto-Novo. 629 630 Changes affecting code 631 632 Unless NETBSD_INSPIRED is defined to 0, the tz library now 633 supplies functions for creating and using objects that represent 634 time zones. The new functions are tzalloc, tzfree, localtime_rz, 635 mktime_z, and (if STD_INSPIRED is also defined) posix2time_z and 636 time2posix_z. They are intended for performance: for example, 637 localtime_rz (unlike localtime_r) is trivially thread-safe without 638 locking. (Thanks to Christos Zoulas for proposing NetBSD-inspired 639 functions, and to Alan Barrett and Jonathan Lennox for helping to 640 debug the change.) 641 642 zdump now builds with the tz library unless USE_LTZ is defined to 0, 643 This lets zdump use tz features even if the system library lacks them. 644 To build zdump with the system library, use 'make CFLAGS=-DUSE_LTZ=0 645 TZDOBJS=zdump.o CHECK_TIME_T_ALTERNATIVES='. 646 647 zdump now uses localtime_rz if available, as it's significantly faster, 648 and it can help zdump better diagnose invalid time zone names. 649 Define HAVE_LOCALTIME_RZ to 0 to suppress this. HAVE_LOCALTIME_RZ 650 defaults to 1 if NETBSD_INSPIRED && USE_LTZ. When localtime_rz is 651 not available, zdump now uses localtime_r and tzset if available, 652 as this is a bit cleaner and faster than plain localtime. Compile 653 with -DHAVE_LOCALTIME_R=0 and/or -DHAVE_TZSET=0 if your system 654 lacks these two functions. 655 656 If THREAD_SAFE is defined to 1, the tz library is now thread-safe. 657 Although not needed for tz's own applications, which are single-threaded, 658 this supports POSIX better if the tz library is used in multithreaded apps. 659 660 Some crashes have been fixed when zdump or the tz library is given 661 invalid or outlandish input. 662 663 The tz library no longer mishandles leap seconds on platforms with 664 unsigned time_t in time zones that lack ordinary transitions after 1970. 665 666 The tz code now attempts to infer TM_GMTOFF and TM_ZONE if not 667 already defined, to make it easier to configure on common platforms. 668 Define NO_TM_GMTOFF and NO_TM_ZONE to suppress this. 669 670 Unless the new macro UNINIT_TRAP is defined to 1, the tz code now 671 assumes that reading uninitialized memory yields garbage values 672 but does not cause other problems such as traps. 673 674 If TM_GMTOFF is defined and UNINIT_TRAP is 0, mktime is now 675 more likely to guess right for ambiguous time stamps near 676 transitions where tm_isdst does not change. 677 678 If HAVE_STRFTIME_L is defined to 1, the tz library now defines 679 strftime_l for compatibility with recent versions of POSIX. 680 Only the C locale is supported, though. HAVE_STRFTIME_L defaults 681 to 1 on recent POSIX versions, and to 0 otherwise. 682 683 tzselect -c now uses a hybrid distance measure that works better 684 in Africa. (Thanks to Alan Barrett for noting the problem.) 685 686 The C source code now ports to NetBSD when GCC_DEBUG_FLAGS is used, 687 or when time_tz is defined. 688 689 When HAVE_UTMPX_H is set the 'date' command now builds on systems 690 whose <utmpx.h> file does not define WTMPX_FILE, and when setting 691 the date it updates the wtmpx file if _PATH_WTMPX is defined. 692 This affects GNU/Linux and similar systems. 693 694 For easier maintenance later, some C code has been simplified, 695 some lint has been removed, and the code has been tweaked so that 696 plain 'make' is more likely to work. 697 698 The C type 'bool' is now used for boolean values, instead of 'int'. 699 700 The long-obsolete LOCALE_HOME code has been removed. 701 702 The long-obsolete 'gtime' function has been removed. 703 704 Changes affecting build procedure 705 706 'zdump' no longer links in ialloc.o, as it's not needed. 707 708 'make check_time_t_alternatives' no longer assumes GNU diff. 709 710 Changes affecting distribution tarballs 711 712 The files checktab.awk and zoneinfo2tdf.pl are now distributed in 713 the tzdata tarball instead of the tzcode tarball, since they help 714 maintain the data. The NEWS and Theory files are now also 715 distributed in the tzdata tarball, as they're relevant for data. 716 (Thanks to Alan Barrett for pointing this out.) Also, the 717 leapseconds.awk file is no longer distributed in the tzcode 718 tarball, since it belongs in the tzdata tarball (where 2014f 719 inadvertently also distributed it). 720 721 Changes affecting documentation and commentary 722 723 A new file CONTRIBUTING is distributed. (Thanks to Tim Parenti for 724 suggesting a CONTRIBUTING file, and to Tony Finch and Walter Harms 725 for debugging it.) 726 727 The man pages have been updated to use function prototypes, 728 to document thread-safe variants like localtime_r, and to document 729 the NetBSD-inspired functions tzalloc, tzfree, localtime_rz, and 730 mktime_z. 731 732 The fields in Link lines have been renamed to be more descriptive 733 and more like the parameters of 'ln'. LINK-FROM has become TARGET, 734 and LINK-TO has become LINK-NAME. 735 736 tz-link.htm mentions the IETF's tzdist working group; Windows 737 Runtime etc. (thanks to Matt Johnson); and HP-UX's tztab. 738 739 Some broken URLs have been fixed in the commentary. (Thanks to 740 Lester Caine.) 741 742 Commentary about Philippines DST has been updated, and commentary 743 on pre-1970 time in India has been added. 744 745 746 Release 2014f - 2014-08-05 17:42:36 -0700 747 748 Changes affecting future time stamps 749 750 Russia will subtract an hour from most of its time zones on 2014-10-26 751 at 02:00 local time. (Thanks to Alexander Krivenyshev.) 752 There are a few exceptions: Magadan Oblast (Asia/Magadan) and Zabaykalsky 753 Krai are subtracting two hours; conversely, Chukotka Autonomous Okrug 754 (Asia/Anadyr), Kamchatka Krai (Asia/Kamchatka), Kemerovo Oblast 755 (Asia/Novokuznetsk), and the Samara Oblast and the Udmurt Republic 756 (Europe/Samara) are not changing their clocks. The changed zones are 757 Europe/Kaliningrad, Europe/Moscow, Europe/Simferopol, Europe/Volgograd, 758 Asia/Yekaterinburg, Asia/Omsk, Asia/Novosibirsk, Asia/Krasnoyarsk, 759 Asia/Irkutsk, Asia/Yakutsk, Asia/Vladivostok, Asia/Khandyga, 760 Asia/Sakhalin, and Asia/Ust-Nera; Asia/Magadan will have two hours 761 subtracted; and Asia/Novokuznetsk's time zone abbreviation is affected, 762 but not its UTC offset. Two zones are added: Asia/Chita (split 763 from Asia/Yakutsk, and also with two hours subtracted) and 764 Asia/Srednekolymsk (split from Asia/Magadan, but with only one hour 765 subtracted). (Thanks to Tim Parenti for much of the above.) 766 767 Changes affecting time zone abbreviations 768 769 Australian eastern time zone abbreviations are now AEST/AEDT not EST, 770 and similarly for the other Australian zones. That is, for eastern 771 standard and daylight saving time the abbreviations are AEST and AEDT 772 instead of the former EST for both; similarly, ACST/ACDT, ACWST/ACWDT, 773 and AWST/AWDT are now used instead of the former CST, CWST, and WST. 774 This change does not affect UTC offsets, only time zone abbreviations. 775 (Thanks to Rich Tibbett and many others.) 776 777 Asia/Novokuznetsk shifts from NOVT to KRAT (remaining on UTC+7) 778 effective 2014-10-26 at 02:00 local time. 779 780 The time zone abbreviation for Xinjiang Time (observed in rmqi) 781 has been changed from URUT to XJT. (Thanks to Luther Ma.) 782 783 Prefer MSK/MSD for Moscow time in Russia, even in other cities. 784 Similarly, prefer EET/EEST for eastern European time in Russia. 785 786 Change time zone abbreviations in (western) Samoa to use "ST" and 787 "DT" suffixes, as this is more likely to match common practice. 788 Prefix "W" to (western) Samoa time when its standard-time offset 789 disagrees with that of American Samoa. 790 791 America/Metlakatla now uses PST, not MeST, to abbreviate its time zone. 792 793 Time zone abbreviations have been updated for Japan's two time 794 zones used 1896-1937. JWST now stands for Western Standard 795 Time, and JCST for Central Standard Time (formerly this was CJT). 796 These abbreviations are now used for time in Korea, Taiwan, 797 and Sakhalin while controlled by Japan. 798 799 Changes affecting past time stamps 800 801 China's five zones have been simplified to two, since the post-1970 802 differences in the other three seem to have been imaginary. The 803 zones Asia/Harbin, Asia/Chongqing, and Asia/Kashgar have been 804 removed; backwards-compatibility links still work, albeit with 805 different behaviors for time stamps before May 1980. Asia/Urumqi's 806 1980 transition to UTC+8 has been removed, so that it is now at 807 UTC+6 and not UTC+8. (Thanks to Luther Ma and to Alois Treindl; 808 Treindl sent helpful translations of two papers by Guo Qingsheng.) 809 810 Some zones have been turned into links, when they differed from existing 811 zones only for older UTC offsets where data entries were likely invented. 812 These changes affect UTC offsets in pre-1970 time stamps only. This is 813 similar to the change in release 2013e, except this time for western 814 Africa. The affected zones are: Africa/Bamako, Africa/Banjul, 815 Africa/Conakry, Africa/Dakar, Africa/Freetown, Africa/Lome, 816 Africa/Nouakchott, Africa/Ouagadougou, Africa/Sao_Tome, and 817 Atlantic/St_Helena. This also affects the backwards-compatibility 818 link Africa/Timbuktu. (Thanks to Alan Barrett, Stephen Colebourne, 819 Tim Parenti, and David Patte for reporting problems in earlier 820 versions of this change.) 821 822 Asia/Shanghai's pre-standard-time UT offset has been changed from 823 8:05:57 to 8:05:43, the location of Xujiahui Observatory. Its 824 transition to standard time has been changed from 1928 to 1901. 825 826 Asia/Taipei switched to JWST on 1896-01-01, then to JST on 1937-10-01, 827 then to CST on 1945-09-21 at 01:00, and did not observe DST in 1945. 828 In 1946 it observed DST from 05-15 through 09-30; in 1947 829 from 04-15 through 10-31; and in 1979 from 07-01 through 09-30. 830 (Thanks to Yu-Cheng Chuang.) 831 832 Asia/Riyadh's transition to standard time is now 1947-03-14, not 1950. 833 834 Europe/Helsinki's 1942 fall-back transition was 10-04 at 01:00, not 835 10-03 at 00:00. (Thanks to Konstantin Hyppnen.) 836 837 Pacific/Pago_Pago has been changed from UTC-11:30 to UTC-11 for the period 838 from 1911 to 1950. 839 840 Pacific/Chatham has been changed to New Zealand standard time plus 841 45 minutes for the period before 1957, reflecting a 1956 remark in 842 the New Zealand parliament. 843 844 Europe/Budapest has several pre-1946 corrections: in 1918 the transition 845 out of DST was on 09-16, not 09-29; in 1919 it was on 11-24, not 09-15; in 846 1945 it was on 11-01, not 11-03; in 1941 the transition to DST was 04-08 847 not 04-06 at 02:00; and there was no DST in 1920. 848 849 Africa/Accra is now assumed to have observed DST from 1920 through 1935. 850 851 Time in Russia before 1927 or so has been corrected by a few seconds in 852 the following zones: Europe/Moscow, Asia/Irkutsk, Asia/Tbilisi, 853 Asia/Tashkent, Asia/Vladivostok, Asia/Yekaterinburg, Europe/Helsinki, and 854 Europe/Riga. Also, Moscow's location has been changed to its Kilometer 0 855 point. (Thanks to Vladimir Karpinsky for the Moscow changes.) 856 857 Changes affecting data format 858 859 A new file 'zone1970.tab' supersedes 'zone.tab' in the installed data. 860 The new file's extended format allows multiple country codes per zone. 861 The older file is still installed but is deprecated; its format is 862 not changing and it will still be distributed for a while, but new 863 applications should use the new file. 864 865 The new file format simplifies maintenance of obscure locations. 866 To test this, it adds coverage for the Crozet Islands and the 867 Scattered Islands. (Thanks to Tobias Conradi and Antoine Leca.) 868 869 The file 'iso3166.tab' is planned to switch from ASCII to UTF-8. 