- tz-announce - lists.iana.org

2023a release of tz code and data available
by Paul Eggert March 22, 2023

March 22, 2023

The 2023a release of the tz code and data is available. This release contains the following changes: Briefly: Egypt now uses DST again, from April through October. This year Morocco springs forward April 23, not April 30. Palestine delays the start of DST this year. Much of Greenland still uses DST from 2024 on. America/Yellowknife now links to America/Edmonton. tzselect can now use current time to help infer timezone. The code now defaults to C99 or later. Fix use of C23 attributes. Changes to future timestamps Starting in 2023, Egypt will observe DST from April's last Friday through October's last Thursday. (Thanks to Ahmad ElDardiry.) Assume the transition times are 00:00 and 24:00, respectively. In 2023 Morocco's spring-forward transition after Ramadan will occur April 23, not April 30. (Thanks to Milamber.) Adjust predictions for future years accordingly. This affects predictions for 2023, 2031, 2038, and later years. This year Palestine will delay its spring forward from March 25 to April 29 due to Ramadan. (Thanks to Heba Hamad.) Make guesses for future Ramadans too. Much of Greenland, represented by America/Nuuk, will continue to observe DST using European Union rules. When combined with Greenland's decision not to change the clocks in fall 2023, America/Nuuk therefore changes from -03/-02 to -02/-01 effective 2023-10-29 at 01:00 UTC. (Thanks to Thomas M. Steenholdt.) This change from 2022g doesn't affect timestamps until 2024-03-30, and doesn't affect tm_isdst until 2023-03-25. Changes to past timestamps America/Yellowknife has changed from a Zone to a backward compatibility Link, as it no longer differs from America/Edmonton since 1970. (Thanks to Almaz Mingaleev.) This affects some pre-1948 timestamps. The old data are now in 'backzone'. Changes to past time zone abbreviations When observing Moscow time, Europe/Kirov and Europe/Volgograd now use the abbreviations MSK/MSD instead of numeric abbreviations, for consistency with other timezones observing Moscow time. Changes to code You can now tell tzselect local time, to simplify later choices. Select the 'time' option in its first prompt. You can now compile with -DTZNAME_MAXIMUM=N to limit time zone abbreviations to N bytes (default 255). The reference runtime library now rejects POSIX-style TZ strings that contain longer abbreviations, treating them as UTC. Previously the limit was platform dependent and abbreviations were silently truncated to 16 bytes even when the limit was greater than 16. The code by default is now designed for C99 or later. To build in a C89 environment, compile with -DPORT_TO_C89. To support C89 callers of the tzcode library, compile with -DSUPPORT_C89. The two new macros are transitional aids planned to be removed in a future version, when C99 or later will be required. The code now builds again on pre-C99 platforms, if you compile with -DPORT_TO_C89. This fixes a bug introduced in 2022f. On C23-compatible platforms tzcode no longer uses syntax like 'static [[noreturn]] void usage(void);'. Instead, it uses '[[noreturn]] static void usage(void);' as strict C23 requires. (Problem reported by Houge Langley.) The code's functions now constrain their arguments with the C 'restrict' keyword consistently with their documentation. This may allow future optimizations. zdump again builds standalone with ckdadd and without setenv, fixing a bug introduced in 2022g. (Problem reported by panic.) leapseconds.awk can now process a leap seconds file that never expires; this might be useful if leap seconds are discontinued. Changes to commentary tz-link.html has a new section "Coordinating with governments and distributors". (Thanks to Neil Fuller for some of the text.) To improve tzselect diagnostics, zone1970.tab's comments column is now limited to countries that have multiple timezones. Note that leap seconds are planned to be discontinued by 2035. Here are links to the release files: https://www.iana.org/time-zones/repository/releases/tzcode2023a.tar.gz https://www.iana.org/time-zones/repository/releases/tzdata2023a.tar.gz https://www.iana.org/time-zones/repository/releases/tzdb-2023a.tar.lz The following convenience links are also available, although they may point to the previous release until the relevant caches are refreshed: https://www.iana.org/time-zones/repository/tzcode-latest.tar.gz https://www.iana.org/time-zones/repository/tzdata-latest.tar.gz https://www.iana.org/time-zones/repository/tzdb-latest.tar.lz Links are also available via plain HTTP, and via FTP from ftp://ftp.iana.org/tz/releases with the same basenames as above. Each release file has a GPG signature, which can be retrieved by appending ".asc" to the above URLs. Copies of these signatures are appended to this message. This release corresponds to commit f24b84a13556c12441dd55c323f9a8fd3b6fbbee dated 2023-03-22 12:39:33 -0700 and tagged '2023a' in the development GitHub repository at <https://github.com/eggert/tz>. Here are the SHA-512 checksums for the release files: d45fc677a0a32ae807bf421faceff675565ee15e3ff42d3a4121df10e1f7855ac16b27fbc28bd365f93c57f40c5bdf19cde88546f7090cfab7676cac0a5516a4 tzcode2023a.tar.gz 10aadd6eba50f63f427399281065ba34cb474f6a854f8dc7a6f4f1343b1474a05f22b69b1e113ea67bb5f3f479253610a16b89d9dfa157bf0fde4c69aa3d6493 tzdata2023a.tar.gz 8e959f6cad84e9481ed5a6efcc8d7126d41fadfdc860715fea87fb15f7dcfdbc4c9d49828df2945ee9304dbdd3370c5b5048c62637bdd4f4962830ba101008bd tzdb-2023a.tar.lz Here are GPG digital signatures for the release files: -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEfjeSqdis99YzvBWI7ZfpDmKqfjQFAmQbXA8ACgkQ7ZfpDmKq fjSDXRAAjfD1GMYAFHDvXOlCCitgTsTjBBuPHPbrQ7gTWno9uX8bvss3aXCUslHv sfzCHMKhJqMXGLzSQQ5jEP/k4fOjNJyIQbVlrY9XljpdGeOdYa1E0zr95dIf4/ta NUY9XxzFnd3hwQuc6LY77MOv2Xyy/5RAGajD2DTpYTLjE0ffMFK371efs//GcLqe aCIWBdet1rJyih6CoyzfNvl6QHQOxZLSlE2E3DYu430fTi/UhmTcaATW8gRNulL5 kXamzD9l45/cGOx/jHP6CkJIqFTFV4W1/W/VyjIEgRE0KGbuQO3LV0avohjhmmwm hS6H6RJYfgeF+vwmo3unN+vUwPLhkPUiz2NO/Uf0n22AVQlUOrEP0XVXYW8aRd3H ewDrlvDCMkvmKqEb8k0jqbmjqTgeblKoqeS7gIShhVmrIli8oN4mguWg5WaeRWF/ l3uYtBXOg/DJMwENrB+4u0+PRWuR2T5OW/E4NvaKIu58qzozP7WEmlEwv9KWZB+z ffmNaVgXqSCz50K6gvhoDKLn5YBgpB9kXDd+YrcqPUAyD0sDWhBC2Hx9HHePOfQl dFB+ijja5HB8aZD/rX0iLrSwp/Ndt4l2QjXY9SMjTiWx4SgGGmGCANQqCDZGD31a C8bdEMH4qQeOPZ/NsPB6KaJsqALNroF07YeINu0YfWkw89ZF/r4= =mRAo -----END PGP SIGNATURE----- -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEfjeSqdis99YzvBWI7ZfpDmKqfjQFAmQbXA8ACgkQ7ZfpDmKq fjRngg/8D8E5sJIt412pmR7yIQYnsG44nSiELNpiewG+SF4DofW7quQDQEjDMdVn seLU9okE1/l+1SN6eibMJgvho/6HWkU9kWLzYCY29sljTVYqEu6vLo1IY1OJIkjC 9yieL33oLkN4LIeSMzR4QOCkRfusYNRYq3uryVtMu7R6HP2PgMlmmJf/imV192tj ONJXNA4Y30EvJ3lHuXMbr7fNg9hXSLjRy1NPKjp5OVZ3jZVXPljrC+egAfhLjZdQ uB5a3uGjAX+KjemCHwTmrrmmcUlaHxFxlfN5gX5cNIXuyrYtz0PAhy+MhBM5F9iY erYWg6EfBr7IfSyS1JcDZ1ypwZ66EpKxXfWZNm+HFA4dDdnWgvlM4n1OyKjw03Dq 4/agYr34cUDhfBUS57dtpZSibtdpbh8oiqxc+wXV3KZcHXVpX3XRyGTH1UVINfnF nXArC09JKUt7Tjol83TPH0jDXJAxabkgUDJHfpeQ5A8r3GNW1PQ/OF25ieRb+AFQ jWFbiEIxSXmUwnRc6wHiLX/gU0TT7vVMokN5erx9IGwrDEQAljuEJoj2bYFT/q9D 8jFA+48r/nK2r33+OBrz6aryoMNptquuMG0XR4aSr6KO3e622+vuF4nSN7hg2sAM /bMLSlzOGUEmOZ2D7hP5MDdWw5L0WQAjX7/8xKzdlMhqkx4Mc9Q= =OxWX -----END PGP SIGNATURE----- -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEfjeSqdis99YzvBWI7ZfpDmKqfjQFAmQbXBAACgkQ7ZfpDmKq fjQJaQ//aj78DFo7hiHX7VNnyEIKdddIApk6PKN6XkfCxVyXDxztE9w4Bf8LhYR2 hw0TFDtaIDpW0tb6OTQ/r/I2xMmeYKT52YPKL6KtKmc8tmzM4DiBT0CT/c//nxSl elxnuRI1wPbvP21XjuqbKBztN7ID1KC6YAs78045Cek+1K1lx5z9QcnYNLGIBwn3 EP4zi3qkMKQRKuT07ESQy4+y7hezPy9CPZMObmQ/v4nmUk0OIvbHGBK0TAc8D6kI Tsv1mAk4FHnbpbtpdXwfGDGpYfBs8giMHH6M+ZGdaT452hKrOwCgrvzsGlOxsxDc Ht4iASO78OEjdA/5cEscYYdoxOQCcTeDQEfWYx5bNfCFNvUKzrs79Qs1GaQ9riXW zdRBjW0sKbKZUoM9ZPjtYxRfh8PrZY9qDoZ4orF/39jl3SkBYkCC8IsKtEEVUYm/ ELH930IXmJ49sVdl+9ROGgqGUPcaVfouZf/+qf8d6HSEolOgrXe9FkB9E42RLBXw ETO/yL0MHPRiJU8U2agRV3AMiJoxM07ZvH54BgAsSXl1vr7xaCMqy5B38R7U/Tmj Sp7pqvtKhUcqyLHRi073GZmdV3pFhRsfAgiXTpRdNTAyJpN+y6jO9pZg6YYEfb+w kql/6Gp76ffGQU1j3OnvmVnmS22a34WiBZ0iYsKhrU/sym3Pk88= =SZ+n -----END PGP SIGNATURE-----