870 It is still ASCII now, but commentary about the switch has been added. 871 The new file 'zone1970.tab' already uses UTF-8. 872 873 Changes affecting code 874 875 'localtime', 'mktime', etc. now use much less stack space if ALL_STATE 876 is defined. (Thanks to Elliott Hughes for reporting the problem.) 877 878 'zic' no longer mishandles input when ignoring case in locales that 879 are not compatible with English, e.g., unibyte Turkish locales when 880 compiled with HAVE_GETTEXT. 881 882 Error diagnostics of 'zic' and 'yearistype' have been reworded so that 883 they no longer use ASCII '-' as if it were a dash. 884 885 'zic' now rejects output file names that contain '.' or '..' components. 886 (Thanks to Tim Parenti for reporting the problem.) 887 888 'zic -v' now warns about output file names that do not follow 889 POSIX rules, or that contain a digit or '.'. (Thanks to Arthur 890 David Olson for starting the ball rolling on this.) 891 892 Some lint has been removed when using GCC_DEBUG_FLAGS with GCC 4.9.0. 893 894 Changes affecting build procedure 895 896 'zic' no longer links in localtime.o and asctime.o, as they're not needed. 897 (Thanks to John Cochran.) 898 899 Changes affecting documentation and commentary 900 901 The 'Theory' file documents legacy names, the longstanding 902 exceptions to the POSIX-inspired file name rules. 903 904 The 'zic' documentation clarifies the role of time types when 905 interpreting dates. (Thanks to Arthur David Olson.) 906 907 Documentation and commentary now prefer UTF-8 to US-ASCII, 908 allowing the use of proper accents in foreign words and names. 909 Code and data have not changed because of this. (Thanks to 910 Garrett Wollman, Ian Abbott, and Guy Harris for helping to debug 911 this.) 912 913 Non-HTML documentation and commentary now use plain-text URLs instead of 914 HTML insertions, and are more consistent about bracketing URLs when they 915 are not already surrounded by white space. (Thanks to suggestions by 916 Steffen Nurpmeso.) 917 918 There is new commentary about Xujiahui Observatory, the five time-zone 919 project in China from 1918 to 1949, timekeeping in Japanese-occupied 920 Shanghai, and Tibet Time in the 1950s. The sharp-eyed can spot the 921 warlord Jin Shuren in the data. 922 923 Commentary about the coverage of each Russian zone has been standardized. 924 (Thanks to Tim Parenti). 925 926 There is new commentary about contemporary timekeeping in Ethiopia. 927 928 Obsolete comments about a 2007 proposal for DST in Kuwait has been removed. 929 930 There is new commentary about time in Poland in 1919. 931 932 Proper credit has been given to DST inventor George Vernon Hudson. 933 934 Commentary about time in Metlakatla, AK and Resolute, NU has been 935 improved, with a new source for the former. 936 937 In zone.tab, Pacific/Easter no longer mentions Salas y Gmez, as it 938 is uninhabited. 939 940 Commentary about permanent Antarctic bases has been updated. 941 942 Several typos have been corrected. (Thanks to Tim Parenti for 943 contributing some of these fixes.) 944 945 tz-link.htm now mentions the JavaScript libraries Moment Timezone, 946 TimezoneJS.Date, Walltime-js, and Timezone. (Thanks to a heads-up 947 from Matt Johnson.) Also, it mentions the Go 'latlong' package. 948 (Thanks to a heads-up from Dirkjan Ochtman.) 949 950 The files usno1988, usno1989, usno1989a, usno1995, usno1997, and usno1998 951 have been removed. These obsolescent US Naval Observatory entries were no 952 longer helpful for maintenance. (Thanks to Tim Parenti for the suggestion.) 953 954 955 Release 2014e - 2014-06-12 21:53:52 -0700 956 957 Changes affecting near-future time stamps 958 959 Egypt's 2014 Ramadan-based transitions are June 26 and July 31 at 24:00. 960 (Thanks to Imed Chihi.) Guess that from 2015 on Egypt will temporarily 961 switch to standard time at 24:00 the last Thursday before Ramadan, and 962 back to DST at 00:00 the first Friday after Ramadan. 963 964 Similarly, Morocco's are June 28 at 03:00 and August 2 at 02:00. (Thanks 965 to Milamber Space Network.) Guess that from 2015 on Morocco will 966 temporarily switch to standard time at 03:00 the last Saturday before 967 Ramadan, and back to DST at 02:00 the first Saturday after Ramadan. 968 969 Changes affecting past time stamps 970 971 The abbreviation "MSM" (Moscow Midsummer Time) is now used instead of 972 "MSD" for Moscow's double daylight time in summer 1921. Also, a typo 973 "VLASST" has been repaired to be "VLAST" for Vladivostok summer time 974 in 1991. (Thanks to Hank W. for reporting the problems.) 975 976 Changes affecting commentary 977 978 tz-link.htm now cites RFC 7265 for jCal, mentions PTP and the 979 draft CalDAV extension, updates URLs for TSP, TZInfo, IATA, and 980 removes stale pointers to World Time Explorer and WORLDTIME. 981 982 983 Release 2014d - 2014-05-27 21:34:40 -0700 984 985 Changes affecting code 986 987 zic no longer generates files containing time stamps before the Big Bang. 988 This works around GNOME bug 730332 989 <https://bugzilla.gnome.org/show_bug.cgi?id=730332>. 990 (Thanks to Leonardo Chiquitto for reporting the bug, and to 991 Arthur David Olson and James Cloos for suggesting improvements to the fix.) 992 993 Changes affecting documentation 994 995 tz-link.htm now mentions GNOME. 996 997 998 Release 2014c - 2014-05-13 07:44:13 -0700 999 1000 Changes affecting near-future time stamps 1001 1002 Egypt observes DST starting 2014-05-15 at 24:00. 1003 (Thanks to Ahmad El-Dardiry and Gunther Vermier.) 1004 Details have not been announced, except that DST will not be observed 1005 during Ramadan. Guess that DST will stop during the same Ramadan dates as 1006 Morocco, and that Egypt's future spring and fall transitions will be the 1007 same as 2010 when it last observed DST, namely April's last Friday at 1008 00:00 to September's last Thursday at 23:00 standard time. Also, guess 1009 that Ramadan transitions will be at 00:00 standard time. 1010 1011 Changes affecting code 1012 1013 zic now generates transitions for minimum time values, eliminating guesswork 1014 when handling low-valued time stamps. (Thanks to Arthur David Olson.) 1015 1016 Port to Cygwin sans glibc. (Thanks to Arthur David Olson.) 1017 1018 Changes affecting commentary and documentation 1019 1020 Remove now-confusing comment about Jordan. (Thanks to Oleksii Nochovnyi.) 1021 1022 1023 Release 2014b - 2014-03-24 21:28:50 -0700 1024 1025 Changes affecting near-future time stamps 1026 1027 Crimea switches to Moscow time on 2014-03-30 at 02:00 local time. 1028 (Thanks to Alexander Krivenyshev.) Move its zone.tab entry from UA to RU. 1029 1030 New entry for Troll station, Antarctica. (Thanks to Paul-Inge Flakstad and 1031 Bengt-Inge Larsson.) This is currently an approximation; a better version 1032 will require the zic and localtime fixes mentioned below, and the plan is 1033 to wait for a while until at least the zic fixes propagate. 1034 1035 Changes affecting code 1036 1037 'zic' and 'localtime' no longer reject locations needing four transitions 1038 per year for the foreseeable future. (Thanks to Andrew Main (Zefram).) 1039 Also, 'zic' avoids some unlikely failures due to integer overflow. 1040 1041 Changes affecting build procedure 1042 1043 'make check' now detects Rule lines defined but never used. 1044 The NZAQ rules, an instance of this problem, have been removed. 1045 1046 Changes affecting commentary and documentation 1047 1048 Fix Tuesday/Thursday typo in description of time in Israel. 1049 (Thanks to Bert Katz via Pavel Kharitonov and Mike Frysinger.) 1050 1051 Microsoft Windows 8.1 doesn't support tz database names. (Thanks 1052 to Donald MacQueen.) Instead, the Microsoft Windows Store app 1053 library supports them. 1054 1055 Add comments about Johnston Island time in the 1960s. 1056 (Thanks to Lyle McElhaney.) 1057 1058 Morocco's 2014 DST start will be as predicted. 1059 (Thanks to Sebastien Willemijns.) 1060 1061 1062 Release 2014a - 2014-03-07 23:30:29 -0800 1063 1064 Changes affecting near-future time stamps 1065 1066 Turkey begins DST on 2014-03-31, not 03-30. (Thanks to Faruk Pasin for 1067 the heads-up, and to Tim Parenti for simplifying the update.) 1068 1069 Changes affecting past time stamps 1070 1071 Fiji ended DST on 2014-01-19 at 02:00, not the previously-scheduled 03:00. 1072 (Thanks to Steffen Thorsen.) 1073 1074 Ukraine switched from Moscow to Eastern European time on 1990-07-01 1075 (not 1992-01-01), and observed DST during the entire next winter. 1076 (Thanks to Vladimir in Moscow via Alois Treindl.) 1077 1078 In 1988 Israel observed DST from 04-10 to 09-04, not 04-09 to 09-03. 1079 (Thanks to Avigdor Finkelstein.) 1080 1081 Changes affecting code 1082 1083 A uninitialized-storage bug in 'localtime' has been fixed. 1084 (Thanks to Logan Chien.) 1085 1086 Changes affecting the build procedure 1087 1088 The settings for 'make check_web' now default to Ubuntu 13.10. 1089 1090 Changes affecting commentary and documentation 1091 1092 The boundary of the US Pacific time zone is given more accurately. 1093 (Thanks to Alan Mintz.) 1094 1095 Chile's 2014 DST will be as predicted. (Thanks to Jos Miguel Garrido.) 1096 1097 Paraguay's 2014 DST will be as predicted. (Thanks to Carlos Ral Perasso.) 1098 1099 Better descriptions of countries with same time zone history as 1100 Trinidad and Tobago since 1970. (Thanks to Alan Barrett for suggestion.) 1101 1102 Several changes affect tz-link.htm, the main web page. 1103 1104 Mention Time.is (thanks to Even Scharning) and WX-now (thanks to 1105 David Braverman). 1106 1107 Mention xCal (Internet RFC 6321) and jCal. 1108 1109 Microsoft has some support for tz database names. 1110 1111 CLDR data formats include both XML and JSON. 1112 1113 Mention Maggiolo's map of solar vs standard time. 1114 (Thanks to Arthur David Olson.) 1115 1116 Mention TZ4Net. (Thanks to Matt Johnson.) 1117 1118 Mention the timezone-olson Haskell package. 1119 1120 Mention zeitverschiebung.net. (Thanks to Martin Jger.) 1121 1122 Remove moribund links to daylight-savings-time.info and to 1123 Simple Timer + Clocks. 1124 1125 Update two links. (Thanks to Oscar van Vlijmen.) 1126 1127 Fix some formatting glitches, e.g., remove random newlines from 1128 abbr elements' title attributes. 1129 1130 1131 Release 2013i - 2013-12-17 07:25:23 -0800 1132 1133 Changes affecting near-future time stamps: 1134 1135 Jordan switches back to standard time at 00:00 on December 20, 2013. 1136 The 2006-2011 transition schedule is planned to resume in 2014. 1137 (Thanks to Steffen Thorsen.) 1138 1139 Changes affecting past time stamps: 1140 1141 In 2004, Cuba began DST on March 28, not April 4. 1142 (Thanks to Steffen Thorsen.) 1143 1144 Changes affecting code 1145 1146 The compile-time flag NOSOLAR has been removed, as nowadays the 1147 benefit of slightly shrinking runtime table size is outweighed by the 1148 cost of disallowing potential future updates that exceed old limits. 1149 1150 Changes affecting documentation and commentary 1151 1152 The files solar87, solar88, and solar89 are no longer distributed. 1153 They were a negative experiment - that is, a demonstration that 1154 tz data can represent solar time only with some difficulty and error. 1155 Their presence in the distribution caused confusion, as Riyadh 1156 civil time was generally not solar time in those years. 1157 1158 tz-link.htm now mentions Noda Time. (Thanks to Matt Johnson.) 1159 1160 1161 Release 2013h - 2013-10-25 15:32:32 -0700 1162 1163 Changes affecting current and future time stamps: 1164 1165 Libya has switched its time zone back to UTC+2 without DST, 1166 instead of UTC+1 with DST. (Thanks to Even Scharning.) 1167 1168 Western Sahara (Africa/El_Aaiun) uses Morocco's DST rules. 1169 (Thanks to Gwillim Law.) 1170 1171 Changes affecting future time stamps: 1172 1173 Acre and (we guess) western Amazonas will switch from UTC-4 to UTC-5 1174 on 2013-11-10. This affects America/Rio_Branco and America/Eirunepe. 1175 (Thanks to Steffen Thorsen.) 1176 1177 Add entries for DST transitions in Morocco in the year 2038. 1178 This avoids some year-2038 glitches introduced in 2013g. 1179 (Thanks to Yoshito Umaoka for reporting the problem.) 1180 1181 Changes affecting API 1182 1183 The 'tzselect' command no longer requires the 'select' command, 1184 and should now work with /bin/sh on more platforms. It also works 1185 around a bug in BusyBox awk before version 1.21.0. (Thanks to 1186 Patrick 'P. J.' McDermott and Alan Barrett.) 1187 1188 Changes affecting code 1189 1190 Fix localtime overflow bugs with 32-bit unsigned time_t. 1191 1192 zdump no longer assumes sscanf returns maximal values on overflow. 1193 1194 Changes affecting the build procedure 1195 1196 The builder can specify which programs to use, if any, instead of 1197 'ar' and 'ranlib', and libtz.a is now built locally before being 1198 installed. (Thanks to Michael Forney.) 1199 1200 A dependency typo in the 'zdump' rule has been fixed. 1201 (Thanks to Andrew Paprocki.) 1202 1203 The Makefile has been simplified by assuming that 'mkdir -p' and 'cp -f' 1204 work as specified by POSIX.2-1992 or later; this is portable nowadays. 1205 1206 'make clean' no longer removes 'leapseconds', since it's 1207 host-independent and is part of the distribution. 1208 1209 The unused makefile macros TZCSRCS, TZDSRCS, DATESRCS have been removed. 1210 1211 Changes affecting documentation and commentary 1212 1213 tz-link.htm now mentions TC TIMEZONE's draft time zone service protocol 1214 (thanks to Mike Douglass) and TimezoneJS.Date (thanks to Jim Fehrle). 1215 1216 Update URLs in tz-link page. Add URLs for Microsoft Windows, since 1217 8.1 introduces tz support. Remove URLs for Tru64 and UnixWare (no 1218 longer maintained) and for old advisories. SOFA now does C. 1219 1220 Release 2013g - 2013-09-30 21:08:26 -0700 1221 1222 Changes affecting current and near-future time stamps 1223 1224 Morocco now observes DST from the last Sunday in March to the last 1225 Sunday in October, not April to September respectively. (Thanks 1226 to Steffen Thorsen.) 1227 1228 Changes affecting 'zic' 1229 1230 'zic' now runs on platforms that lack both hard links and symlinks. 1231 (Thanks to Theo Veenker for reporting the problem, for MinGW.) 1232 Also, fix some bugs on platforms that lack hard links but have symlinks. 1233 1234 'zic -v' again warns that Asia/Tehran has no POSIX environment variable 1235 to predict the far future, fixing a bug introduced in 2013e. 1236 1237 Changes affecting the build procedure 1238 1239 The 'leapseconds' file is again put into the tzdata tarball. 1240 Also, 'leapseconds.awk', so tzdata is self-contained. (Thanks to 1241 Matt Burgess and Ian Abbott.) The timestamps of these and other 1242 dependent files in tarballs are adjusted more consistently. 1243 1244 Changes affecting documentation and commentary 1245 1246 The README file is now part of the data tarball as well as the code. 1247 It now states that files are public domain unless otherwise specified. 1248 (Thanks to Andrew Main (Zefram) for asking for clarifications.) 1249 Its details about the 1989 release moved to a place of honor near 1250 the end of NEWS. 1251 1252 1253 Release 2013f - 2013-09-24 23:37:36 -0700 1254 1255 Changes affecting near-future time stamps 1256 1257 Tocantins will very likely not observe DST starting this spring. 1258 (Thanks to Steffen Thorsen.) 1259 1260 Jordan will likely stay at UTC+3 indefinitely, and will not fall 1261 back this fall. 1262 1263 Palestine will fall back at 00:00, not 01:00. (Thanks to Steffen Thorsen.) 1264 1265 Changes affecting API 1266 1267 The types of the global variables 'timezone' and 'altzone' (if present) 1268 have been changed back to 'long'. This is required for 'timezone' 1269 by POSIX, and for 'altzone' by common practice, e.g., Solaris 11. 1270 These variables were originally 'long' in the tz code, but were 1271 mistakenly changed to 'time_t' in 1987; nobody reported the 1272 incompatibility until now. The difference matters on x32, where 1273 'long' is 32 bits and 'time_t' is 64. (Thanks to Elliott Hughes.) 1274 1275 Changes affecting the build procedure 1276 1277 Avoid long strings in leapseconds.awk to work around a mawk bug. 1278 (Thanks to Cyril Baurand.) 1279 1280 Changes affecting documentation and commentary 1281 1282 New file 'NEWS' that contains release notes like this one. 1283 1284 Paraguay's law does not specify DST transition time; 00:00 is customary. 1285 (Thanks to Waldemar Villamayor-Venialbo.) 1286 1287 Minor capitalization fixes. 1288 1289 Changes affecting version-control only 1290 1291 The experimental GitHub repository now contains annotated and 1292 signed tags for recent releases, e.g., '2013e' for Release 2013e. 1293 Releases are tagged starting with 2012e; earlier releases were 1294 done differently, and tags would either not have a simple name or 1295 not exactly match what was released. 1296 1297 'make set-timestamps' is now simpler and a bit more portable. 1298 1299 1300 Release 2013e - 2013-09-19 23:50:04 -0700 1301 1302 Changes affecting near-future time stamps 1303 1304 This year Fiji will start DST on October 27, not October 20. 1305 (Thanks to David Wheeler for the heads-up.) For now, guess that 1306 Fiji will continue to spring forward the Sunday before the fourth 1307 Monday in October. 1308 1309 Changes affecting current and future time zone abbreviations 1310 1311 Use WIB/WITA/WIT rather than WIT/CIT/EIT for alphabetic Indonesian 1312 time zone abbreviations since 1932. (Thanks to George Ziegler, 1313 Priyadi Iman Nurcahyo, Zakaria, Jason Grimes, Martin Pitt, and 1314 Benny Lin.) This affects Asia/Dili, Asia/Jakarta, Asia/Jayapura, 1315 Asia/Makassar, and Asia/Pontianak. 1316 1317 Use ART (UTC-3, standard time), rather than WARST (also UTC-3, but 1318 daylight saving time) for San Luis, Argentina since 2009. 1319 1320 Changes affecting Godthb time stamps after 2037 if version mismatch 1321 1322 Allow POSIX-like TZ strings where the transition time's hour can 1323 range from -167 through 167, instead of the POSIX-required 0 1324 through 24. E.g., TZ='FJT-12FJST,M10.3.1/146,M1.3.4/75' for the 1325 new Fiji rules. This is a more-compact way to represent 1326 far-future time stamps for America/Godthab, America/Santiago, 1327 Antarctica/Palmer, Asia/Gaza, Asia/Hebron, Asia/Jerusalem, 1328 Pacific/Easter, and Pacific/Fiji. Other zones are unaffected by 1329 this change. (Derived from a suggestion by Arthur David Olson.) 1330 1331 Allow POSIX-like TZ strings where daylight saving time is in 1332 effect all year. E.g., TZ='WART4WARST,J1/0,J365/25' for Western 1333 Argentina Summer Time all year. This supports a more-compact way 1334 to represent the 2013d data for America/Argentina/San_Luis. 1335 Because of the change for San Luis noted above this change does not 1336 affect the current data. (Thanks to Andrew Main (Zefram) for 1337 suggestions that improved this change.) 1338 1339 Where these two TZ changes take effect, there is a minor extension 1340 to the tz file format in that it allows new values for the 1341 embedded TZ-format string, and the tz file format version number 1342 has therefore been increased from 2 to 3 as a precaution. 1343 Version-2-based client code should continue to work as before for 1344 all time stamps before 2038. Existing version-2-based client code 1345 (tzcode, GNU/Linux, Solaris) has been tested on version-3-format 1346 files, and typically works in practice even for time stamps after 1347 2037; the only known exception is America/Godthab. 1348 1349 Changes affecting time stamps before 1970 1350 1351 Pacific/Johnston is now a link to Pacific/Honolulu. This corrects 1352 some errors before 1947. 1353 1354 Some zones have been turned into links, when they differ from existing 1355 zones only in older data entries that were likely invented or that 1356 differ only in LMT or transitions from LMT. These changes affect 1357 only time stamps before 1943. The affected zones are: 1358 Africa/Juba, America/Anguilla, America/Aruba, America/Dominica, 1359 America/Grenada, America/Guadeloupe, America/Marigot, 1360 America/Montserrat, America/St_Barthelemy, America/St_Kitts, 1361 America/St_Lucia, America/St_Thomas, America/St_Vincent, 1362 America/Tortola, and Europe/Vaduz. (Thanks to Alois Treindl for 1363 confirming that the old Europe/Vaduz zone was wrong and the new 1364 link is better for WWII-era times.) 1365 1366 Change Kingston Mean Time from -5:07:12 to -5:07:11. This affects 1367 America/Cayman, America/Jamaica and America/Grand_Turk time stamps 1368 from 1890 to 1912. 1369 1370 Change the UT offset of Bern Mean Time from 0:29:44 to 0:29:46. 1371 This affects Europe/Zurich time stamps from 1853 to 1894. (Thanks 1372 to Alois Treindl). 1373 1374 Change the date of the circa-1850 Zurich transition from 1849-09-12 1375 to 1853-07-16, overriding Shanks with data from Messerli about 1376 postal and telegraph time in Switzerland. 1377 1378 Changes affecting time zone abbreviations before 1970 1379 1380 For Asia/Jakarta, use BMT (not JMT) for mean time from 1923 to 1932, 1381 as Jakarta was called Batavia back then. 1382 1383 Changes affecting API 1384 1385 The 'zic' command now outputs a dummy transition when far-future 1386 data can't be summarized using a TZ string, and uses a 402-year 1387 window rather than a 400-year window. For the current data, this 1388 affects only the Asia/Tehran file. It does not affect any of the 1389 time stamps that this file represents, so zdump outputs the same 1390 information as before. (Thanks to Andrew Main (Zefram).) 1391 1392 The 'date' command has a new '-r' option, which lets you specify 1393 the integer time to display, a la FreeBSD. 1394 1395 The 'tzselect' command has two new options '-c' and '-n', which lets you 1396 select a zone based on latitude and longitude. 1397 1398 The 'zic' command's '-v' option now warns about constructs that 1399 require the new version-3 binary file format. (Thanks to Arthur 1400 David Olson for the suggestion.) 1401 1402 Support for floating-point time_t has been removed. 1403 It was always dicey, and POSIX no longer requires it. 1404 (Thanks to Eric Blake for suggesting to the POSIX committee to 1405 remove it, and thanks to Alan Barrett, Clive D.W. Feather, Andy 1406 Heninger, Arthur David Olson, and Alois Treindl, for reporting 1407 bugs and elucidating some of the corners of the old floating-point 1408 implementation.) 1409 1410 The signatures of 'offtime', 'timeoff', and 'gtime' have been 1411 changed back to the old practice of using 'long' to represent UT 1412 offsets. This had been inadvertently and mistakenly changed to 1413 'int_fast32_t'. (Thanks to Christos Zoulas.) 1414 1415 The code avoids undefined behavior on integer overflow in some 1416 more places, including gmtime, localtime, mktime and zdump. 1417 1418 Changes affecting the zdump utility 1419 1420 zdump now outputs "UT" when referring to Universal Time, not "UTC". 1421 "UTC" does not make sense for time stamps that predate the introduction 1422 of UTC, whereas "UT", a more-generic term, does. (Thanks to Steve Allen 1423 for clarifying UT vs UTC.) 1424 1425 Data changes affecting behavior of tzselect and similar programs 1426 1427 Country code BQ is now called the more-common name "Caribbean Netherlands" 1428 rather than the more-official "Bonaire, St Eustatius & Saba". 1429 1430 Remove from zone.tab the names America/Montreal, America/Shiprock, 1431 and Antarctica/South_Pole, as they are equivalent to existing 1432 same-country-code zones for post-1970 time stamps. The data entries for 1433 these names are unchanged, so the names continue to work as before. 1434 1435 Changes affecting code internals 1436 1437 zic -c now runs way faster on 64-bit hosts when given large numbers. 