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2022g release of tz code and data available
by Paul Eggert Nov. 29, 2022

Nov. 29, 2022

The 2022g release of the tz code and data is available. This release contains the following changes: Briefly: The northern edge of Chihuahua changes to US timekeeping. Much of Greenland stops changing clocks after March 2023. Fix some pre-1996 timestamps in northern Canada. C89 is now deprecated; please use C99 or later. Portability fixes for AIX, libintl, MS-Windows, musl, z/OS In C code, use more C23 features if available. C23 timegm now supported by default Fixes for unlikely integer overflows Changes to future timestamps In the Mexican state of Chihuahua, the border strip near the US will change to agree with nearby US locations on 2022-11-30. The strip's western part, represented by Ciudad Juárez, switches from -06 all year to -07/-06 with US DST rules, like El Paso, TX. The eastern part, represented by Ojinaga, will observe US DST next year, like Presidio, TX. (Thanks to Heitor David Pinto.) A new Zone America/Ciudad_Juarez splits from America/Ojinaga. Much of Greenland, represented by America/Nuuk, stops observing winter time after March 2023, so its daylight saving time becomes standard time. (Thanks to Jonas Nyrup and Jürgen Appel.) Changes to past timestamps Changes for pre-1996 northern Canada (thanks to Chris Walton): Merge America/Iqaluit and America/Pangnirtung into the former, with a backward compatibility link for the latter name. There is no good evidence the two locations differ since 1970. This change affects pre-1996 America/Pangnirtung timestamps. Cambridge Bay, Inuvik, Iqaluit, Rankin Inlet, Resolute and Yellowknife did not observe DST in 1965, and did observe DST from 1972 through 1979. Whitehorse moved from -09 to -08 on 1966-02-27, not 1967-05-28. Colombia's 1993 fallback was 02-06 24:00, not 04-04 00:00. (Thanks to Alois Treindl.) Singapore's 1981-12-31 change was at 16:00 UTC (23:30 local time), not 24:00 local time. (Thanks to Geoff Clare via Robert Elz.) Changes to code Although tzcode still works with C89, bugs found in recent routine maintenance indicate that bitrot has set in and that in practice C89 is no longer used to build tzcode. As it is a maintenance burden, support for C89 is planned to be removed soon. Instead, please use compilers compatible with C99, C11, C17, or C23. timegm, which tzcode implemented in 1989, will finally be standardized 34 years later as part of C23, so timegm is now supported even if STD_INSPIRED is not defined. Fix bug in zdump's tzalloc emulation on hosts that lack tm_zone. (Problem reported by Đoàn Trần Công Danh.) Fix bug in zic on hosts where malloc(0) yields NULL on success. (Problem reported by Tim McBrayer for AIX 6.1.) Fix zic configuration to avoid linkage failures on some platforms. (Problems reported by Gilmore Davidson and Igor Ivanov.) Work around MS-Windows nmake incompatibility with POSIX. (Problem reported by Manuela Friedrich.) Port mktime and strftime to debugging platforms where accessing uninitialized data has undefined behavior (strftime problem reported by Robert Elz). Check more carefully for unlikely integer overflows, preferring C23 <stdckdint.h> to overflow checking by hand, as the latter has had obscure bugs. Changes to build procedure New Makefile rule check_mild that skips checking whether Link lines are in the file 'backward'. (Inspired by a suggestion from Stephen Colebourne.) Here are links to the release files: https://www.iana.org/time-zones/repository/releases/tzcode2022g.tar.gz https://www.iana.org/time-zones/repository/releases/tzdata2022g.tar.gz https://www.iana.org/time-zones/repository/releases/tzdb-2022g.tar.lz The following convenience links are also available, although they may point to the previous release until the relevant caches are refreshed: https://www.iana.org/time-zones/repository/tzcode-latest.tar.gz https://www.iana.org/time-zones/repository/tzdata-latest.tar.gz https://www.iana.org/time-zones/repository/tzdb-latest.tar.lz Links are also available via plain HTTP, and via FTP from ftp://ftp.iana.org/tz/releases with the same basenames as above. Each release file has a GPG signature, which can be retrieved by appending ".asc" to the above URLs. Copies of these signatures are appended to this message. This release corresponds to commit 4e604e41115182c3ab1185bab4c888822511348e dated 2022-11-29 08:58:31 -0800 and tagged '2022g' in the development GitHub repository at <https://github.com/eggert/tz>. Here are the SHA-512 checksums for the release files: 5188edd8d05238a88da734cf78fadfb57640d4db3e7a0a9dddd70e3071e16b6eebc2e2ab17109b7dafafae68abfbc857df481cfdc3ffe63f7eb1569ea0b5997a tzcode2022g.tar.gz 7f79394295e00e3a24ebdbf9af3bc454a65f432a93b517e7e96c7f9db9949f6f5fdae9892a9d3789ff44ae0eb1bfe4744d36976b4624659af951d26414f94e65 tzdata2022g.tar.gz f471046189f519de5735ac2d8c3edb27cbe925247b06f44634e700e5e4453ec5f715d85256fc74d300bcdaa070a7600fcc054327f2dfe743ab3c0fe404ff83c1 tzdb-2022g.tar.lz Here are the GPG digital signatures for the release files: -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEfjeSqdis99YzvBWI7ZfpDmKqfjQFAmOGOvAACgkQ7ZfpDmKq fjSI4w/+PkVPCILI34+QeXIm6LLPhEPLxtb7q3rvfoBXk/qyottcPJvQXSAsqX/c Hus6lCNK0COyICVn48rf3ss+GNxLev/ZTMVLUBkH8WrgSe+5lPDjmaZjkbzIGPs8 L9TqE60K8DyeLNnZPf4Pkpx6o5r7uO3iQSN5qFyj5H82mDJ4vcQLZSNvDIA4+sRm +qmsBcn6Gk3EU3u3/YrxhuEY0ymUrJvm5LSG62CqLwA1Pd+REF70Ir5LdO4yJoUS blWe/CLUcnRfzMEK9/NGa1z3GtkisPYBCPnYJ93m2n4ASvFQ+R3t7NCEY2W+96ce 3kSPIX5W2g0/gcDTi1bxdLnQkO4RxtSQnlCjCae58dQNUgOa2X8mdRniRjjYC059 JY35VUzmX9wCPpcuq0iMbpOEWXeWga0ZDRmlZtZCwPKxkw+AhoJQVp5jxGNa4kwZ CZDjQga3ObvN8aQqMi9TpabJ4m2ZdN1yHQ7OTN80N67tHYMAbW0aY3J0JRIVjTHo P+8Y6FaCLzJA73BgnR7faiILXIPtXE54X+koo8x2Uwtrl8/wHsaPTippq96ts6Y6 3Zdr3EAQgAPhYtUgtHoIbLFBLjmyL5sUXOTwG/gMkUYXVkDpeBnc+BHrkv0Sjaw7 Vzz5HthhnSblP9bLB3KPTbbM0t+aypsSOYOSZWnIK8ANI9BdrNQ= =tSyt -----END PGP SIGNATURE----- -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEfjeSqdis99YzvBWI7ZfpDmKqfjQFAmOGOvAACgkQ7ZfpDmKq fjSedhAAu8XkzqB8NmXDYfEurBCUPe7zCBxBe7yqdt5W+tDA9snOtab3d8Oq7Lsb vNZfh4qHIxNbEYpoXOc0Qce3XKXGgyKDmZeFYQJ0ziqoZXetNLQEmg7T/H2m3GHl eo7K3w2hvyBB26FuDtimE5pzuJo9qJLXDp2SbOAbKa1w5HibyvZBOfcQozZ4CBmE mBc8LzyFY3zOhiy7CGYskqOzatNa0Eid95RkK2RXXTnN965N1qdyOz3z9SkJFH9h MR84VGYBmk0UGdPGmp1imkGmIrO/8AFny19ECCe4F74o2DFSPzANOaEh+i3fIP3d GNR96la9GGopmna+VNQt6zxdw4DHRoNkAupnJ2NVM0lbAMOG0mmwCFkCzW4gzTVm 7NdAtZyH+HjiKYPdQNIHbsvl0K1qIo1yXrb4jTd8eXaxA65msCOOwjqWk7a8ZjrJ NrLNmGeLow9svofEAeLpc9BUgwF90JGIlb+tPYovyj/xSU9vhQl1ZEmFYYdaN781 rGZ5jKtwBZWoAxW1Copf8S3jcxleSVMFo6MTEU+K+svZLd8SH5BnETa0fYWSTzKA uh2Y4V6pFe0/JVVC15mYkytbP6TC6prRmi44jRHtVRDtizGd7FFxYacIApkhBVi2 Qb8Qy+oZySwL+dbRlu+bA9nHIdACtxRouVEWpAecCBLaK3kBb7I= =6g+2 -----END PGP SIGNATURE----- -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEfjeSqdis99YzvBWI7ZfpDmKqfjQFAmOGOvIACgkQ7ZfpDmKq fjT6/A/5AQdjRCEQngohVPQcxWE57FhHN+3Yq72iCbi64MhnL8sR+fHcni8CRb4f SIxi/tXeLdKJVV8+w7TBeQIDBDHrWXla2NSTHNcGREdp/wMoWagxBzAx3g2qQ7eT Qz6JhG4pHlOGK3u0/RESuCnhS/XmKTYj6BeDNc33LQ4iB0Lh+o9O/rz6jQyO3Y3L 84QMNJ4Edq/pOz9d9T1/cWO1j8Cn4Mled9WdCyOqZnhzRcJdbi/gDydC5aJIj1Fx 5OUrRwblIRVxMbK+kZA4D0lHR56KZb7NsaFGfsnW0m5zHUpXoGNYaFelKlWoRblO OEneM34IgNxsLhe9J9r/epSWB/14PmaY0zdXlNmKqELa7zYiJkiAwucPWtpxkPJG q6WPt4Pk4bWcud9esdgG7vjBz3ffrz2hUrmSMxuwLPHLuPRLrBoeMAmecFixGpea BUmR+XCPV9m19zcnvshBFGuLTNwFZSWBlUB9lWIocXc9cIMo4W/gNdUhnjb9L0+z VtAJzws1VcRV5zpkanwt+K50xjUlunxcRgLbLY2oMCpeDQyxH6DTnUr8RdJeMmvM ZPJYekxG0W8/eEjDOUFIQqvOtK1sQVhCZhjeciDW7to/K1p7DJy+g5g7lJn5KK4B Oz8vqmhdvdoIAK5uezPILpyJT7UpdUhmZ1WwQRqhk6G3jXPigQc= =Kyhr -----END PGP SIGNATURE-----