1438 1439 zic now uses vfprintf to avoid allocating and freeing some memory. 1440 1441 tzselect now computes the list of continents from the data, 1442 rather than have it hard-coded. 1443 1444 Minor changes pacify GCC 4.7.3 and GCC 4.8.1. 1445 1446 Changes affecting the build procedure 1447 1448 The 'leapseconds' file is now generated automatically from a 1449 new file 'leap-seconds.list', which is a copy of 1450 <ftp://time.nist.gov/pub/leap-seconds.list>. 1451 A new source file 'leapseconds.awk' implements this. 1452 The goal is simplification of the future maintenance of 'leapseconds'. 1453 1454 When building the 'posix' or 'right' subdirectories, if the 1455 subdirectory would be a copy of the default subdirectory, it is 1456 now made a symbolic link if that is supported. This saves about 1457 2 MB of file system space. 1458 1459 The links America/Shiprock and Antarctica/South_Pole have been 1460 moved to the 'backward' file. This affects only nondefault builds 1461 that omit 'backward'. 1462 1463 Changes affecting version-control only 1464 1465 .gitignore now ignores 'date'. 1466 1467 Changes affecting documentation and commentary 1468 1469 Changes to the 'tzfile' man page 1470 1471 It now mentions that the binary file format may be extended in 1472 future versions by appending data. 1473 1474 It now refers to the 'zdump' and 'zic' man pages. 1475 1476 Changes to the 'zic' man page 1477 1478 It lists conditions that elicit a warning with '-v'. 1479 1480 It says that the behavior is unspecified when duplicate names 1481 are given, or if the source of one link is the target of another. 1482 1483 Its examples are updated to match the latest data. 1484 1485 The definition of white space has been clarified slightly. 1486 (Thanks to Michael Deckers.) 1487 1488 Changes to the 'Theory' file 1489 1490 There is a new section about the accuracy of the tz database, 1491 describing the many ways that errors can creep in, and 1492 explaining why so many of the pre-1970 time stamps are wrong or 1493 misleading (thanks to Steve Allen, Lester Caine, and Garrett 1494 Wollman for discussions that contributed to this). 1495 1496 The 'Theory' file describes LMT better (this follows a 1497 suggestion by Guy Harris). 1498 1499 It refers to the 2013 edition of POSIX rather than the 2004 edition. 1500 1501 It's mentioned that excluding 'backward' should not affect the 1502 other data, and it suggests at least one zone.tab name per 1503 inhabited country (thanks to Stephen Colebourne). 1504 1505 Some longstanding restrictions on names are documented, e.g., 1506 'America/New_York' precludes 'America/New_York/Bronx'. 1507 1508 It gives more reasons for the 1970 cutoff. 1509 1510 It now mentions which time_t variants are supported, such as 1511 signed integer time_t. (Thanks to Paul Goyette for reporting 1512 typos in an experimental version of this change.) 1513 1514 (Thanks to Philip Newton for correcting typos in these changes.) 1515 1516 Documentation and commentary is more careful to distinguish UT in 1517 general from UTC in particular. (Thanks to Steve Allen.) 1518 1519 Add a better source for the Zurich 1894 transition. 1520 (Thanks to Pierre-Yves Berger.) 1521 1522 Update shapefile citations in tz-link.htm. (Thanks to Guy Harris.) 1523 1524 1525 Release 2013d - 2013-07-05 07:38:01 -0700 1526 1527 Changes affecting future time stamps: 1528 1529 Morocco's midsummer transitions this year are July 7 and August 10, 1530 not July 9 and August 8. (Thanks to Andrew Paprocki.) 1531 1532 Israel now falls back on the last Sunday of October. 1533 (Thanks to Ephraim Silverberg.) 1534 1535 Changes affecting past time stamps: 1536 1537 Specify Jerusalem's location more precisely; this changes the pre-1880 1538 times by 2 s. 1539 1540 Changing affecting metadata only: 1541 1542 Fix typos in the entries for country codes BQ and SX. 1543 1544 Changes affecting code: 1545 1546 Rework the code to fix a bug with handling Australia/Macquarie on 1547 32-bit hosts (thanks to Arthur David Olson). 1548 1549 Port to platforms like NetBSD, where time_t can be wider than long. 1550 1551 Add support for testing time_t types other than the system's. 1552 Run 'make check_time_t_alternatives' to try this out. 1553 Currently, the tests fail for unsigned time_t; 1554 this should get fixed at some point. 1555 1556 Changes affecting documentation and commentary: 1557 1558 Deemphasize the significance of national borders. 1559 1560 Update the zdump man page. 1561 1562 Remove obsolete NOID comment (thanks to Denis Excoffier). 1563 1564 Update several URLs and comments in the web pages. 1565 1566 Spelling fixes (thanks to Kevin Lyda and Jonathan Leffler). 1567 1568 Update URL for CLDR Zone->Tzid table (thanks to Yoshito Umaoka). 1569 1570 1571 Release 2013c - 2013-04-19 16:17:40 -0700 1572 1573 Changes affecting current and future time stamps: 1574 1575 Palestine observed DST starting March 29, 2013. (Thanks to 1576 Steffen Thorsen.) From 2013 on, Gaza and Hebron both observe DST, 1577 with the predicted rules being the last Thursday in March at 24:00 1578 to the first Friday on or after September 21 at 01:00. 1579 1580 Assume that the recent change to Paraguay's DST rules is permanent, 1581 by moving the end of DST to the 4th Sunday in March every year. 1582 (Thanks to Carlos Ral Perasso.) 1583 1584 Changes affecting past time stamps: 1585 1586 Fix some historical data for Palestine to agree with that of 1587 timeanddate.com, as follows: 1588 1589 The spring 2008 change in Gaza and Hebron was on 00:00 Mar 28, not 1590 00:00 Apr 1. 1591 1592 The fall 2009 change in Gaza and Hebron on Sep 4 was at 01:00, not 1593 02:00. 1594 1595 The spring 2010 change in Hebron was 00:00 Mar 26, not 00:01 Mar 27. 1596 1597 The spring 2011 change in Gaza was 00:01 Apr 1, not 12:01 Apr 2. 1598 1599 The spring 2011 change in Hebron on Apr 1 was at 00:01, not 12:01. 1600 1601 The fall 2011 change in Hebron on Sep 30 was at 00:00, not 03:00. 1602 1603 Fix times of habitation for Macquarie to agree with the Tasmania 1604 Parks & Wildlife Service history, which indicates that permanent 1605 habitation was 1899-1919 and 1948 on. 1606 1607 Changing affecting metadata only: 1608 1609 Macquarie Island is politically part of Australia, not Antarctica. 1610 (Thanks to Tobias Conradi.) 1611 1612 Sort Macquarie more-consistently with other parts of Australia. 1613 (Thanks to Tim Parenti.) 1614 1615 1616 Release 2013b - 2013-03-10 22:33:40 -0700 1617 1618 Changes affecting current and future time stamps: 1619 1620 Haiti uses US daylight-saving rules this year, and presumably future years. 1621 This changes time stamps starting today. (Thanks to Steffen Thorsen.) 1622 1623 Paraguay will end DST on March 24 this year. 1624 (Thanks to Steffen Thorsen.) For now, assume it's just this year. 1625 1626 Morocco does not observe DST during Ramadan; 1627 try to predict Ramadan in Morocco as best we can. 1628 (Thanks to Erik Homoet for the heads-up.) 1629 1630 Changes affecting commentary: 1631 1632 Update URLs in tz-link page. Add URLs for webOS, BB10, iOS. 1633 Update URL for Solaris. Mention Internet RFC 6557. 1634 Update Internet RFCs 2445->5545, 2822->5322. 1635 Switch from FTP to HTTP for Internet RFCs. 1636 1637 1638 Release 2013a - 2013-02-27 09:20:35 -0800 1639 1640 Change affecting binary data format: 1641 1642 The zone offset at the end of version-2-format zone files is now 1643 allowed to be 24:00, as per POSIX.1-2008. (Thanks to Arthur David Olson.) 1644 1645 Changes affecting current and future time stamps: 1646 1647 Chile's 2013 rules, and we guess rules for 2014 and later, will be 1648 the same as 2012, namely Apr Sun>=23 03:00 UTC to Sep Sun>=2 04:00 UTC. 1649 (Thanks to Steffen Thorsen and Robert Elz.) 1650 1651 New Zones Asia/Khandyga, Asia/Ust-Nera, Europe/Busingen. 1652 (Thanks to Tobias Conradi and Arthur David Olson.) 1653 1654 Many changes affect historical time stamps before 1940. 1655 These were deduced from: Milne J. Civil time. Geogr J. 1899 1656 Feb;13(2):173-94 <http://www.jstor.org/stable/1774359>. 1657 1658 Changes affecting the code: 1659 1660 Fix zic bug that mishandled Egypt's 2010 changes (this also affected 1661 the data). (Thanks to Arthur David Olson.) 1662 1663 Fix localtime bug when time_t is unsigned and data files were generated 1664 by a signed time_t system. (Thanks to Doug Bailey for reporting and 1665 to Arthur David Olson for fixing.) 1666 1667 Allow the email address for bug reports to be set by the packager. 1668 The default is tz (a] iana.org, as before. (Thanks to Joseph S. Myers.) 1669 1670 Update HTML checking to be compatible with Ubuntu 12.10. 1671 1672 Check that files are a safe subset of ASCII. At some point we may 1673 relax this requirement to a safe subset of UTF-8. Without the 1674 check, some non-UTF-8 encodings were leaking into the distribution. 1675 1676 Commentary changes: 1677 1678 Restore a comment about copyright notices that was inadvertently deleted. 1679 (Thanks to Arthur David Olson.) 1680 1681 Improve the commentary about which districts observe what times 1682 in Russia. (Thanks to Oscar van Vlijmen and Arthur David Olson). 1683 1684 Add web page links to tz.js. 1685 1686 Add "Run by the Monkeys" to tz-art. (Thanks to Arthur David Olson.) 1687 1688 1689 Release 2012j - 2012-11-12 18:34:49 -0800 1690 1691 Libya moved to CET this weekend, but with DST planned next year. 1692 (Thanks to Even Scharning, Steffen Thorsen, and Tim Parenti.) 1693 1694 Signatures now have the extension .asc, not .sign, as that's more 1695 standard. (Thanks to Phil Pennock.) 1696 1697 The output of 'zdump --version', and of 'zic --version', now 1698 uses a format that is more typical for --version. 1699 (Thanks to Joseph S. Myers.) 1700 1701 The output of 'tzselect --help', 'zdump --help', and 'zic --help' 1702 now uses tz (a] iana.org rather than the old elsie address. 1703 1704 zic -v now complains about abbreviations that are less than 3 1705 or more than 6 characters, as per Posix. Formerly, it checked 1706 for abbreviations that were more than 3. 1707 1708 'make public' no longer puts its temporary directory under /tmp, 1709 and uses the just-built zic rather than the system zic. 1710 1711 Various fixes to documentation and commentary. 1712 1713 1714 Release 2012i - 2012-11-03 12:57:09 -0700 1715 1716 Cuba switches from DST tomorrow at 01:00. (Thanks to Steffen Thorsen.) 1717 1718 Linker flags can now be specified via LDFLAGS. 1719 AWK now defaults to 'awk', not 'nawk'. 1720 The shell in tzselect now defaults to /bin/bash, but this can 1721 be overridden by specifying KSHELL. 1722 The main web page now mentions the unofficial GitHub repository. 1723 (Thanks to Mike Frysinger.) 1724 1725 Tarball signatures can now be built by running 'make signatures'. 1726 There are also new makefile rules 'tarballs', 'check_public', and 1727 separate makefile rules for each tarball and signature file. 1728 A few makefile rules are now more portable to strict POSIX. 1729 1730 The main web page now lists the canonical IANA URL. 1731 1732 1733 Release 2012h - 2012-10-26 22:49:10 -0700 1734 1735 Bahia no longer has DST. (Thanks to Kelley Cook.) 1736 1737 Tocantins has DST. (Thanks to Rodrigo Severo.) 1738 1739 Israel has new DST rules next year. (Thanks to Ephraim Silverberg.) 1740 1741 Jordan stays on DST this winter. (Thanks to Steffen Thorsen.) 1742 1743 Web page updates. 1744 1745 More C modernization, except that at Arthur David Olson's suggestion 1746 the instances of 'register' were kept. 1747 1748 1749 Release 2012g - 2012-10-17 20:59:45 -0700 1750 1751 Samoa fall 2012 and later. (Thanks to Nicholas Pereira and Robert Elz.) 1752 1753 Palestine fall 2012. (Thanks to Steffen Thorsen.) 1754 1755 Assume C89. 