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2022f release of tz code and data available
by Paul Eggert Oct. 29, 2022

Oct. 29, 2022

The 2022f release of the tz code and data is available. This release contains the following changes. The most urgent one is the change for Chihuahua, Mexico which affects timestamps starting Sunday. Briefly: Mexico will no longer observe DST except near the US border. Chihuahua moves to year-round -06 on 2022-10-30. Fiji no longer observes DST. Move links to 'backward'. In vanguard form, GMT is now a Zone and Etc/GMT a link. zic now supports links to links, and vanguard form uses this. Simplify four Ontario zones. Fix a Y2438 bug when reading TZif data. Enable 64-bit time_t on 32-bit glibc platforms. Omit large-file support when no longer needed. In C code, use some C23 features if available. Remove no-longer-needed workaround for Qt bug 53071. Changes to future timestamps Mexico will no longer observe DST after 2022, except for areas near the US border that continue to observe US DST rules. On 2022-10-30 at 02:00 the Mexican state of Chihuahua moves from -07 (-06 with DST) to year-round -06, thus not changing its clocks that day. The new law states that Chihuahua near the US border no longer observes US DST. (Thanks to gera for the heads-up about Chihuahua.) Fiji will not observe DST in 2022/3. (Thanks to Shalvin Narayan.) For now, assume DST is suspended indefinitely. Changes to data Move links to 'backward' to ease and simplify link maintenance. This affects generated data only if you use 'make BACKWARD='. GMT is now a Zone and Etc/GMT a link instead of vice versa, as GMT is needed for leap second support whereas Etc/GMT is not. However, this change exposes a bug in TZUpdater 2.3.2 so it is present only in vanguard form for now. Vanguard form now uses links to links, as zic now supports this. Changes to past timestamps Simplify four Ontario zones, as most of the post-1970 differences seem to have been imaginary. (Problem reported by Chris Walton.) Move America/Nipigon, America/Rainy_River, and America/Thunder_Bay to 'backzone'; backward-compatibility links still work, albeit with some different timestamps before November 2005. Changes to code zic now supports links to links regardless of input line order. For example, if Australia/Sydney is a Zone, the lines Link Australia/Canberra Australia/ACT Link Australia/Sydney Australia/Canberra now work correctly, even though the shell commands ln Australia/Canberra Australia/ACT ln Australia/Sydney Australia/Canberra would fail because the first command attempts to use a link Australia/Canberra that does not exist until after the second command is executed. Previously, zic had unspecified behavior if a Link line's target was another link, and zic often misbehaved if a Link line's target was a later Link line. Fix line number in zic's diagnostic for a link to a link. Fix a bug that caused localtime to mishandle timestamps starting in the year 2438 when reading data generated by 'zic -b fat' when distant-future DST transitions occur at times given in standard time or in UT, not the usual case of local time. This occurs when the corresponding .zi Rule lines specify DST transitions with TO columns of 'max' and AT columns that end in 's' or 'u'. The number 2438 comes from the 32-bit limit in the year 2038, plus the 400-year Gregorian cycle. (Problem reported by Bradley White.) On glibc 2.34 and later, which optionally supports 64-bit time_t on platforms like x86 where time_t was traditionally 32 bits, default time_t to 64 instead of 32 bits. This lets functions like localtime support timestamps after the year 2038, and fixes year-2038 problems in zic when accessing files dated after 2038. To continue to limit time_t to 32 bits on these platforms, use "make CFLAGS='-D_TIME_BITS=32'". In C code, do not enable large-file support on platforms like AIX and macOS that no longer need it now that tzcode does not use off_t or related functions like 'stat'. Large-file support is still enabled by default on GNU/Linux, as it is needed for 64-bit time_t support. In C code, prefer C23 keywords to pre-C23 macros for alignof, bool, false, and true. Also, use the following C23 features if available: __has_include, unreachable. zic no longer works around Qt bug 53071, as the relevant Qt releases have been out of support since 2019. This change affects only fat TZif files, as thin files never had the workaround. zdump no longer modifies the environ vector when compiled on platforms lacking tm_zone or when compiled with -DUSE_LTZ=0. This avoid undefined behavior on POSIX platforms. Here are links to the release files: https://www.iana.org/time-zones/repository/releases/tzcode2022f.tar.gz https://www.iana.org/time-zones/repository/releases/tzdata2022f.tar.gz https://www.iana.org/time-zones/repository/releases/tzdb-2022f.tar.lz The following convenience links are also available, although they may point to the previous release until the relevant caches are refreshed: https://www.iana.org/time-zones/repository/tzcode-latest.tar.gz https://www.iana.org/time-zones/repository/tzdata-latest.tar.gz https://www.iana.org/time-zones/repository/tzdb-latest.tar.lz Links are also available via plain HTTP, and via FTP from ftp://ftp.iana.org/tz/releases with the same basenames as above. Each release file has a GPG signature, which can be retrieved by appending ".asc" to the above URLs. Copies of these signatures are appended to this message. This release corresponds to commit d3dc2a9d65ce433555c994ce2cf84901b87d9357 dated 2022-10-28 18:04:57 -0700 and tagged '2022f' in the development GitHub repository at <https://github.com/eggert/tz>. 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1 0

2022e release of tz code and data
by Paul Eggert Oct. 11, 2022

Oct. 11, 2022

The 2022e release of the tz code and data is available. This release reflects the following changes: Briefly: Jordan and Syria switch from +02/+03 with DST to year-round +03. Changes to future timestamps Jordan and Syria are abandoning the DST regime and are changing to permanent +03, so they will not fall back from +03 to +02 on 2022-10-28. (Thanks to Steffen Thorsen and Issam Al-Zuwairi.) Changes to past timestamps On 1922-01-01 Tijuana adopted standard time at 00:00, not 01:00. Changes to past time zone abbreviations and DST flags The temporary advancement of clocks in central Mexico in summer 1931 is now treated as daylight saving time, instead of as two changes to standard time. Here are links to the release files: https://www.iana.org/time-zones/repository/releases/tzcode2022e.tar.gz https://www.iana.org/time-zones/repository/releases/tzdata2022e.tar.gz https://www.iana.org/time-zones/repository/releases/tzdb-2022e.tar.lz The following convenience links are also available, although they may point to the previous release until the relevant caches are refreshed: https://www.iana.org/time-zones/repository/tzcode-latest.tar.gz https://www.iana.org/time-zones/repository/tzdata-latest.tar.gz https://www.iana.org/time-zones/repository/tzdb-latest.tar.lz Links are also available via plain HTTP, and via FTP from ftp://ftp.iana.org/tz/releases with the same basenames as above. Each release file has a GPG signature, which can be retrieved by appending ".asc" to the above URLs. Copies of these signatures are appended to this message. This release corresponds to commit c4eb3fcf2fc736b7924176cf9c3f9c305c398b8b dated 2022-10-11 11:13:02 -0700 and tagged '2022e' in the development GitHub repository at <https://github.com/eggert/tz>. Here are the SHA-512 checksums for the release files: 7b3771bfa024d0bf445256f4d837a046eaba910ca3f2a5b4fcaf72ddd5fe34a9318a68f94ee09c0de120f3bdea41e9a16b0e82763896df8a6254ced0b454c060 tzcode2022e.tar.gz 3b63ba2662930ee13dec79290f57545d71d21d4ddb76f94498a7096edaee0b3150e501c221c4d596df6af7c1d770c211f88feb5add13c5e3bed979218b4544da tzdata2022e.tar.gz 6b316ac2d9dfe615685164accd126ee29c363fafe0d3483ac155644c5693693758e7315aa9f55c0a3e3c027d38f1125462d84a13fd424458b86f6be33f153cc7 tzdb-2022e.tar.lz Here are the GPG digital signatures for the release files: -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEfjeSqdis99YzvBWI7ZfpDmKqfjQFAmNFtBIACgkQ7ZfpDmKq fjR5uxAAncvLsl0jRRUoY/5t92LNweU9UG3qTV6k3Y8GMlY6vOl3LFPM/Be9RKzr oJ6z3JNjOHTeE69Y8xWDqzcxyKiFIyJV3l9p0Pc6JiBWWmI/MOarja3PjGsw8v0C jv4pV+Qm5zObEvtIBboOsK5WE26/5zzP0mlW+zseAu9Qj2Ed9MuAB4xw7SDHlzWN k49SwPeeIrnW6z4iIx55KHZv2bn7XSytw1X5ZsVEizEzO+uNJh0/P0VfS9FCWdyY tOop5WYBzFfPfqHP4Daq1UbZF79lJS0W+7d7VFjgWq4dLI1C9B0H1LAO3TDPIHj+ lbq4RyGEuevl1pFXLQcum34tzlPfv5vrJF6elHWAzxZESRQwuUQ4ZEl3dkdU6P2l h/V9haUG8NHzFHsa+gVABqJ+HbNYeh6U8ve313PB/7kYtCG3ECQuKMouVQkTdNTE yh96FvKQcfqLGEdbLl9F4FyMAD2LVCQZsJeflBYQjXoMJWI/UDW5EJewxosx6ltG OizhQFY7VYnTSdv5PLevfaT0b+qQ5VJ7kNGdyRo+jjtReN8jt/Nr/ZOu7kgx2e2V fDtGfOdEe/3Hc2ZkxhdAP4q/mw17feiEC+ngbHhmtdvGO+Zm02lOwcfVb3vURTHf Pgb74iYpEioxMSlmeNjeHXeo2zPOsAfZDKv1jTuExEkrEZRKAZQ= =Bfnc -----END PGP SIGNATURE----- -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEfjeSqdis99YzvBWI7ZfpDmKqfjQFAmNFtBMACgkQ7ZfpDmKq fjRUzxAAvpQHbranZRCN7Kf5XHR+0oQEio4zDl0ETg/dXmndWUN360JwHIcmzGQR H6XHIPihZX/iBq9R+1gzYDijRagWGJ4YgUnp9qJ9GnM2Xj7+DNkTBjuy+p5fMXU2 /tofAxlaJx4Mb1C7BDLuRc4jtU+36VxCvycwOyEYocngOapOGr/7xooTgYsT6BdR UcxdM6E+M/9PR8Mocz7PrVGyA3QanUp/tLtw6Q7s43Ch9E4W7TTX1T9tVF2b/9Ka 5PmamLEUVBpo0Ia4ofydr0W41sU4A0WRfVu9VjwikNbSJ7Vkw7hEWcgR6aH+GfCN 2ZfGq7JMPhJh3oWuNOTYx6h2ySS3EgRXo3x+4ktm2UIdublCnjzaXl45Hokuqu2F 9RzNeSDc5S1obh72SeALH3FymeeI/dUk3nNqZbM1UvxrJtICn6xcbGA5g78ItExb BOK19dLzkAo8dduBrBRFo7gZ1wB5hudJn5xeY4jsh1Q6lcnYKdWk6k7DcnirNuJG NkbvSlXq+83zxT6DpZXlCpN8qRV6crFcGSq1UUbpX2bRmkqdvmuAOwfdEjqLoH54 fMHPMBSszzaJdMyGmFM7VaJYWmH/I5mUZHQmT+XagL7ZDjGgwMNsoeCGKPBa7vLx lQZU9rwMgqWBm+LimwaZRJrXAoNgk1O+xeYvjNg4cUmiJOgy2wI= =XYNS -----END PGP SIGNATURE----- -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEfjeSqdis99YzvBWI7ZfpDmKqfjQFAmNFtBQACgkQ7ZfpDmKq fjSNbQ/9FMWPzYHrbPVJH6IZjnfbz0Zc1XeZTDZLvK6BEARPy2fs7/8hWlvuSpz3 nPSIyK3gZyEyd88xSgkzpvf6AvbYRz/KN+6ntOTq1tYoxIcRcqEG8MFqDQ0ZhQuK EqzqGFZHwZbCR4iiZXxiCC7SqX7kRs/rGdXjCZPas/lUn1wkAKoG9oF0JlNCZn8e TdipevHL0AkuG2/mRHTV3r2NAQcs9MTOd0UJyA2gRBDL/BU02jhmaqm13kjsdAEl 5/K8c/o1jGpiuq5nm0fMMMtvnemdu6vWsY8rfbTl9UUKu421Ky6CZ1qVjG0jsGf9 12W5poAbnNQwqxuCCu66QIbwl6CKS3qveSaEvfKMg1OKF1Zc8B3bxVG/oXgAWNo2 jDl/RaTrUVDQC2fxIJjJTHJjwZRAeBH+J8iy3gnuZqeZUvXZLibiIeVCVUfTa5Mf 2ZwxuNcIjY05Ox4ldlAgSmy4ozzRRl8J7X5YoNKR+/H1Nc+t6pzJELCkA+cqXO6c dyBUk7imH08zy+J3EpujEJhFG1s3dunKr0TA494wT8xlXgZm0PNIjz3P4pgsWbUc IWeVvlGhlOOMaIug2JroYGM3yFiyDdcXo3olelZFqAukakQxTb8XFiJGuFtq+USg Hxn09bCLS2BCf8ut3T1TO8g8CF/rAFIASVPvpAZK4fCHOIq+Kq8= =Ttyr -----END PGP SIGNATURE-----

1 0

2022d release of tz code and data available
by Paul Eggert Sept. 24, 2022

Sept. 24, 2022

The 2022d release of the tz code and data is available. This release reflects the following changes: Briefly: Palestine transitions are now Saturdays at 02:00. Simplify three Ukraine zones into one. Changes to future timestamps Palestine now springs forward and falls back at 02:00 on the first Saturday on or after March 24 and October 24, respectively. This means 2022 falls back 10-29 at 02:00, not 10-28 at 01:00. (Thanks to Heba Hamad.) Changes to past timestamps Simplify three Ukraine zones to one, since the post-1970 differences seem to have been imaginary. Move Europe/Uzhgorod and Europe/Zaporozhye to 'backzone'; backward-compatibility links still work, albeit with different timestamps before October 1991. Here are links to the release files: https://www.iana.org/time-zones/repository/releases/tzcode2022d.tar.gz https://www.iana.org/time-zones/repository/releases/tzdata2022d.tar.gz https://www.iana.org/time-zones/repository/releases/tzdb-2022d.tar.lz The following convenience links are also available, although they may point to the previous release until the relevant caches are refreshed: https://www.iana.org/time-zones/repository/tzcode-latest.tar.gz https://www.iana.org/time-zones/repository/tzdata-latest.tar.gz https://www.iana.org/time-zones/repository/tzdb-latest.tar.lz Links are also available via plain HTTP, and via FTP from ftp://ftp.iana.org/tz/releases with the same basenames as above. Each release file has a GPG signature, which can be retrieved by appending ".asc" to the above URLs. Copies of these signatures are appended to this message. This release corresponds to commit 0fc8f915a527d1d6610b9545aa3958cf89511927 dated 2022-09-23 12:02:57 -0700 and tagged '2022d' in the development GitHub repository at <https://github.com/eggert/tz>. Here are the SHA-512 checksums for the release files: 54491ef8dbab7c41754eb3f2990b8ccb2a10960098c7d78d94375d7f1362540f0d71ba77a46bcaf95f419f8d01a23bdf940cdc9c7906c23ad6c40cd1c788b1c2 tzcode2022d.tar.gz f0d9f1dc6b7613598a861a3860f249e5beff75d8c4bb12bae21018ee617044cf25065dff08f81b0e6ed2c43602f2166dd6407a989a369a004e068260f2eece30 tzdata2022d.tar.gz bb1873550d5bb3fb0d1b595f321e2e90e63bba11bbd80a8c3d440903cb7a9ecd1db58644751b0925bc2854c2b17107238b3a2b9d5f8f91188e3b80b0b67f2673 tzdb-2022d.tar.lz Here are the GPG digital signatures for the release files: -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEfjeSqdis99YzvBWI7ZfpDmKqfjQFAmMuBjEACgkQ7ZfpDmKq fjQAEg//W+Dm8r7XHCZXNi/H87476tS4AZ8LiggRU+SAnkm7JDj7rAHhpR5uAO1s e1wXaKSMsfxHtUHCjmDn9qguGA3OPUaySaIw6+BGplfCAXarBj5tCrwsiF6T0tvY z3gTeu2E1DDzz2vree0y3boX9aTuFGmc9Ru+dUOVR/O4dun5RbN4VvKBdVRBIOpJ nXVSB12ZRRuTRoXeoSmKfXNPocM330yquWu/HvEdoWSspnx1hptY53DmG+BrSwvS 4uGfqTs5D4zleOaFXLNFb2igwmTS7g2nJGusud7ClXNeU8PkBUiS8ptFTX2n+TnQ SQxuVh+hTlMUjOMFWAkWxDPPRMM4sH3IgRj3y8sgSVOEaCfP9CGH0AgrgH6UuTlQ RtlQeFW2iYSyzmnvatEoE4tGu0bPjnJD7cnMFj6JWdJmks/A8ZgkkOCSAQ9tnqRj pMih15BOeRiQD6JSf8UJ7CIVhe44pN52DKIVZUxFzd6wyj25QRzF7yARykXYUAb6 quwy/WqkLV56MuZ21BuSWPXra1VXXygDctYHPSUuoXdHPEqY5BYtDNXD77e2vPiM X3oLLFe1j4rlY1tWQOymAFWJXL580l+kgzCS8Hf2cbPC0/on4Juol4rY4EB3RZHc FxhWPNDu9E1IIS4BP0BRLG56PQ9sGCy9NUFyxcimWBG2ApXHPTA= =MG7s -----END PGP SIGNATURE----- -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEfjeSqdis99YzvBWI7ZfpDmKqfjQFAmMuBkQACgkQ7ZfpDmKq fjQPuQ/9HOGp0hSxUup5vWDn0Eb5LChS+5J3nP1e6f6hjghGtOotMEmg/4Fc0w1w HqdEniaTzxMa//UxArnHrUP+rXNiodUIiykHXWXxGcEuYF3VX/PtFfBtodLRszRS gTbzRABrlzuyEvecX1/0rU+msi4IHAFV+/YFMv+2C5Fp8ra/nkailbN667m1MG6y HmHLov/lOfuZNKWGa1Z6B/gr7Oh3LmeQ+sPJc0v4OvKmPEER6E+Zwc4DvMJechD4 IJmdwkfHngyjgDHI2my8lvxWkWQnYgC2WXM/tZ/FAMSErakpwnpUo0FbzLs4Dfy1 WERS59Xqi8tiA+7hLxMGPirnXAF21hyb+L2E96FOVDv/ebQrwkfdekGN6MNYPLpy +pCbfwC+0zcfPc9BbvyxxPwdmpvzsFBQ3VwFO/M0jJQ8K6S/5OkTOi5OuKYaKVhV Wb6cXDE1Mf4EctOW/lyuA+xxJLRadjqFg6Cc5brFKLm7bf05JevGi/oboVo8sXIh qdYc8kqEEBdOzymeSwuo71jNaAYK2hN4hsDaJfxHQdObRx2p53AMTu+99pYiYHiT jOEXBQv6HwA4ve1oz2iMqsS2WTNfLctIVxYsFOLDXVHBkgxm5J9FQqJRvoDc30PK eYNRahWQ3MBGtaDRHQU5Vhru+au5CywihGTDvItvLpgVAO5LwJs= =VLZ9 -----END PGP SIGNATURE----- -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEfjeSqdis99YzvBWI7ZfpDmKqfjQFAmMuBkgACgkQ7ZfpDmKq fjSHIxAAplxEGo1Sl94i7OXjVBJameXZ3p2J5AQ7LN3P1N8BOYiCPDaQzfjXprix Ev9Rm+FUOBx0ZDvm03av0MvH1b2sWhFp3VtxcKFiTpyGCRBOPgSG7IsKiLndlcgh eFFc1IOXWPdm9nTma9XxOI0y2oAl8xdK6F43cULpBslkjPyB5diBu/emI28sJ5Jo d8rgCH9mrvBKPCOgOC56T3rSsCXU71lon49l44tjfBw9FcQRgdB4GRnBKpJYPMqb QUZT6WI6sbRqWrKyVxNC8zks4n1zq0eFhFXSlXFHKUicR63h/PoCEzWX3v2yxZc2 gAFq9cb2Ivab/wz4l1khot9PZBdvYSe4fzcbmNG97fmqkLEg3Lw2ZuqEZBYv3WLn yGnPmDQGwvLwNe28nrAJwmZDccC348XQ8mO8wc5FOk+pWmSx0mW/trgDADTdgK89 pgN9chj3OjC1yagMG8DZWu6LoV+jOdrqI/hRAE9ws/z3iizfebadNYVzN8dLt4xk 7bcKUQ9oddA/kHBtDg28LCEd/3yodVocRpltP2JJgbDdJd8KjrGdBlp/VGbIOCpi KM3N8IXZPVfO/7oUGhFYWCskVLgWQSvwpBXI2+J3fFq3NYHlV20zXhaDeRDYLqxD wNUvDpPZZ8nTO5bhr5AYsW5fa7+tz/itQw/foju2/lp/Wh9XLL8= =sBcz -----END PGP SIGNATURE----- PS. If your tzdata parser does not yet support negative DST offsets or times past 24:00, or if it insists on a 'pacificnew' file that is no longer present, this release's data entries can be turned into a rearguard-format tarball that should work even with these older parsers. This is intended to be a temporary transition aid for these parsers. To generate a rearguard-format tarball, obtain the full distribution as described above, and run the command 'make DATAFORM=rearguard tailored_tarballs' on a development host. Or you can run 'make rearguard.zi' to generate a single file that can be fed directly to a parser that works like 'zic'.