1756 1757 To attack the version-number problem, this release ships the file 1758 'Makefile' (which contains the release number) in both the tzcode and 1759 the tzdata tarballs. The two Makefiles are identical, and should be 1760 identical in any matching pair of tarballs, so it shouldn't matter 1761 which order you extract the tarballs. Perhaps we can come up with a 1762 better version-number scheme at some point; this scheme does have the 1763 virtue of not adding more files. 1764 1765 1766 Release 2012f - 2012-09-12 23:17:03 -0700 1767 1768 * australasia (Pacific/Fiji): Fiji DST is October 21 through January 1769 20 this year. (Thanks to Steffen Thorsen.) 1770 1771 1772 Release 2012e - 2012-08-02 20:44:55 -0700 1773 1774 * australasia (Pacific/Fakaofo): Tokelau is UTC+13, not UTC+14. 1775 (Thanks to Steffen Thorsen.) 1776 1777 * Use a single version number for both code and data. 1778 1779 * .gitignore: New file. 1780 1781 * Remove trailing white space. 1782 1783 1784 Release code2012c-data2012d - 2012-07-19 16:35:33 -0700 1785 1786 Changes for Morocco's time stamps, which take effect in a couple of 1787 hours, along with infrastructure changes to accommodate how the tz 1788 code and data are released on IANA. 1789 1790 1791 Release data2012c - 2012-03-27 12:17:25 -0400 1792 1793 africa 1794 Summer time changes for Morocco (to start late April 2012) 1795 1796 asia 1797 Changes for 2012 for Gaza & the West Bank (Hebron) and Syria 1798 1799 northamerica 1800 Haiti following US/Canada rules for 2012 (and we're assuming, 1801 for now anyway, for the future). 1802 1803 1804 Release 2012b - 2012-03-02 12:29:15 +0700 1805 1806 There is just one change to tzcode2012b (compared with 2012a): 1807 the Makefile that was accidentally included with 2012a has been 1808 replaced with the version that should have been there, which is 1809 identical with the previous version (from tzcode2011i). 1810 1811 There are just two changes in tzdata2012b compared with 2012a. 1812 1813 Most significantly, summer time in Cuba has been delayed 3 weeks 1814 (now starts April 1 rather than March 11). Since Mar 11 (the old start 1815 date, as listed in 2012a) is just a little over a week away, this 1816 change is urgent. 1817 1818 Less importantly, an excess tab in one of the changes in zone.tab 1819 in 2012a has been removed. 1820 1821 1822 Release 2012a - 2012-03-01 18:28:10 +0700 1823 1824 The changes in tzcode2012a (compared to the previous version, 2011i) 1825 are entirely to the README and tz-art.htm and tz-link.htm files, if 1826 none of those concern you, you can ignore the code update. The changes 1827 reflect the changed addresses for the mailing list and the code and 1828 data distribution points & methods (and a link to DateTime::TimeZone::Tzfile 1829 has been added to tz-link.htm). 1830 1831 In tzdata2012a (compared to the previous release, which was 2011n) 1832 the major changes are: 1833 Chile 2011/2012 and 2012/2013 summer time date adjustments. 1834 Falkland Islands onto permanent summer time (we're assuming for the 1835 foreseeable future, though 2012 is all we're fairly certain of.) 1836 Armenia has abolished Summer Time. 1837 Tokelau jumped the International Date Line back last December 1838 (just the same as their near neighbour, Samoa). 1839 America/Creston is a new zone for a small area of British Columbia 1840 There will be a leapsecond 2012-06-30 23:59:60 UTC. 1841 1842 Other minor changes are: 1843 Corrections to 1918 Canadian summer time end dates. 1844 Updated URL for UK time zone history (in comments) 1845 A few typos in Le Corre's list of free French place names (comments) 1846 1847 1848 Release data2011n - 2011-10-30 14:57:54 +0700 1849 1850 There are three changes of note - most urgently, Cuba (America/Havana) 1851 has extended summer time by two weeks, now to end on Nov 13, rather than 1852 the (already past) Oct 30. Second, the Pridnestrovian Moldavian Republic 1853 (Europe/Tiraspol) decided not to split from the rest of Moldova after 1854 all, and consequently that zone has been removed (again) and reinstated 1855 in the "backward" file as a link to Europe/Chisinau. And third, the 1856 end date for Fiji's summer time this summer was moved forward from the 1857 earlier planned Feb 26, to Jan 22. 1858 1859 Apart from that, Moldova (MD) returns to a single entry in zone.tab 1860 (and the incorrect syntax that was in the 2011m version of that file 1861 is so fixed - it would have been fixed in a different way had this 1862 change not happened - that's the "missing" sccs version id). 1863 1864 1865 Release data2011m - 2011-10-24 21:42:16 +0700 1866 1867 In particular, the typos in comments in the data (2011-11-17 should have 1868 been 2011-10-17 as Alan Barrett noted, and spelling of Tiraspol that 1869 Tim Parenti noted) have been fixed, and the change for Ukraine has been 1870 made in all 4 Ukrainian zones, rather than just Kiev (again, thanks to 1871 Tim Parenti, and also Denys Gavrysh) 1872 1873 In addition, I added Europe/Tiraspol to zone.tab. 1874 1875 This time, all the files have new version numbers... (including the files 1876 otherwise unchanged in 2011m that were changed in 2011l but didn't get new 1877 version numbers there...) 1878 1879 1880 Release data2011l - 2011-10-10 11:15:43 +0700 1881 1882 There are just 2 changes that cause different generated tzdata files from 1883 zic, to Asia/Hebron and Pacific/Fiji - the possible change for Bahia, Brazil 1884 is included, but commented out. Compared with the diff I sent out last week, 1885 this version also includes attributions for the sources for the changes 1886 (in much the same format as ado used, but the html tags have not been 1887 checked, verified, or used in any way at all, so if there are errors there, 1888 please let me know.) 1889 1890 1891 Release data2011k - 2011-09-20 17:54:03 -0400 1892 1893 [not summarized] 1894 1895 1896 Release data2011j - 2011-09-12 09:22:49 -0400 1897 1898 (contemporary changes for Samoa; past changes for Kenya, Uganda, and 1899 Tanzania); there are also two spelling corrections to comments in 1900 the australasia file (with thanks to Christos Zoulas). 1901 1902 1903 Release 2011i - 2011-08-29 05:56:32 -0400 1904 1905 [not summarized] 1906 1907 1908 Release data2011h - 2011-06-15 18:41:48 -0400 1909 1910 Russia and Curaao changes 1911 1912 1913 Release 2011g - 2011-04-25 09:07:22 -0400 1914 1915 update the rules for Egypt to reflect its abandonment of DST this year 1916 1917 1918 Release 2011f - 2011-04-06 17:14:53 -0400 1919 1920 [not summarized] 1921 1922 1923 Release 2011e - 2011-03-31 16:04:38 -0400 1924 1925 Morocco, Chile, and tz-link changes 1926 1927 1928 Release 2011d - 2011-03-14 09:18:01 -0400 1929 1930 changes that impact present-day time stamps in Cuba, Samoa, and Turkey 1931 1932 1933 Release 2011c - 2011-03-07 09:30:09 -0500 1934 1935 These do affect current time stamps in Chile and Annette Island, Canada. 1936 1937 1938 Release 2011b - 2011-02-07 08:44:50 -0500 1939 1940 [not summarized] 1941 1942 1943 Release 2011a - 2011-01-24 10:30:16 -0500 1944 1945 [not summarized] 1946 1947 1948 Release data2010o - 2010-11-01 09:18:23 -0400 1949 1950 change to the end of DST in Fiji in 2011 1951 1952 1953 Release 2010n - 2010-10-25 08:19:17 -0400 1954 1955 [not summarized] 1956 1957 1958 Release 2010m - 2010-09-27 09:24:48 -0400 1959 1960 Hong Kong, Vostok, and zic.c changes 1961 1962 1963 Release 2010l - 2010-08-16 06:57:25 -0400 1964 1965 [not summarized] 1966 1967 1968 Release 2010k - 2010-07-26 10:42:27 -0400 1969 1970 [not summarized] 1971 1972 1973 Release 2010j - 2010-05-10 09:07:48 -0400 1974 1975 changes for Baha de Banderas and for version naming 1976 1977 1978 Release data2010i - 2010-04-16 18:50:45 -0400 1979 1980 the end of DST in Morocco on 2010-08-08 1981 1982 1983 Release data2010h - 2010-04-05 09:58:56 -0400 1984 1985 [not summarized] 1986 1987 1988 Release data2010g - 2010-03-24 11:14:53 -0400 1989 1990 [not summarized] 1991 1992 1993 Release 2010f - 2010-03-22 09:45:46 -0400 1994 1995 [not summarized] 1996 1997 1998 Release data2010e - 2010-03-08 14:24:27 -0500 1999 2000 corrects the Dhaka bug found by Danvin Ruangchan 2001 2002 2003 Release data2010d - 2010-03-06 07:26:01 -0500 2004 2005 [not summarized] 2006 2007 2008 Release 2010c - 2010-03-01 09:20:58 -0500 2009 2010 changes including KRE's suggestion for earlier initialization of 2011 "goahead" and "goback" structure elements 2012 2013 2014 Release code2010a - 2010-02-16 10:40:04 -0500 2015 2016 [not summarized] 2017 2018 2019 Release data2010b - 2010-01-20 12:37:01 -0500 2020 2021 Mexico changes 2022 2023 2024 Release data2010a - 2010-01-18 08:30:04 -0500 2025 2026 changes to Dhaka 2027 2028 2029 Release data2009u - 2009-12-26 08:32:28 -0500 2030 2031 changes to DST in Bangladesh 2032 2033 2034 Release 2009t - 2009-12-21 13:24:27 -0500 2035 2036 [not summarized] 2037 2038 2039 Release data2009s - 2009-11-14 10:26:32 -0500 2040 2041 (cosmetic) Antarctica change and the DST-in-Fiji-in-2009-and-2010 change 2042 2043 2044 Release 2009r - 2009-11-09 10:10:31 -0500 2045 2046 "antarctica" and "tz-link.htm" changes 2047 2048 2049 Release 2009q - 2009-11-02 09:12:40 -0500 2050 2051 with two corrections as reported by Eric Muller and Philip Newton 2052 2053 2054 Release data2009p - 2009-10-23 15:05:27 -0400 2055 2056 Argentina (including San Luis) changes (with the correction from 2057 Mariano Absatz) 2058 2059 2060 Release data2009o - 2009-10-14 16:49:38 -0400 2061 2062 Samoa (commentary only), Pakistan, and Bangladesh changes 2063 2064 2065 Release data2009n - 2009-09-22 15:13:38 -0400 2066 2067 added commentary for Argentina and a change to the end of DST in 2068 2009 in Pakistan 2069 2070 2071 Release data2009m - 2009-09-03 10:23:43 -0400 2072 2073 Samoa and Palestine changes 2074 2075 2076 Release data2009l - 2009-08-14 09:13:07 -0400 2077 2078 Samoa (comments only) and Egypt 2079 2080 2081 Release 2009k - 2009-07-20 09:46:08 -0400 2082 2083 [not summarized] 2084 2085 2086 Release data2009j - 2009-06-15 06:43:59 -0400 2087 2088 Bangladesh change (with a short turnaround since the DST change is 2089 impending) 2090 2091 2092 Release 2009i - 2009-06-08 09:21:22 -0400 2093 2094 updating for DST in Bangladesh this year 2095 2096 2097 Release 2009h - 2009-05-26 09:19:14 -0400 2098 2099 [not summarized] 2100 2101 2102 Release data2009g - 2009-04-20 16:34:07 -0400 2103 2104 Cairo 2105 2106 2107 Release data2009f - 2009-04-10 11:00:52 -0400 2108 2109 correct DST in Pakistan 2110 2111 2112 Release 2009e - 2009-04-06 09:08:11 -0400 2113 2114 [not summarized] 2115 2116 2117 Release 2009d - 2009-03-23 09:38:12 -0400 2118 2119 Morocco, Tunisia, Argentina, and American Astronomical Society changes 2120 2121 2122 Release data2009c - 2009-03-16 09:47:51 -0400 2123 2124 change to the start of Cuban DST 2125 2126 2127 Release 2009b - 2009-02-09 11:15:22 -0500 2128 2129 [not summarized] 2130 2131 2132 Release 2009a - 2009-01-21 10:09:39 -0500 2133 2134 [not summarized] 2135 2136 2137 Release data2008i - 2008-10-21 12:10:25 -0400 2138 2139 southamerica and zone.tab files, with Argentina DST rule changes and 2140 United States zone reordering and recommenting 2141 2142 2143 Release 2008h - 2008-10-13 07:33:56 -0400 2144 2145 [not summarized] 2146 2147 2148 Release 2008g - 2008-10-06 09:03:18 -0400 2149 2150 Fix a broken HTML anchor and update Brazil's DST transitions; 2151 there's also a slight reordering of information in tz-art.htm. 2152 2153 2154 Release data2008f - 2008-09-09 22:33:26 -0400 2155 2156 [not summarized] 2157 2158 2159 Release 2008e - 2008-07-28 14:11:17 -0400 2160 2161 changes by Arthur David Olson and Jesper Nrgaard Welen 2162 2163 2164 Release data2008d - 2008-07-07 09:51:38 -0400 2165 2166 changes by Arthur David Olson, Paul Eggert, and Rodrigo Severo 2167 2168 2169 Release data2008c - 2008-05-19 17:48:03 -0400 2170 2171 Pakistan, Morocco, and Mongolia 2172 2173 2174 Release data2008b - 2008-03-24 08:30:59 -0400 2175 2176 including renaming Asia/Calcutta to Asia/Kolkata, with a backward 2177 link provided 2178 2179 2180 Release 2008a - 2008-03-08 05:42:16 -0500 2181 2182 [not summarized] 2183 2184 2185 Release 2007k - 2007-12-31 10:25:22 -0500 2186 2187 most importantly, changes to the "southamerica" file based on 2188 Argentina's readoption of daylight saving time 2189 2190 2191 Release 2007j - 2007-12-03 09:51:01 -0500 2192 2193 1. eliminate the "P" (parameter) macro; 2194 2195 2. the "noncontroversial" changes circulated on the time zone 2196 mailing list (less the changes to "logwtmp.c"); 2197 2198 3. eliminate "too many transition" errors when "min" is used in time 2199 zone rules; 2200 2201 4. changes by Paul Eggert (including updated information for Venezuela). 