1 0

2022c release of tz code and data available
by Paul Eggert Aug. 16, 2022

Aug. 16, 2022

The 2022c release of the tz code and data is available. This release reflects the following changes, which do not affect timestamps unless your system has the awk bug mentioned below: Briefly: Work around awk bug in FreeBSD, macOS, etc. Improve tzselect on intercontinental Zones. Changes to code Work around a bug in onetrueawk that broke commands like 'make traditional_tarballs' on FreeBSD, macOS, etc. (Problem reported by Deborah Goldsmith.) Add code to tzselect that uses experimental structured comments in zone1970.tab to clarify whether Zones like Africa/Abidjan and Europe/Istanbul cross continent or ocean boundaries. (Inspired by a problem reported by Peter Krefting.) Fix bug with 'zic -d /a/b/c' when /a is unwritable but the directory /a/b already exists. Remove zoneinfo2tdf.pl, as it was unused and triggered false malware alarms on some email servers. Here are links to the release files: https://www.iana.org/time-zones/repository/releases/tzcode2022c.tar.gz https://www.iana.org/time-zones/repository/releases/tzdata2022c.tar.gz https://www.iana.org/time-zones/repository/releases/tzdb-2022c.tar.lz The following convenience links are also available, although they may point to the previous release until the relevant caches are refreshed: https://www.iana.org/time-zones/repository/tzcode-latest.tar.gz https://www.iana.org/time-zones/repository/tzdata-latest.tar.gz https://www.iana.org/time-zones/repository/tzdb-latest.tar.lz Links are also available via plain HTTP, and via FTP from ftp://ftp.iana.org/tz/releases with the same basenames as above. Each release file has a GPG signature, which can be retrieved by appending ".asc" to the above URLs. Copies of these signatures are appended to this message. This release corresponds to commit ce4d77644d2793027bb27f095dec7b530edcd947 dated 2022-08-15 17:47:18 -0700 and tagged '2022c' in the development GitHub repository at <https://github.com/eggert/tz>. Here are the SHA-512 checksums for the release files: 3373fa16a12007415c3dc3a75c4a0d61d6ae54968eeecedcdf4bcfd7f554020a15c4687dde107b90462b75d848eebe1e200c33322ebe0d3f1ad11bc769cade06 tzcode2022c.tar.gz e2ae92abac6d87ce4ab4ba9012e868e1791b842e083293489debc0c671b9cf135b5b70426dacb6dbebbf6eba24463205225ae45bb7df891a086b25475f85ee0b tzdata2022c.tar.gz e51a9044da116a52906bc0fc22a3dde0e1a6d4e486f9e610a63aa6634ccc1ebd0bc2d47d2faa84bde2b78cc890fe3fb08f6c1ac4e1e0c147d45de5c21d26b26a tzdb-2022c.tar.lz Here are the GPG digital signatures for the release files: -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEfjeSqdis99YzvBWI7ZfpDmKqfjQFAmL66eQACgkQ7ZfpDmKq fjSarBAAp6iKJluMo3MOD4YQUwB5aUsVg1zSXPYs1WH88gXaHLxm2G0fv8Ar4FFg gDOBxyazc/4fB7zwec3rMKo5KVV/pRil1go93BetefoU1ffhrLYbrVw89/VsesXP nQ5FXkVLd/u5vuOXf2WoS+hmJANlC2ljhHTN1MX0hoChyLA/paBYvS18mTn45Tm4 PCH6cPKX//gwGSmOavRqlT9wp95NCpCeXX7Yl5aYIgpdGAJAGZJrzGcn1Rp0NoOJ BQfoaC4SuGEeBbqsUdoFrXE6V1rI1pAvPXq8fwTjrh7LDIaGmIHY+HAeJUDwT4d5 rEXNJ9D5mun4VDkVMiyMlITTletu1wnHyspLZk4h9g6H75C2c0pipCI4FGfEn+wh 2l54bVAwJE2An5UKdqukaC2B9MGxEFTbgE5Za93OwOyrb6FFGUrMjj2Ua1nf1h6E 5VefqyKepF1TY/ApWy2OObTioBew2lVuXRsQrD1cDo/rqAyMYLlkrye0nQspvkAA jv5LKH8fmapBee7JaFYYbnCMZwpyr0iP4LOiH34a9vsFrUtERUTUKxhPv1epNyyc F6ECJz7wknYwRszyp/2ai7nc8yCHc+76dmgXM6fPwcghuVv0ihl7uOkNx1Rp2MHr oZ7r0KV7HcAOQgCWJuh4l1QNX3qX7XqmRJP1rNCmMbUnENme6MQ= =7xd7 -----END PGP SIGNATURE----- -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEfjeSqdis99YzvBWI7ZfpDmKqfjQFAmL66eQACgkQ7ZfpDmKq fjTHhQ//YaTZjsHEvJuVFRcqjuIByGySv7aUnvldFGZ4vuAgIX0g7hlaoCdSlVri qjqhGSM7ShcRs1PtvBGUmFrrfvhg+vW6D6etkf3GO8h/Vztz26GIkY/PLv/wFu4i bf915wfbsMmaoI/MVlLsNMzQ63qS5i+JwouJAKOmUb95wNMrmKlBi4XXcQNvUdTF pp7uGq7jJdcETAgH5UQkeiXBghahdS6SEK8raFplW2hK8SqyAAjG9hRBjMqyoSUS cPK0UwrjLZvd9KOB73RFryglkNpTthqvsr4vZ7K4WzZuIYxHLzG2LEG6Rhuuq8Z/ 2u3g4KMLJ29NQJRIjAYWU9F2IruzgQJjxRjMtbxysR7Jiru+xzg5nha1eRdp/G4z F9aqc2NR79I9kpUQAIxhi3C6v/mreMNm0HfBskA3Ws1R7Mi7MSpnIhi/gwUUnQV2 AMBOo2qAz24d3kt65Opc2bHWZemtfzXTkMQhIiIgCkHrb5H9EKUYac+aJeJpRZKU jdZ/5rLzKJyUraBb1a0h6UXCuxk0yVelVIcDEjaJTfpgMF5qmwrFaCBZUZ0zbQvT 9VhltgpkWGGUMJxn+OTyGsZRO8oUXg/3SbaMQr0tAnR59tcorvhF5wU5aNH/PYoa dDwW+qmDW3ky10DiF2fzjZWwRBiiLJF61stHXaNy9RvHC/V3yFY= =nylY -----END PGP SIGNATURE----- -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEfjeSqdis99YzvBWI7ZfpDmKqfjQFAmL66eYACgkQ7ZfpDmKq fjS8Dg//fnZzYIPMv90un2mPyAnVZbVSS6O8CG2YSdHPkXwVZE8DbyrIVNaJTLNG zaGgQ0/+enf3HZlM8NTBJO6Zf4Sv1ZFrnifqF0JmUZ5P/OxlhKLdt3OgQ0oGAX48 SacJoXf3JX8At10Ar+NVtAneJpG1wVsD4nPFrNS/rWRwfMMKdnP2HxlEVHCbNikk r1/F+065qbXYOhYD3UpqJI9dKaA3OFjEANQJJHw3+h7m0YZFcMATSw5anrnvGotx +lgQffLQvKIKc5E7CsppEk0SnFmKncUceepajJzqnyNTT9kecSAlu6qrnJCgHtu+ qhQfMfklixqocCwj6yJyZDKuv9e8vKjb7U2HYhNRhBWS3eE4ozE6fDDacehRyUrz HLgotpRuYWImP3MA+AhOqSQThY2y3tSOHAKxMDixaq4dkpXGgg+5KR/VRLD8//99 m19yu3QqpzjKGPiQpfdU5tpk/2JegFpCbYwsMkw0XfCVvmRwjKGexS3hIHLF4WkQ XMjkf8Bj+AS0Ld+9IBE97BrG6qDN+NPI9EhC7/YvyxqcDcSWbG65JbiYkyDUkBgt rUFPTlUUTD2hcdfbQQZ4f23F/iJpbJXOyhqxxHl9RnkJkEkgDcO+apps74V4IN/6 YSP3pvW32hZ0Z8iXKD4VVbYBqIw6rLb8HpaA5zQEHs/S2A/kcfs= =BW2X -----END PGP SIGNATURE----- PS. If your tzdata parser does not yet support negative DST offsets or times past 24:00, or if it insists on a 'pacificnew' file that is no longer present, this release's data entries can be turned into a rearguard-format tarball that should work even with these older parsers. This is intended to be a temporary transition aid for these parsers. To generate a rearguard-format tarball, obtain the full distribution as described above, and run the command 'make DATAFORM=rearguard tailored_tarballs' on a development host. Or you can run 'make rearguard.zi' to generate a single file that can be fed directly to a parser that works like 'zic'.