2202 2203 2204 Release data2007i - 2007-10-30 10:28:11 -0400 2205 2206 changes for Cuba and Syria 2207 2208 2209 Release 2007h - 2007-10-01 10:05:51 -0400 2210 2211 changes by Paul Eggert, as well as an updated link to the ICU 2212 project in tz-link.htm 2213 2214 2215 Release 2007g - 2007-08-20 10:47:59 -0400 2216 2217 changes by Paul Eggert 2218 2219 The "leapseconds" file has been updated to incorporate the most 2220 recent International Earth Rotation and Reference Systems Service 2221 (IERS) bulletin. 2222 2223 There's an addition to tz-art.htm regarding the television show "Medium". 2224 2225 2226 Release 2007f - 2007-05-07 10:46:46 -0400 2227 2228 changes by Paul Eggert (including Haiti, Turks and Caicos, and New 2229 Zealand) 2230 2231 changes to zic.c to allow hour values greater than 24 (along with 2232 Paul's improved time value overflow checking) 2233 2234 2235 Release 2007e - 2007-04-02 10:11:52 -0400 2236 2237 Syria and Honduras changes by Paul Eggert 2238 2239 zic.c variable renaming changes by Arthur David Olson 2240 2241 2242 Release 2007d - 2007-03-20 08:48:30 -0400 2243 2244 changes by Paul Eggert 2245 2246 the elimination of white space at the ends of lines 2247 2248 2249 Release 2007c - 2007-02-26 09:09:37 -0500 2250 2251 changes by Paul Eggert 2252 2253 2254 Release 2007b - 2007-02-12 09:34:20 -0500 2255 2256 Paul Eggert's proposed change to the quotation handling logic in zic.c. 2257 2258 changes to the commentary in "leapseconds" reflecting the IERS 2259 announcement that there is to be no positive leap second at the end 2260 of June 2007. 2261 2262 2263 Release 2007a - 2007-01-08 12:28:29 -0500 2264 2265 changes by Paul Eggert 2266 2267 Derick Rethan's Asmara change 2268 2269 Oscar van Vlijmen's Easter Island local mean time change 2270 2271 symbolic link changes 2272 2273 2274 Release 2006p - 2006-11-27 08:54:27 -0500 2275 2276 changes by Paul Eggert 2277 2278 2279 Release 2006o - 2006-11-06 09:18:07 -0500 2280 2281 changes by Paul Eggert 2282 2283 2284 Release 2006n - 2006-10-10 11:32:06 -0400 2285 2286 changes by Paul Eggert 2287 2288 2289 Release 2006m - 2006-10-02 15:32:35 -0400 2290 2291 changes for Uruguay, Palestine, and Egypt by Paul Eggert 2292 2293 (minimalist) changes to zic.8 to clarify "until" information 2294 2295 2296 Release data2006l - 2006-09-18 12:58:11 -0400 2297 2298 Paul's best-effort work on this coming weekend's Egypt time change 2299 2300 2301 Release 2006k - 2006-08-28 12:19:09 -0400 2302 2303 changes by Paul Eggert 2304 2305 2306 Release 2006j - 2006-08-21 09:56:32 -0400 2307 2308 changes by Paul Eggert 2309 2310 2311 Release code2006i - 2006-08-07 12:30:55 -0400 2312 2313 localtime.c fixes 2314 2315 Ken Pizzini's conversion script 2316 2317 2318 Release code2006h - 2006-07-24 09:19:37 -0400 2319 2320 adds public domain notices to four files 2321 2322 includes a fix for transition times being off by a second 2323 2324 adds a new recording to the "arts" file (information courtesy Colin Bowern) 2325 2326 2327 Release 2006g - 2006-05-08 17:18:09 -0400 2328 2329 northamerica changes by Paul Eggert 2330 2331 2332 Release 2006f - 2006-05-01 11:46:00 -0400 2333 2334 a missing version number problem is fixed (with thanks to Bradley 2335 White for catching the problem) 2336 2337 2338 Release 2006d - 2006-04-17 14:33:43 -0400 2339 2340 changes by Paul Eggert 2341 2342 added new items to tz-arts.htm that were found by Paul 2343 2344 2345 Release 2006c - 2006-04-03 10:09:32 -0400 2346 2347 two sets of data changes by Paul Eggert 2348 2349 a fencepost error fix in zic.c 2350 2351 changes to zic.c and the "europe" file to minimize differences 2352 between output produced by the old 32-bit zic and the new 64-bit 2353 version 2354 2355 2356 Release 2006b - 2006-02-20 10:08:18 -0500 2357 [tz32code2006b + tz64code2006b + tzdata2006b] 2358 2359 64-bit code 2360 2361 All SCCS IDs were bumped to "8.1" for this release. 2362 2363 2364 Release 2006a - 2006-01-30 08:59:31 -0500 2365 2366 changes by Paul Eggert (in particular, Indiana time zone moves) 2367 2368 an addition to the zic manual page to describe how special-case 2369 transitions are handled 2370 2371 2372 Release 2005r - 2005-12-27 09:27:13 -0500 2373 2374 Canadian changes by Paul Eggert 2375 2376 They also add "<pre>" directives to time zone data files and reflect 2377 changes to warning message logic in "zdump.c" (but with calls to 2378 "gettext" kept unbundled at the suggestion of Ken Pizzini). 2379 2380 2381 Release 2005q - 2005-12-13 09:17:09 -0500 2382 2383 Nothing earth-shaking here: 2384 1. Electronic mail addresses have been removed. 2385 2. Casts of the return value of exit have been removed. 2386 3. Casts of the argument of is.* macros have been added. 2387 4. Indentation in one section of zic.c has been fixed. 2388 5. References to dead URLs in the data files have been dealt with. 2389 2390 2391 Release 2005p - 2005-12-05 10:30:53 -0500 2392 2393 "systemv", "tz-link.htm", and "zdump.c" changes 2394 (less the casts of arguments to the is* macros) 2395 2396 2397 Release 2005o - 2005-11-28 10:55:26 -0500 2398 2399 Georgia, Cuba, Nicaragua, and Jordan changes by Paul Eggert 2400 2401 zdump.c lint fixes by Arthur David Olson 2402 2403 2404 Release 2005n - 2005-10-03 09:44:09 -0400 2405 2406 changes by Paul Eggert (both the Uruguay changes and the Kyrgyzstan 2407 et al. changes) 2408 2409 2410 Release 2005m - 2005-08-29 12:15:40 -0400 2411 2412 changes by Paul Eggert (with a small tweak to the tz-art change) 2413 2414 a declaration of an unused variable has been removed from zdump.c 2415 2416 2417 Release 2005l - 2005-08-22 12:06:39 -0400 2418 2419 changes by Paul Eggert 2420 2421 overflow/underflow checks by Arthur David Olson, minus changes to 2422 the "Theory" file about the pending addition of 64-bit data (I grow 2423 less confident of the changes being accepted with each passing day, 2424 and the changes no longer increase the data files nine-fold--there's 2425 less than a doubling in size by my local Sun's reckoning) 2426 2427 2428 Release 2005k - 2005-07-14 14:14:24 -0400 2429 2430 The "leapseconds" file has been edited to reflect the recently 2431 announced leap second at the end of 2005. 2432 2433 I've also deleted electronic mail addresses from the files as an 2434 anti-spam measure. 2435 2436 2437 Release 2005j - 2005-06-13 14:34:13 -0400 2438 2439 These reflect changes to limit the length of time zone abbreviations 2440 and the characters used in those abbreviations. 2441 2442 There are also changes to handle POSIX-style "quoted" time zone 2443 environment variables. 2444 2445 The changes were circulated on the time zone mailing list; the only 2446 change since then was the removal of a couple of minimum-length of 2447 abbreviation checks. 2448 2449 2450 Release data2005i - 2005-04-21 15:04:16 -0400 2451 2452 changes (most importantly to Nicaragua and Haiti) by Paul Eggert 2453 2454 2455 Release 2005h - 2005-04-04 11:24:47 -0400 2456 2457 changes by Paul Eggert 2458 2459 minor changes to Makefile and zdump.c to produce more useful output 2460 when doing a "make typecheck" 2461 2462 2463 Release 2005g - 2005-03-14 10:11:21 -0500 2464 2465 changes by Paul Eggert (a change to current DST rules in Uruguay and 2466 an update to a link to time zone software) 2467 2468 2469 Release 2005f - 2005-03-01 08:45:32 -0500 2470 2471 data and documentation changes by Paul Eggert 2472 2473 2474 Release 2005e - 2005-02-10 15:59:44 -0500 2475 2476 [not summarized] 2477 2478 2479 Release code2005d - 2005-01-31 09:21:47 -0500 2480 2481 make zic complain about links to links if the -v flag is used 2482 2483 have "make public" do more code checking 2484 2485 add an include to "localtime.c" for the benefit of gcc systems 2486 2487 2488 Release 2005c - 2005-01-17 18:36:29 -0500 2489 2490 get better results when mktime runs on a system where time_t is double 2491 2492 changes to the data files (most importantly to Paraguay) 2493 2494 2495 Release 2005b - 2005-01-10 09:19:54 -0500 2496 2497 Get localtime and gmtime working on systems with exotic time_t types. 2498 2499 Update the leap second commentary in the "leapseconds" file. 2500 2501 2502 Release 2005a - 2005-01-01 13:13:44 -0500 2503 2504 [not summarized] 2505 2506 2507 Release code2004i - 2004-12-14 13:42:58 -0500 2508 2509 Deal with systems where time_t is unsigned. 2510 2511 2512 Release code2004h - 2004-12-07 11:40:18 -0500 2513 2514 64-bit-time_t changes 2515 2516 2517 Release 2004g - 2004-11-02 09:06:01 -0500 2518 2519 update to Cuba (taking effect this weekend) 2520 2521 other changes by Paul Eggert 2522 2523 correction of the spelling of Oslo 2524 2525 changed versions of difftime.c and private.h 2526 2527 2528 Release code2004f - 2004-10-21 10:25:22 -0400 2529 2530 Cope with wide-ranging tm_year values. 2531 2532 2533 Release 2004e - 2004-10-11 14:47:21 -0400 2534 2535 Brazil/Argentina/Israel changes by Paul Eggert 2536 2537 changes to tz-link.htm by Paul 2538 2539 one small fix to Makefile 2540 2541 2542 Release 2004d - 2004-09-22 08:27:29 -0400 2543 2544 Avoid overflow problems when TM_YEAR_BASE is added to an integer. 2545 2546 2547 Release 2004c - 2004-08-11 12:06:26 -0400 2548 2549 asctime-related changes 2550 2551 (variants of) some of the documentation changes suggested by Paul Eggert 2552 2553 2554 Release 2004b - 2004-07-19 14:33:35 -0400 2555 2556 data changes by Paul Eggert - most importantly, updates for Argentina 2557 2558 2559 Release 2004a - 2004-05-27 12:00:47 -0400 2560 2561 changes by Paul Eggert 2562 2563 Handle DST transitions that occur at the end of a month in some 2564 years but at the start of the following month in other years. 2565 2566 Add a copy of the correspondence that's the basis for claims about 2567 DST in the Navajo Nation. 2568 2569 2570 Release 2003e - 2003-12-15 09:36:47 -0500 2571 2572 changes by Arthur David Olson (primarily code changes) 2573 2574 changes by Paul Eggert (primarily data changes) 2575 2576 minor changes to "Makefile" and "northamerica" (in the latter case, 2577 optimization of the "Toronto" rules) 2578 2579 2580 Release 2003d - 2003-10-06 09:34:44 -0400 2581 2582 changes by Paul Eggert 2583 2584 2585 Release 2003c - 2003-09-16 10:47:05 -0400 2586 2587 Fix bad returns in zic.c's inleap function. 2588 Thanks to Bradley White for catching the problem! 2589 2590 2591 Release 2003b - 2003-09-16 07:13:44 -0400 2592 2593 Add a "--version" option (and documentation) to the zic and zdump commands. 2594 2595 changes to overflow/underflow checking in zic 2596 2597 a localtime typo fix. 2598 2599 Update the leapseconds and tz-art.htm files. 2600 2601 2602 Release 2003a - 2003-03-24 09:30:54 -0500 2603 2604 changes by Paul Eggert 2605 2606 a few additions and modifications to the tz-art.htm file 2607 2608 2609 Release 2002d - 2002-10-15 13:12:42 -0400 2610 2611 changes by Paul Eggert, less the "Britain (UK)" change in iso3166.tab 2612 2613 There's also a new time zone quote in "tz-art.htm". 2614 2615 2616 Release 2002c - 2002-04-04 11:55:20 -0500 2617 2618 changes by Paul Eggert 2619 2620 Change zic.c to avoid creating symlinks to files that don't exist. 2621 2622 2623 Release 2002b - 2002-01-28 12:56:03 -0500 2624 2625 [These change notes are for Release 2002a, which was corrupted. 2626 2002b was a corrected version of 2002a.] 2627 2628 changes by Paul Eggert 2629 2630 Update the "leapseconds" file to note that there'll be no leap 2631 second at the end of June, 2002. 2632 2633 Change "zic.c" to deal with a problem in handling the "Asia/Bishkek" zone. 2634 2635 Change to "difftime.c" to avoid sizeof problems. 2636 2637 2638 Release 2001d - 2001-10-09 13:31:32 -0400 2639 2640 changes by Paul Eggert 2641 2642 2643 Release 2001c - 2001-06-05 13:59:55 -0400 2644 2645 changes by Paul Eggert and Andrew Brown 2646 2647 2648 Release 2001b - 2001-04-05 16:44:38 -0400 2649 2650 changes by Paul Eggert (modulo jnorgard's typo fix) 2651 2652 tz-art.htm has been HTMLified. 2653 2654 2655 Release 2001a - 2001-03-13 12:57:44 -0500 2656 2657 changes by Paul Eggert 2658 2659 An addition to the "leapseconds" file: comments with the text of the 2660 latest IERS leap second notice. 2661 2662 Trailing white space has been removed from data file lines, and 2663 repeated spaces in "Rule Jordan" lines in the "asia" file have been 2664 converted to tabs. 2665 2666 2667 Release 2000h - 2000-12-14 15:33:38 -0500 2668 2669 changes by Paul Eggert 2670 2671 one typo fix in the "art" file 2672 2673 With providence, this is the last update of the millennium. 2674 2675 2676 Release 2000g - 2000-10-10 11:35:22 -0400 2677 2678 changes by Paul Eggert 2679 2680 correction of John Mackin's name submitted by Robert Elz 2681 2682 Garry Shandling's Daylight Saving Time joke (!?!) from the recent 2683 Emmy Awards broadcast. 2684 2685 2686 Release 2000f - 2000-08-10 09:31:58 -0400 2687 2688 changes by Paul Eggert 2689 2690 Added information in "tz-art.htm" on a Seinfeld reference to DST. 2691 2692 Error checking and messages in the "yearistype" script have been 2693 improved. 2694 2695 2696 Release 2000e - 2000-07-31 09:27:54 -0400 2697 2698 data changes by Paul Eggert 2699 2700 a change to the default value of the defined constant HAVE_STRERROR 2701 2702 the addition of a Dave Barry quote on DST to the tz-arts file 2703 2704 2705 Release 2000d - 2000-04-20 15:43:04 -0400 2706 2707 changes to the documentation and code of strftime for C99 conformance 2708 2709 a bug fix for date.c 2710 2711 These are based on (though modified from) changes by Paul Eggert. 2712 2713 2714 Release 2000c - 2000-03-04 10:31:43 -0500 2715 2716 changes by Paul Eggert 2717 2718 2719 Release 2000b - 2000-02-21 12:16:29 -0500 2720 2721 changes by Paul Eggert and Joseph Myers 2722 2723 modest tweaks to the tz-art.htm and tz-link.htm files 2724 2725 2726 Release 2000a - 2000-01-18 09:21:26 -0500 2727 2728 changes by Paul Eggert 2729 2730 The two hypertext documents have also been renamed. 2731 2732 2733 Release code1999i-data1999j - 1999-11-15 18:43:22 -0500 2734 2735 Paul Eggert's changes 2736 2737 additions to the "zic" manual page and the "Arts.htm" file 2738 2739 2740 Release code1999h-data1999i - 1999-11-08 14:55:21 -0500 2741 2742 [not summarized] 2743 2744 2745 Release data1999h - 1999-10-07 03:50:29 -0400 2746 2747 changes by Paul Eggert to "europe" (most importantly, fixing 2748 Lithuania and Estonia) 2749 2750 2751 Release 1999g - 1999-09-28 11:06:18 -0400 2752 2753 data changes by Paul Eggert (most importantly, the change for 2754 Lebanon that buys correctness for this coming Sunday) 2755 2756 The "code" file contains changes to "Makefile" and "checktab.awk" to 2757 allow better checking of time zone files before they are published. 2758 2759 2760 Release 1999f - 1999-09-23 09:48:14 -0400 2761 2762 changes by Arthur David Olson and Paul Eggert 2763 2764 2765 Release 1999e - 1999-08-17 15:20:54 -0400 2766 2767 changes circulated by Paul Eggert, although the change to handling 2768 of DST-specifying time zone names has been commented out for now 2769 (search for "XXX" in "localtime.c" for details). These files also 2770 do not make any changes to the start of DST in Brazil. 2771 2772 In addition to Paul's changes, there are updates to "Arts.htm" and 2773 cleanups of URLs. 2774 2775 2776 Release 1999d - 1999-03-30 11:31:07 -0500 2777 2778 changes by Paul Eggert 2779 2780 The Makefile's "make public" rule has also been changed to do a test 2781 compile of each individual time zone data file (which should help 2782 avoid problems such as the one we had with Nicosia). 2783 2784 2785 Release 1999c - 1999-03-25 09:47:47 -0500 2786 2787 changes by Paul Eggert, most importantly the change for Chile. 2788 2789 2790 Release 1999b - 1999-02-01 17:51:44 -0500 2791 2792 changes by Paul Eggert 2793 2794 code changes (suggested by Mani Varadarajan, mani at be.com) for 2795 correct handling of symbolic links when building using a relative directory 2796 2797 code changes to generate correct messages for failed links 2798 2799 updates to the URLs in Arts.htm 2800 2801 2802 Release 1999a - 1999-01-19 16:20:29 -0500 2803 2804 error message internationalizations and corrections in zic.c and 2805 zdump.c (as suggested by Vladimir Michl, vladimir.michl at upol.cz, 2806 to whom thanks!) 2807 2808 2809 Release code1998h-data1998i - 1998-10-01 09:56:10 -0400 2810 2811 changes for Brazil, Chile, and Germany 2812 2813 support for use of "24:00" in the input files for the time zone compiler 2814 2815 2816 Release code1998g-data1998h - 1998-09-24 10:50:28 -0400 2817 2818 changes by Paul Eggert 2819 2820 correction to a define in the "private.h" file 2821 2822 2823 Release data1998g - 1998-08-11 03:28:35 -0000 2824 [tzdata1998g.tar.gz is missing!] 2825 2826 Lithuanian change provided by mgedmin at pub.osf.it 2827 2828 Move creation of the GMT link with Etc/GMT to "etcetera" (from 2829 "backward") to ensure that the GMT file is created even where folks 2830 don't want the "backward" links (as suggested by Paul Eggert). 2831 2832 2833 Release data1998f - 1998-07-20 13:50:00 -0000 2834 [tzdata1998f.tar.gz is missing!] 2835 2836 Update the "leapseconds" file to include the newly-announced 2837 insertion at the end of 1998. 2838 2839 2840 Release code1998f - 1998-06-01 10:18:31 -0400 2841 2842 addition to localtime.c by Guy Harris 2843 2844 2845 Release 1998e - 1998-05-28 09:56:26 -0400 2846 2847 The Makefile is changed to produce zoneinfo-posix rather than 2848 zoneinfo/posix, and to produce zoneinfo-leaps rather than 2849 zoneinfo/right. 2850 2851 data changes by Paul Eggert 2852 2853 changes from Guy Harris to provide asctime_r and ctime_r 2854 2855 A usno1998 file (substantially identical to usno1997) has been added. 2856 2857 2858 Release 1998d - 1998-05-14 11:58:34 -0400 2859 2860 changes to comments (in particular, elimination of references to CIA maps). 2861 "Arts.htm", "WWW.htm", "asia", and "australasia" are the only places 2862 where changes occur. 2863 2864 2865 Release 1998c - 1998-02-28 12:32:26 -0500 2866 2867 changes by Paul Eggert (save the "French correction," on which I'll 2868 wait for the dust to settle) 2869 2870 symlink changes 2871 2872 changes and additions to Arts.htm 2873 2874 2875 Release 1998b - 1998-01-17 14:31:51 -0500 2876 2877 URL cleanups and additions 2878 2879 2880 Release 1998a - 1998-01-13 12:37:35 -0500 2881 2882 changes by Paul Eggert 2883 2884 2885 Release code1997i-data1997k - 1997-12-29 09:53:41 -0500 2886 2887 changes by Paul Eggert, with minor modifications from Arthur David 2888 Olson to make the files more browser friendly 2889 2890 2891 Release code1997h-data1997j - 1997-12-18 17:47:35 -0500 2892 2893 minor changes to put "TZif" at the start of each time zone information file 2894 2895 a rule has also been added to the Makefile so you can 2896 make zones 2897 to just recompile the zone information files (rather than doing a 2898 full "make install" with its other effects). 2899 2900 2901 Release data1997i - 1997-10-07 08:45:38 -0400 2902 2903 changes to Africa by Paul Eggert 2904 2905 2906 Release code1997g-data1997h - 1997-09-04 16:56:54 -0400 2907 2908 corrections for Uruguay (and other locations) 2909 2910 Arthur David Olson's simple-minded fix allowing mktime to both 2911 correctly handle leap seconds and correctly handle tm_sec values 2912 upon which arithmetic has been performed. 2913 2914 2915 Release code1997f-data1997g - 1997-07-19 13:15:02 -0400 2916 2917 Paul Eggert's updates 2918 2919 a small change to a function prototype; 2920 2921 "Music" has been renamed "Arts.htm", HTMLified, and augmented to 2922 include information on Around the World in Eighty Days. 2923 2924 2925 Release code1997e-data1997f - 1997-05-03 18:52:34 -0400 2926 2927 fixes to zic's error handling 2928 2929 changes inspired by the item circulated on Slovenia 2930 2931 The description of Web resources has been HTMLified for browsing 2932 convenience. 2933 2934 A new piece of tz-related music has been added to the "Music" file. 2935 2936 2937 Release code1997d-data1997e - 1997-03-29 12:48:52 -0500 2938 2939 Paul Eggert's latest suggestions 2940 2941 2942 Release code1997c-data1997d - 1997-03-07 20:37:54 -0500 2943 2944 changes to "zic.c" to correct performance of the "-s" option 2945 2946 a new file "usno1997" 2947 2948 2949 Release data1997c - 1997-03-04 09:58:18 -0500 2950 2951 changes in Israel 2952 2953 2954 Release 1997b - 1997-02-27 18:34:19 -0500 2955 2956 The data file incorporates the 1997 leap second. 2957 2958 The code file incorporates Arthur David Olson's take on the 2959 zic/multiprocessor/directory-creation situation. 2960 2961 2962 Release 1997a - 1997-01-21 09:11:10 -0500 2963 2964 Paul Eggert's Antarctica (and other changes) 2965 2966 Arthur David Olson finessed the "getopt" issue by checking against 2967 both -1 and EOF (regardless of POSIX, SunOS 4.1.1's manual says -1 2968 is returned while SunOS 5.5's manual says EOF is returned). 2969 2970 2971 Release code1996o-data1996n - 1996-12-27 21:42:05 -0500 2972 2973 Paul Eggert's latest changes 2974 2975 2976 Release code1996n - 1996-12-16 09:42:02 -0500 2977 2978 link snapping fix from Bruce Evans (via Garrett Wollman) 2979 2980 2981 Release data1996m - 1996-11-24 02:37:34 -0000 2982 [tzdata1996m.tar.gz is missing!] 2983 2984 Paul Eggert's batch of changes 2985 2986 2987 Release code1996m-data1996l - 1996-11-05 14:00:12 -0500 2988 2989 No functional changes here; the files have simply been changed to 2990 make more use of ISO style dates in comments. The names of the above 2991 files now include the year in full. 2992 2993 2994 Release code96l - 1996-09-08 17:12:20 -0400 2995 2996 tzcode96k was missing a couple of pieces. 2997 2998 2999 Release 96k - 1996-09-08 16:06:22 -0400 3000 3001 the latest round of changes from Paul Eggert 3002 3003 the recent Year 2000 material 3004 3005 3006 Release code96j - 1996-07-30 13:18:53 -0400 3007 3008 Set sp->typecnt as suggested by Timothy Patrick Murphy. 3009 3010 3011 Release code96i - 1996-07-27 20:11:35 -0400 3012 3013 Paul's suggested patch for strftime %V week numbers 3014 3015 3016 Release data96i - 1996-07-01 18:13:04 -0400 3017 3018 "northamerica" and "europe" changes by Paul Eggert 3019 3020 3021 Release code96h - 1996-06-05 08:02:21 -0400 3022 3023 fix for handling transitions specified in Universal Time 3024 3025 Some "public domain" notices have also been added. 3026 3027 3028 Release code96g - 1996-05-16 14:00:26 -0400 3029 3030 fix for the simultaneous-DST-and-zone-change challenge 3031 3032 3033 Release data96h - 1996-05-09 17:40:51 -0400 3034 3035 changes by Paul Eggert 3036 3037 3038 Release code96f-data96g - 1996-05-03 03:09:59 -0000 3039 [tzcode96f.tar.gz + tzdata96g.tar.gz are both missing!] 