1 0

2022b release of tz code and data available
by Paul Eggert Aug. 11, 2022

Aug. 11, 2022

The 2022b release of the tz code and data is available. This release reflects the following changes: Briefly: Chile's DST is delayed by a week in September 2022. Iran no longer observes DST after 2022. Rename Europe/Kiev to Europe/Kyiv. New zic -R option Vanguard form now uses %z. Finish moving duplicate-since-1970 zones to 'backzone'. New build option PACKRATLIST New tailored_tarballs target, replacing rearguard_tarballs Changes to future timestamps Chile's 2022 DST start is delayed from September 4 to September 11. (Thanks to Juan Correa.) Iran plans to stop observing DST permanently, after it falls back on 2022-09-21. (Thanks to Ali Mirjamali.) Changes to past timestamps Finish moving to 'backzone' the location-based zones whose timestamps since 1970 are duplicates; adjust links accordingly. This change ordinarily affects only pre-1970 timestamps, and with the new PACKRATLIST option it does not affect any timestamps. In this round the affected zones are Antarctica/Vostok, Asia/Brunei, Asia/Kuala_Lumpur, Atlantic/Reykjavik, Europe/Amsterdam, Europe/Copenhagen, Europe/Luxembourg, Europe/Monaco, Europe/Oslo, Europe/Stockholm, Indian/Christmas, Indian/Cocos, Indian/Kerguelen, Indian/Mahe, Indian/Reunion, Pacific/Chuuk, Pacific/Funafuti, Pacific/Majuro, Pacific/Pohnpei, Pacific/Wake and Pacific/Wallis, and the affected links are Arctic/Longyearbyen, Atlantic/Jan_Mayen, Iceland, Pacific/Ponape, Pacific/Truk, and Pacific/Yap. From fall 1994 through fall 1995, Shanks wrote that Crimea's DST transitions were at 02:00 standard time, not at 00:00. (Thanks to Michael Deckers.) Iran adopted standard time in 1935, not 1946. In 1977 it observed DST from 03-21 23:00 to 10-20 24:00; its 1978 transitions were on 03-24 and 08-05, not 03-20 and 10-20; and its spring 1979 transition was on 05-27, not 03-21. (Thanks to Roozbeh Pournader and Francis Santoni.) Chile's observance of -04 from 1946-08-29 through 1947-03-31 was considered DST, not standard time. Santiago and environs had moved their clocks back to rejoin the rest of mainland Chile; put this change at the end of 1946-08-28. (Thanks to Michael Deckers.) Some old, small clock transitions have been removed, as people at the time did not change their clocks. This affects Asia/Hong_Kong in 1904, Asia/Ho_Chi_Minh in 1906, and Europe/Dublin in 1880. Changes to zone name Rename Europe/Kiev to Europe/Kyiv, as "Kyiv" is more common in English now. Spelling of other names in Ukraine has not yet demonstrably changed in common English practice so for now these names retain old spellings, as in other countries (e.g., Europe/Prague not "Praha", and Europe/Sofia not "Sofiya"). Changes to code zic has a new option '-R @N' to output explicit transitions < N. (Need suggested by Almaz Mingaleev.) 'zic -r @N' no longer outputs bad data when N < first transition. (Problem introduced in 2021d and reported by Peter Krefting.) zic now checks its input for NUL bytes and unterminated lines, and now supports input line lengths up to 2048 (not 512) bytes. gmtime and related code now use the abbreviation "UTC" not "GMT". POSIX is being revised to require this. When tzset and related functions set vestigial static variables like tzname, they now prefer specified timestamps to unspecified ones. (Problem reported by Almaz Mingaleev.) zic no longer complains "can't determine time zone abbreviation to use just after until time" when a transition to a new standard time occurs simultanously with the first DST fallback transition. Changes to build procedure Source data in vanguard form now uses the %z notation, introduced in release 2015f. For example, for America/Sao_Paulo vanguard form contains the zone continuation line "-3:00 Brazil %z", which is simpler and more reliable than the line "-3:00 Brazil -03/-02" used in main and rearguard forms. The plan is for the main form to use %z eventually; in the meantime maintainers of zi parsers are encouraged to test the parsers on vanguard.zi. The Makefile has a new PACKRATLIST option to select a subset of 'backzone'. For example, 'make PACKRATDATA=backzone PACKRATLIST=zone.tab' now generates TZif files identical to those of the global-tz project. The Makefile has a new tailored_tarballs target for generating special-purpose tarballs. It generalizes and replaces the rearguard_tarballs target and related targets and macros, which are now obsolescent. 'make install' now defaults LOCALTIME to Factory not GMT, which means the default abbreviation is now "-00" not "GMT". Remove the posix_packrat target, marked obsolescent in 2016a. Here are links to the release files: https://www.iana.org/time-zones/repository/releases/tzcode2022b.tar.gz https://www.iana.org/time-zones/repository/releases/tzdata2022b.tar.gz https://www.iana.org/time-zones/repository/releases/tzdb-2022b.tar.lz The following convenience links are also available, although they may point to the previous release until the relevant caches are refreshed: https://www.iana.org/time-zones/repository/tzcode-latest.tar.gz https://www.iana.org/time-zones/repository/tzdata-latest.tar.gz https://www.iana.org/time-zones/repository/tzdb-latest.tar.lz Links are also available via plain HTTP, and via FTP from ftp://ftp.iana.org/tz/releases with the same basenames as above. Each release file has a GPG signature, which can be retrieved by appending ".asc" to the above URLs. Copies of these signatures are appended to this message. This release corresponds to commit b61a7acb4d267872f1c5319f30889a927b441b8f dated 2022-08-10 15:38:32 -0700 and tagged '2022b' in the development GitHub repository at <https://github.com/eggert/tz>. Here are the SHA-512 checksums for the release files: 851622eb8e6dc8f8201bf05e1f7e411ca32b2ed0f4dc9f6b875f4482c05c4a3302259b78c3e8e2dadda52ae19d4d34ffa3463fee10f70fa3a8b08b19f1417f79 tzcode2022b.tar.gz a51418cda50386bc2e82a26201178c282ec225e04867e70a47ef90f42371a4014c70bffebb52ac09ccd893dfa17b0acc782f31527b3579ebdc4a302a9367ddb1 tzdata2022b.tar.gz b5bd93401c9586047e865a49b9f7fd0bdf451973be24a433786633f41a1ecc2f7eacdeb78d9a906c3526bfd3b236edab72682e5bc09add42156f8dcc2497694a tzdb-2022b.tar.lz Here are the GPG digital signatures for the release files: -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEfjeSqdis99YzvBWI7ZfpDmKqfjQFAmL0NEoACgkQ7ZfpDmKq fjTVbw/8Cu33QgaVXIWhyQDv9gFBtGJvgVNa7IL1FP9nz1O6unqjTr57i7sameO0 aTu/v7JiCgIg5fsqqsi5yJQnYn8mZDC4MbOlqBtE237p4BwEZbvii0UWuWo/N4ep KNpbd3ezgOCYYXA+VS4azIW1LRAHhB4ZOvoUZuoRkPfoA5bR1VfZ8NRh0SfVK17R hoeRU7nlDofxHapL5zAqikGROLHhS++PVQ+x0gi5lQmDdHLtXZeiKor/y6sqb8R3 cQt8RyM6GzA9t4rsoUnMGBZIwaLYADJAmxVpBgS1EEwVfL7nx5WLur2ui+BK2GoF nN2QUG/N9TRPPFK722PiFAqoULKWamgUmRFl302TtIbygdaaKd7fxPMmgTL22REw 6qbVamP6Gk6jpG7+/FHusHB1Vz4TiTbSwK0g5UpTrps7QpoCXIU8sbScUXZzPYiY 1V2e9Fnrd2QE2+83guQhY4OX156Z32SPixl+qfK8+MMykibU6PGvCxhwHa7BzYBo X38rmsCri8vo+P27/godd6RBfsAkb8/PtB3Hlo0OGmhyggUMruVB+poip/xK8zJA bbjFB9pwi+gzkXVEkHIMuh5wgXswO+Tko7/P4ZH1t5xocc3BlrSxDvQuAVGb3hZw H3oyG5KP7sX4HCvZ42+3QTX05hFcJFgFtoncEVWAj+fPMJUm/yc= =IUf2 -----END PGP SIGNATURE----- -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEfjeSqdis99YzvBWI7ZfpDmKqfjQFAmL0NEoACgkQ7ZfpDmKq fjSfew/+P1NUMCiqlH5FlO5YyVGjc3Gxmpb6ToKsFloI7pn4KGlgQFy224VFmCVn ImSlurAuKydmZI6r+JPnjYIx0hcFUK/Wi2Y9tJKMlPDuOrexLa2toDvoXMlhBgQk RH+iaIGk8FC2mP/tdif0pzr43a87zRQiPuJ3MdoXYxEARXmc6wNtk07RS5jMlBUS G8dF2h023pTP3fD04Q77q+wUg3k5UuLw3DWrCCci1oeW/Vp+NzOsMb4vcxaWiH0M ecF0+FMpmqehJdKYZsS29D3aX8acZp3zXlAKoWHRCasCeKcltVEIyHHqdQrrR1SP R/r/OCOhIuOR3f9viPAAo56Obb63M+0siQYJmFy2Jr00lFjAzRIeajrCxSU7vxW7 6ljfdtSK8Ruv9FKrYD1Rdqa6jCpZLs6lnLk54WBStvdzJawjhZibBu3hK9LIagr/ Hb2x3H87swfId8lUZK46kjYhRYU7Jijtu+fPms5Fhrauaj2Dq56DrPyI+LyGKqBz Os0T28QUM6i67Rd0JOoMtDMesx2C/jvy9G09wwDq0mUdqg1OnfWeaUpYwCZJYdo0 Hm+zOPaxXIQph3f/MrFbrmwwggwFdjeCikOAH3uFPDp0UoHrGVq493sIGG3ulPYK 2FErRNNaeAyzniUK/35IqCQBB82GPiw6pxVf/O/HhPjLyUk55lU= =5vEv -----END PGP SIGNATURE----- -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEfjeSqdis99YzvBWI7ZfpDmKqfjQFAmL0NEsACgkQ7ZfpDmKq fjS9Yw/7BgRppySA/2mXbL+EqkGG1tmelEVx1TaHN/E2a/k1yji38Fs5+e0oHikb 95Xy2vApK5qMF0oye6nnsmtV+JquJSzwaQ4YDGLoPOtwCVNQU6WEOSlL7zfQXFsI AQy9x+yoQzevjiA+MK1Xx/s6a0G50uNZNFN1huRd4ENPPEw6qEEgLLo2qaP75uGz SM/RVIMjSTWdTdsefV1l/fIOPEqtX0S7SuldUbZh19NDLUn6vedwnO4i2qn71Guu EvZOr8RNtRpKeKOuyvLd+mKB1o4s3rUU/HlAAOcwJueNFstYH83QtrLKbjomPalI DC3E0x21Zlu3PoMsiaM+3BQknFBhx9JZI/pZz5+mUGlnjuNWTOcvxG9UGtRH+6Gr hVintjNuL2oabTuStxI7iuy+Dy6xbZ82Hs6Zy5xKuLixds/DutIfJHjLpsA3vaj+ PAkvEmPyF9zZY0C7QM3frMjqFc9vXY1114EKkVDknJ1jcOM1hszASgV/I3+j3NkN U2+++Y0fFWrWeGSm6mI5Pc2Z18OYfoIYS7q+k8fb1gzjiEWFav4U1cdm/npRca27 Mhkbbk4obVNyKGkRqpYQ40h99/Nl6uymMYx8N6zVin3tFXY23PeZnlJ6wS1yxOv1 i1g41pviERYjpp6JjBkosv5aVkxA+WKxqoWaE7x6fPXd1D3giAY= =H4rJ -----END PGP SIGNATURE----- PS. If your tzdata parser does not yet support negative DST offsets or times past 24:00, or if it insists on a 'pacificnew' file that is no longer present, this release's data entries can be turned into a rearguard-format tarball that should work even with these older parsers. This is intended to be a temporary transition aid for these parsers. To generate a rearguard-format tarball, obtain the full distribution as described above, and run the command 'make DATAFORM=rearguard tailored_tarballs' on a development host. Or you can run 'make rearguard.zi' to generate a single file that can be fed directly to a parser that works like 'zic'.