3040 3041 The changes get us some of the way to fixing the problems noted in Paul 3042 Eggert's letter yesterday (in addition to a few others). The approach 3043 has been to make zic a bit smarter about figuring out what time zone 3044 abbreviations apply just after the time specified in the "UNTIL" part 3045 of a zone line. Putting the smarts in zic means avoiding having 3046 transition times show up in both "Zone" lines and "Rule" lines, which 3047 in turn avoids multiple transition time entries in time zone files. 3048 (This also makes the zic input files such as "europe" a bit shorter and 3049 should ease maintenance.) 3050 3051 3052 Release data96f - 1996-04-19 19:20:03 -0000 3053 [tzdata96f.tar.gz is missing!] 3054 3055 The only changes are to the "northamerica" file; the time zone 3056 abbreviation for Denver is corrected to MST (and MDT), and the 3057 comments for Mexico have been updated. 3058 3059 3060 Release data96e - 1996-03-19 17:37:26 -0500 3061 3062 Proposals by Paul Eggert, in particular the Portugal change that 3063 comes into play at the end of this month. 3064 3065 3066 Release data96d - 1996-03-18 20:49:39 -0500 3067 3068 [not summarized] 3069 3070 3071 Release code96e - 1996-02-29 15:43:27 -0000 3072 [tzcode96e.tar.gz is missing!] 3073 3074 internationalization changes and the fix to the documentation for strftime 3075 3076 3077 Release code96d-data96c - 1996-02-12 11:05:27 -0500 3078 3079 The "code" file simply updates Bob Kridle's electronic address. 3080 3081 The "data" file updates rules for Mexico. 3082 3083 3084 Release data96b - 1996-01-27 15:44:42 -0500 3085 3086 Kiribati change 3087 3088 3089 Release code96c - 1996-01-16 16:58:15 -0500 3090 3091 leap-year streamlining and binary-search changes 3092 3093 fix to newctime.3 3094 3095 3096 Release code96b - 1996-01-10 20:42:39 -0500 3097 3098 fixes and enhancements from Paul Eggert, including code that 3099 emulates the behavior of recent versions of the SunOS "date" 3100 command. 3101 3102 3103 Release 96a - 1996-01-06 09:08:24 -0500 3104 3105 Israel updates 3106 3107 fixes to strftime.c for correct ISO 8601 week number generation, 3108 plus support for two new formats ('G' and 'g') to give ISO 8601 year 3109 numbers (which are not necessarily the same as calendar year numbers) 3110 3111 3112 Release code95i-data95m - 1995-12-21 12:46:47 -0500 3113 3114 The latest revisions from Paul Eggert are included, the usno1995 3115 file has been updated, and a new file ("WWW") covering useful URLs 3116 has been added. 3117 3118 3119 Release code95h-data95l - 1995-12-19 18:10:12 -0500 3120 3121 A simplification of a macro definition, a change to data for Sudan, 3122 and (for last minute shoppers) notes in the "Music" file on the CD 3123 "Old Man Time". 3124 3125 3126 Release code95g-data95k - 1995-10-30 10:32:47 -0500 3127 3128 (slightly reformatted) 8-bit-clean proposed patch 3129 3130 minor patch: US/Eastern -> America/New_York 3131 3132 snapshot of the USNO's latest data ("usno1995") 3133 3134 some other minor cleanups 3135 3136 3137 Release code95f-data95j - 1995-10-28 21:01:34 -0000 3138 [tzcode95f.tar.gz + tzdata95j.tar.gz are both missing!] 3139 3140 European cleanups 3141 3142 support for 64-bit time_t's 3143 3144 optimization in localtime.c 3145 3146 3147 Release code95e - 1995-10-13 13:23:57 -0400 3148 3149 the mktime change to scan from future to past when trying to find time zone 3150 offsets 3151 3152 3153 Release data95i - 1995-09-26 10:43:26 -0400 3154 3155 For Canada/Central, guess that the Sun customer's "one week too 3156 early" was just a approximation, and the true error is one month 3157 too early. This is consistent with the rest of Canada. 3158 3159 3160 Release data95h - 1995-09-21 11:26:48 -0400 3161 3162 latest changes from Paul Eggert 3163 3164 3165 Release code95d - 1995-09-14 11:14:45 -0400 3166 3167 the addition of a "Music" file, which documents four recorded 3168 versions of the tune "Save That Time". 3169 3170 3171 Release data95g - 1995-09-01 17:21:36 -0400 3172 3173 "yearistype" correction 3174 3175 3176 Release data95f - 1995-08-28 20:46:56 -0400 3177 3178 Paul Eggert's change to the australasia file 3179 3180 3181 Release data95e - 1995-07-08 18:02:34 -0400 3182 3183 The only change is a leap second at the end of this year. 3184 Thanks to Bradley White for forwarding news on the leap second. 3185 3186 3187 Release data95d - 1995-07-03 13:26:22 -0400 3188 3189 Paul Eggert's changes 3190 3191 3192 Release data95c - 1995-07-02 19:19:28 -0400 3193 3194 changes to "asia", "backward", "europe", and "southamerica" 3195 (read: northamericacentrics need not apply) 3196 3197 3198 Release code95c - 1995-03-13 14:00:46 -0500 3199 3200 one-line fix for sign extension problems in detzcode 3201 3202 3203 Release 95b - 1995-03-04 11:22:38 -0500 3204 3205 Minor changes in both: 3206 3207 The "code" file contains a workaround for the lack of "unistd.h" in 3208 Microsoft C++ version 7. 3209 3210 The "data" file contains a fixed "Link" for America/Shiprock. 3211 3212 3213 Release 94h - 1994-12-10 12:51:14 -0500 3214 3215 The files: 3216 3217 * incorporate the changes to "zdump" and "date" to make changes to 3218 the "TZ" environment variable permanent; 3219 3220 * incorporate the table changes by Paul Eggert; 3221 3222 * include (and document) support for universal time specifications in 3223 data files - but do not (yet) include use of this feature in the 3224 data files. 3225 3226 Think of this as "TZ Classic" - the software has been set up not to break if 3227 universal time shows up in its input, and data entries have been 3228 left as is so as not to break existing implementations. 3229 3230 3231 Release data94f - 1994-08-20 12:56:09 -0400 3232 3233 (with thanks!) the latest data updates from Paul Eggert 3234 3235 3236 Release data94e - 1994-06-04 13:13:53 -0400 3237 3238 [not summarized] 3239 3240 3241 Release code94g - 1994-05-05 12:14:07 -0400 3242 3243 fix missing "optind.c" and a reference to it in the Makefile 3244 3245 3246 Release code94f - 1994-05-05 13:00:33 -0000 3247 [tzcode94f.tar.gz is missing!] 3248 3249 changes to avoid overflow in difftime, as well as changes to cope 3250 with the 52/53 challenge in strftime 3251 3252 3253 Release code94e - 1994-03-30 23:32:59 -0500 3254 3255 change for the benefit of PCTS 3256 3257 3258 Release 94d - 1994-02-24 15:42:25 -0500 3259 3260 Avoid clashes with POSIX semantics for zones such as GMT+4. 3261 3262 Some other very minor housekeeping is also present. 3263 3264 3265 Release code94c - 1994-02-10 08:52:40 -0500 3266 3267 Fix bug where mkdirs was broken unless you compile with 3268 -fwritable-strings (which is generally losing to do). 3269 3270 3271 Release 94b - 1994-02-07 10:04:33 -0500 3272 3273 work by Paul Eggert who notes: 3274 3275 I found another book of time zone histories by E W Whitman; it's not 3276 as extensive as Shanks but has a few goodies of its own. I used it 3277 to update the tables. I also fixed some more as a result of 3278 correspondence with Adam David and Peter Ilieve, and move some stray 3279 links from 'europe' to 'backward'. I corrected some scanning errors 3280 in usno1989. 3281 3282 As far as the code goes, I fixed zic to allow years in the range 3283 INT_MIN to INT_MAX; this fixed a few boundary conditions around 1900. 3284 And I cleaned up the zic documentation a little bit. 3285 3286 3287 Release data94a - 1994-02-03 08:58:54 -0500 3288 3289 It simply incorporates the recently announced leap second into the 3290 "leapseconds" file. 3291 3292 3293 Release 93g - 1993-11-22 17:28:27 -0500 3294 3295 Paul Eggert has provided a good deal of historic information (based 3296 on Shanks), and there are some code changes to deal with the buglets 3297 that crawled out in dealing with the new information. 3298 3299 3300 Release 93f - 1993-10-15 12:27:46 -0400 3301 3302 Paul Eggert's changes 3303 3304 3305 Release 93e - 1993-09-05 21:21:44 -0400 3306 3307 This has updated data for Israel, England, and Kwajalein. There's 3308 also an update to "zdump" to cope with Kwajalein's 24-hour jump. 3309 Thanks to Paul Eggert and Peter Ilieve for the changes. 3310 3311 3312 Release 93d - 1993-06-17 23:34:17 -0400 3313 3314 new fix and new data on Israel 3315 3316 3317 Release 93c - 1993-06-06 19:31:55 -0400 3318 3319 [not summarized] 3320 3321 3322 Release 93b - 1993-02-02 14:53:58 -0500 3323 3324 updated "leapseconds" file 3325 3326 3327 Release 93 - 1993-01-08 07:01:06 -0500 3328 3329 At kre's suggestion, the package has been split in two - a code piece 3330 (which also includes documentation) that's only of use to folks who 3331 want to recompile things and a data piece useful to anyone who can 3332 run "zic". 3333 3334 The new version has a few changes to the data files, a few 3335 portability changes, and an off-by-one fix (with thanks to 3336 Tom Karzes at deshaw.com for providing a description and a 3337 solution). 3338 3339 3340 Release 92c - 1992-11-21 17:35:36 -0000 3341 [tz92c.tar.Z is missing!] 3342 3343 The fallout from the latest round of DST transitions. 3344 3345 There are changes for Portugal, Saskatchewan, and "Pacific-New"; 3346 there's also a change to "zic.c" that makes it portable to more systems. 3347 3348 3349 Release 92 - 1992-04-25 18:17:03 -0000 3350 [tz92.tar.Z is missing!] 3351 3352 By popular demand (well, at any rate, following a request by kre at munnari) 3353 3354 3355 The 1989 update of the time zone package featured: 3356 3357 * POSIXization (including interpretation of POSIX-style TZ environment 3358 variables, provided by Guy Harris), 3359 * ANSIfication (including versions of "mktime" and "difftime"), 3360 * SVIDulation (an "altzone" variable) 3361 * MACHination (the "gtime" function) 3362 * corrections to some time zone data (including corrections to the rules 3363 for Great Britain and New Zealand) 3364 * reference data from the United States Naval Observatory for folks who 3365 want to do additional time zones 3366 * and the 1989 data for Saudi Arabia. 3367 3368 (Since this code will be treated as "part of the implementation" in some 3369 places and as "part of the application" in others, there's no good way to 3370 name functions, such as timegm, that are not part of the proposed ANSI C 3371 standard; such functions have kept their old, underscore-free names in this 3372 update.) 3373 3374 And the "dysize" function has disappeared; it was present to allow 3375 compilation of the "date" command on old BSD systems, and a version of "date" 3376 is now provided in the package. The "date" command is not created when you 3377 "make all" since it may lack options provided by the version distributed with 3378 your operating system, or may not interact with the system in the same way 3379 the native version does. 3380 3381 Since POSIX frowns on correct leap second handling, the default behavior of 3382 the "zic" command (in the absence of a "-L" option) has been changed to omit 3383 leap second information from its output files. 3384 3385 3386 ----- 3387 Notes 3388 3389 This file contains copies of the part of each release announcement 3390 that talks about the changes in that release. The text has been 3391 adapted and reformatted for the purposes of this file. 3392 3393 Typically a release R consists of a pair of tarball files, 3394 tzcodeR.tar.gz and tzdataR.tar.gz. However, some releases (e.g., 3395 code2010a, data2012c) consist of just one or the other tarball, and a 3396 few (e.g., code2012c-data2012d) have tarballs with mixed version 3397 numbers. 3398 3399 Release time stamps are taken from the release's commit (for newer, 3400 git releases), from the newest file in the tarball (for older 3401 releases, where this info is available) or from the email announcing 3402 the release (if all else fails; these are marked with a time zone of 3403 -0000 and an "is missing!" comment). 3404 3405 Earlier versions of the code and data were not announced on the tz 3406 list and are not summarized here. 3407 3408 This file is in the public domain. 3409 3410 Local Variables: 3411 coding: utf-8 3412 End: 3413
Indexes created Mon Sep 29 21:09:56 GMT 2025