1 0

2022a release of tz code and data available
by Paul Eggert March 17, 2022

March 17, 2022

The 2022a release of the tz code and data is available. This release reflects the following changes: Briefly: Palestine will spring forward on 2022-03-27, not -03-26. zdump -v now outputs better failure indications. Bug fixes for code that reads corrupted TZif data. Changes to future timestamps Palestine will spring forward on 2022-03-27, not 2022-03-26. (Thanks to Heba Hamad.) Predict future transitions for first Sunday >= March 25. Additionally, predict fallbacks to be the first Friday on or after October 23, not October's last Friday, to be more consistent with recent practice. The first differing fallback prediction is on 2025-10-24, not 2025-10-31. Changes to past timestamps From 1992 through spring 1996, Ukraine's DST transitions were at 02:00 standard time, not at 01:00 UTC. (Thanks to Alois Treindl.) Chile's Santiago Mean Time and its LMT precursor have been adjusted eastward by 1 second to align with past and present law. Changes to commentary Add several references for Chile's 1946/1947 transitions, some of which only affected portions of the country. Changes to code Fix bug when mktime gets confused by truncated TZif files with unspecified local time. (Problem reported by Almaz Mingaleev.) Fix bug when 32-bit time_t code reads malformed 64-bit TZif data. (Problem reported by Christos Zoulas.) When reading a version 2 or later TZif file, the TZif reader now validates the version 1 header and data block only enough to skip over them, as recommended by RFC 8536 section 4. Also, the TZif reader no longer mistakenly attempts to parse a version 1 TZIf file header as a TZ string. zdump -v now outputs "(localtime failed)" and "(gmtime failed)" when local time and UT cannot be determined for a timestamp. Changes to build procedure Distribution tarballs now use standard POSIX.1-1988 ustar format instead of GNU format. Although the formats are almost identical for these tarballs, ustar headers' magic fields contain "ustar" instead of "ustar ", and their version fields contain "00" instead of " ". The two formats are planned to diverge more significantly for tzdb releases after 2242-03-16 12:56:31 UTC, when the ustar format becomes obsolete and the tarballs switch to pax format, an extension of ustar. For details about these formats, please see "pax - portable archive interchange", IEEE Std 1003.1-2017, <https://pubs.opengroup.org/onlinepubs/9699919799/utilities/pax.html#tag_20_…>. Here are links to the release files: https://www.iana.org/time-zones/repository/releases/tzcode2022a.tar.gz https://www.iana.org/time-zones/repository/releases/tzdata2022a.tar.gz https://www.iana.org/time-zones/repository/releases/tzdb-2022a.tar.lz The following convenience links are also available, although they may point to the previous release until the relevant caches are refreshed: https://www.iana.org/time-zones/repository/tzcode-latest.tar.gz https://www.iana.org/time-zones/repository/tzdata-latest.tar.gz https://www.iana.org/time-zones/repository/tzdb-latest.tar.lz Links are also available via plain HTTP, and via FTP from ftp://ftp.iana.org/tz/releases with the same basenames as above. Each release file has a GPG signature, which can be retrieved by appending ".asc" to the above URLs. Copies of these signatures are appended to this message. This release corresponds to commit 95ecc37d29c2f5cf711af43b0ef3a35fc2847aa1 dated 2022-03-15 23:02:01 -0700 and tagged '2022a' in the development GitHub repository at <https://github.com/eggert/tz>. 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If your tzdata parser does not yet support negative DST offsets or times past 24:00, or if it insists on a 'pacificnew' file that is no longer present, this release's data entries can be turned into a rearguard-format tarball that should work even with these older parsers. This is intended to be a temporary transition aid for these parsers. To generate a rearguard-format tarball, obtain the full distribution as described above, and run the command 'make rearguard_tarballs' on a development host. Or you can run 'make rearguard.zi' to generate a single file that can be fed directly to a parser that works like 'zic'.

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2021e release of tz code and data available
by Paul Eggert Oct. 22, 2021

Oct. 22, 2021

The 2021e release of the tz code and data is available. This release reflects the following changes: Changes to future timestamps Palestine will fall back 10-29 (not 10-30) at 01:00. (Thanks to P Chan and Heba Hemad.) Here are links to the release files: https://www.iana.org/time-zones/repository/releases/tzcode2021e.tar.gz https://www.iana.org/time-zones/repository/releases/tzdata2021e.tar.gz https://www.iana.org/time-zones/repository/releases/tzdb-2021e.tar.lz The following convenience links are also available, although they may point to the previous release until the relevant caches are refreshed: https://www.iana.org/time-zones/repository/tzcode-latest.tar.gz https://www.iana.org/time-zones/repository/tzdata-latest.tar.gz https://www.iana.org/time-zones/repository/tzdb-latest.tar.lz Links are also available via plain HTTP, and via FTP from ftp://ftp.iana.org/tz/releases with the same basenames as above. Each release file has a GPG signature, which can be retrieved by appending ".asc" to the above URLs. Copies of these signatures are appended to this message. This release corresponds to commit b102002e5300d94c369796d5b70bae22b5af720d dated 2021-10-21 18:41:00 -0700 and tagged '2021e' in the development GitHub repository at <https://github.com/eggert/tz>. Here are the SHA-512 checksums for the release files: 87b0335129ea41c5f42f687f548712e5da892baa8494cecf5d34851beceecf6ae52f22104696ed187713cf9e502570eb2041e277dfd3c043c11d0253bfde685a tzcode2021e.tar.gz c1e8d04e049157ed5d4af0868855bbd75517e3d7e1db9c41d5283ff260109de46b6fac6be94828201d093e163d868044ac2a9db2bf0aeab800e264d0c73a9119 tzdata2021e.tar.gz 8abd662f07a91eed5b77d03eaa3e9ef59ce08b4e3fc14f9857095c3d4f2039e8ac216fc985b0cf87a823eacad064197c8ecb76ba531a9fc700014d7f0057aba8 tzdb-2021e.tar.lz Here are the GPG digital signatures for the release files: -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEfjeSqdis99YzvBWI7ZfpDmKqfjQFAmFyF3cACgkQ7ZfpDmKq fjQKRw//c5HpFCN0vcPUIC/OQKTF/SXFOANCpHWypc/vgTVXFAsVu0zIKWdBuXXI 0zQDpbTcTJ2FfI5Z1JGNzeKa2G4Wy71lwwPu2mGDt0WCCAqh/l15XvgVEAM96YLG WZRK+WLKIVWgZ67NA2xWAt9VLgtA643Cgym1DCpsr9jTDAhGSYq8D0XC5OQHtfw2 oyzv4InTW+0EI14FQcQ3VqImLwGSefeYPfMBRjrAspqrTLez78vW914IWNKcgEoC pKCkq9+14u0L+G5j5E+f27gbRtZ4hZnIn5uNgItomJmGObW6khn0Huf+G6U1BAal 2zLSAYMubr1kq/6dP62QUivi1W2S3YRZDh20YsKxn214HW5qK5LdQKYruBGKOFou 7oAe91W3UW0vSJuboXj0Dbdc3p8Oay97eJ/kRDVKJZ95/UOQtwrkQi2wCbm19eC8 kvHdejbIrOvdl+ZpvkHIggQGSOchyXUASeqnX/9zirOAX0N05insC/ybJLAwepFm FqpvcfwjrJKCotAjFEEex1uIT5kgQwIumvtxLef3bGQgYtF1yfWMD0NSJAR1iAU2 BzXuikOLPNbHWpC41ODgRxBVaQnMpliC0WGJ/HiVT78ukEkx0MpcxyfnxjEDD7fz F3GlJlj/bw5rvsPrFzbSjYyzXfrn0u1y8/vgehUmtSj1K7MmB6I= =CliF -----END PGP SIGNATURE----- -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEfjeSqdis99YzvBWI7ZfpDmKqfjQFAmFyF3cACgkQ7ZfpDmKq fjSLPw/9EDTMMp0ySiPkYgXICy+hYq78xDOpF5IU34tcvmL2j3OZiM49X//CQzNF 7kLoEkYenpjJZ9QU8V0w+26UJF3js/R3a9gLU3ybPZ7+o+NOanQK68z5EvggWGfm 0yVCGbPhsKNoP/2Xtpv3gLiT6WoBvJF6k16mRQtiE7ngLJ3OUpaWaQAZ73F+sMTY I5F++cAdTvOTHw6M4ORmvp8OMg2df1KVXf2MINQZkx3OVxw+y6zaMwcKUJHz81eY KCDO6DJyoj48/WNDxfIiYVk2YoOVm9I3HiqgmrojmniJFLCq/PkWGqU61gmNCSRv 5vLjb9qnfWQG8E3E44pdH8aqZt7z7kYdcL89y5UnDBlJMmoh/cPigjfBmAot7Erw 5Mj8pp/a7tcvHKIoGZscIzjRnffYDHTD6rNwStVvTfKyGE7O6Fa63yUnndCudqdu 6nZCQNkELrn9ber4ieJR6d46LOVFvqlMhCzhknZRUBkbtU4ltwBze8RvrGGhdyJ3 s9YQtGpY1uEcNF4JWzqkE9sXtPnevFERUT1hZdQpJ2NM0mrVKAfdLhryvJyi+t30 fbMbyqmYRhPuyk7OUPbduTIXc4IIpSzAaeQRFwZqDGSOuOj+8JSk6EX9Kwel7ahp 2PIzzyffxL7m2kG9+iAKckRHz0nyvoYGHQl1gsah9qUVx2Q/JIo= =kEHz -----END PGP SIGNATURE----- -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEfjeSqdis99YzvBWI7ZfpDmKqfjQFAmFyF3cACgkQ7ZfpDmKq fjSLPw/9EDTMMp0ySiPkYgXICy+hYq78xDOpF5IU34tcvmL2j3OZiM49X//CQzNF 7kLoEkYenpjJZ9QU8V0w+26UJF3js/R3a9gLU3ybPZ7+o+NOanQK68z5EvggWGfm 0yVCGbPhsKNoP/2Xtpv3gLiT6WoBvJF6k16mRQtiE7ngLJ3OUpaWaQAZ73F+sMTY I5F++cAdTvOTHw6M4ORmvp8OMg2df1KVXf2MINQZkx3OVxw+y6zaMwcKUJHz81eY KCDO6DJyoj48/WNDxfIiYVk2YoOVm9I3HiqgmrojmniJFLCq/PkWGqU61gmNCSRv 5vLjb9qnfWQG8E3E44pdH8aqZt7z7kYdcL89y5UnDBlJMmoh/cPigjfBmAot7Erw 5Mj8pp/a7tcvHKIoGZscIzjRnffYDHTD6rNwStVvTfKyGE7O6Fa63yUnndCudqdu 6nZCQNkELrn9ber4ieJR6d46LOVFvqlMhCzhknZRUBkbtU4ltwBze8RvrGGhdyJ3 s9YQtGpY1uEcNF4JWzqkE9sXtPnevFERUT1hZdQpJ2NM0mrVKAfdLhryvJyi+t30 fbMbyqmYRhPuyk7OUPbduTIXc4IIpSzAaeQRFwZqDGSOuOj+8JSk6EX9Kwel7ahp 2PIzzyffxL7m2kG9+iAKckRHz0nyvoYGHQl1gsah9qUVx2Q/JIo= =kEHz -----END PGP SIGNATURE----- PS. If your tzdata parser does not yet support negative DST offsets or times past 24:00, or if it insists on a 'pacificnew' file that is no longer present, this release's data entries can be turned into a rearguard-format tarball that should work even with these older parsers. This is intended to be a temporary transition aid for these parsers. To generate a rearguard-format tarball, obtain the full distribution as described above, and run the command 'make rearguard_tarballs' on a development host. Or you can run 'make rearguard.zi' to generate a single file that can be fed directly to a parser that works like 'zic'.

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2021d release of tz code and data available
by Paul Eggert Oct. 15, 2021

Oct. 15, 2021

The 2021d release of the tz code and data is available. This release reflects the following changes, which were either circulated on the tz mailing list or are relatively minor technical or administrative changes: Briefly: Fiji suspends DST for the 2021/2022 season. 'zic -r' marks unspecified timestamps with "-00". Changes to future timestamps Fiji will suspend observance of DST for the 2021/2022 season. Assume for now that it will return next year. (Thanks to Jashneel Kumar and P Chan.) Changes to code 'zic -r' now uses "-00" time zone abbreviations for intervals with UT offsets that are unspecified due to -r truncation. This implements a change in draft Internet RFC 8536bis. Here are links to the release files: https://www.iana.org/time-zones/repository/releases/tzcode2021d.tar.gz https://www.iana.org/time-zones/repository/releases/tzdata2021d.tar.gz https://www.iana.org/time-zones/repository/releases/tzdb-2021d.tar.lz The following convenience links are also available, although they may point to the previous release until the relevant caches are refreshed: https://www.iana.org/time-zones/repository/tzcode-latest.tar.gz https://www.iana.org/time-zones/repository/tzdata-latest.tar.gz https://www.iana.org/time-zones/repository/tzdb-latest.tar.lz Links are also available via plain HTTP, and via FTP from ftp://ftp.iana.org/tz/releases with the same basenames as above. Each release file has a GPG signature, which can be retrieved by appending ".asc" to the above URLs. Copies of these signatures are appended to this message. This release corresponds to commit 4de3d7f2499328c97e652242a36fed9523741d12 dated 2021-10-15 13:48:18 -0700 and tagged '2021d' in the development GitHub repository at <https://github.com/eggert/tz>. Here are the SHA-512 checksums for the release files: dbd7e3df02a11676600aa7efa14592feb2ac9ab5807b0d395e0c29ff1ed4a31580120287df9fe0c65a78162157dcd31d9fbe90a2a93bfd891d59ae3668a3adda tzcode2021d.tar.gz e25e85679256cfa57072cc8902aad1ca1df5ddc4a06844ca38bd57c8b5ad386e38303654dc85525f4fb470a924db4deb3576827a14d3ff87f4a1c679414b95c9 tzdata2021d.tar.gz 6ccb3ed6ebf35643cb49d503f18b7c66957de098f41870fd14ac37489b0931abd6d3e7bf5c2797e69f56f44b31ff9f9068ffa40f5aa29260ecda9d0aac878103 tzdb-2021d.tar.lz Here are the GPG digital signatures for the release files: -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEfjeSqdis99YzvBWI7ZfpDmKqfjQFAmFp6ekACgkQ7ZfpDmKq fjQtmBAApD1Am4P0gbEECXOABxrnE258QrPRqPhupj45gW0kMD5BehW+yO2oIzOU zDmgLbWyG5CmbD2lSt2fq1mZKhfqYD2J4QJlwwiPGHriNKZZCVIQniXZVRFUzQz/ oObtIzNm5mgR6OUhWDcbzYZsa10eJ7HTMrDOGViZ7T1DyLj5yobSXqkC/Q/ZlEvM Vpnl9nDieey2GgXvobfpR+Bby6NB26Pojjab9Mbw9jyRtcvnf6GmdBn6v4aoDwKc ZUqcb9qjv7NXnN5o9nCUSK7/ad+RoVZJAVDe84Quj1Vn8ydfZ0/1+i6bF3mM6Bpi I3riuPKkv7AHW2iRgZPnnqH7U+X32gb55/+WleokkasZj7e8i1QjJW7L0b91YOHN USz1McquYNsh/n9IDph4Zw1tBpbmLYAy3HQPaR6OzO8fc9paw5nsoics/5fQ5WoZ 2T2EavJfa045XKxwzd57w9YthQgW27Ep6UMpVCEGjYCBfVt8MfmiB787apGJdeJj NeVaKfSfpE4PTWvrtfTXPCIVIbIhlA5UUXyhEBXrMJw/FVxf8rAHGi/zvmrgl48X iY/xMG4yWpUYwZqWG0NBeGE0tvj8Yj2NagWj/UnGXcte3MvgmjkFSnKhj+UZrcA+ 1ehgE8pGicWEl0xl7uW6uwJ1IgWBMHYIkxpslJdTru+nnfbBIaA= =Bvd6 -----END PGP SIGNATURE----- -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEfjeSqdis99YzvBWI7ZfpDmKqfjQFAmFp6ekACgkQ7ZfpDmKq fjTbSA/9HBEpib2dXzZg06u4WuVwFEbzu1AUblHm7I9PAzoxtTvJJqH0dMCrHDlj wldeHGclbBxLq8wF33Ajh7bvgISDhmjQCm/ux7nS0ctRnPkV4Pj2j6lsfk/gYVIB agFefLTTrdHaIrPxZ9TK7c63X+6HMfFDnE+nOrJXimls/gW/Xu/VeMDtngrCIoB3 JTSbPePbaSlA+NMn+RRhfb6jlw/Slbm7n5Zpf+VSZs2HN4+bNpHuFLbl5oMbPOrQ C+va/yKJXrNYroGOfIlz/ZnM24ZGDterLh9BBLe+zy3Ni+dhuH0x406C8zkZXSDu U1BZvHK3f84beSF0H1SbkGyjkfVSIol1o2p69mMdcyZzewng3n+MLB8lNxyMkmyk f8cTKviE0V+xoEe/yV8+0+uDhli+oLMudqNGy8eCRNgrnRkCsP513LMX73bagohQ xjtBd+cp2VSzhV4vXsJJE7mIwzofnZaGqdR/jyHND+4gx80TQo8Ftc29wRGbwCCI WU37r17EmcOPg+emOciIf8nYCPnIvKGBBZ0UcCEuvaZXXYhyg+2c82z7A+bIPZaS 6wQZhqptoWB07tJOMxcgCCV7I1fT8+GLlLLlJQXladooOa06mVzsFk8VlUX4PRl3 bIQGNgqRtoE/RnhbxgD0A4ToYUqdMvYzcoCGIGpg/4zmyFZWcaY= =NgZm -----END PGP SIGNATURE----- -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEfjeSqdis99YzvBWI7ZfpDmKqfjQFAmFp6esACgkQ7ZfpDmKq fjSsWg/+NCtwn4E06FCtkR08EV0R8uG4xI6HyQc8JsB5DiFkt+evge2Bu+De03y5 nUJ1eaWbg27MLMfdYI7q5tET9G5RRcFUSZx5Zpj+Bv++KHEz7QSB5ZajE2n2qi93 AkXtFEQn8n0sCKbxdpikiUtKyZbIhcBZkzpAVU3sDdphoLUJFI2YPUCwNL5sPnzH 9pI9/iXCvu1mDW0Mg+mdBO6BuMVmTZneSJ+qtWVRvDPBvWJu8vDr16YiNaTYXkX6 atnvTDmjc3RP5DAjFzItBjsZWcLfrWWQ9WezYXWGDmJS+ijxSH0eYAUfXdHESMMd ggNwlsYZumla1p8yGmHP7YkUynds2hZYV8ySCZhfaCjq/AYANs2hzYLIY5reQ6mJ XxRoGOECc2uCmIVwFjYAALghW0GnDAy6M/l+qgzSxAr92Y0GdlFSdv8yWvIBYPyg /gFKrS+IkLHPJEF5vcpxCpCJC2XR2lJLAzoAgLUc14kD5enmVUjJzia8CpKahq2S argJwtnUl+pZT5QLfOSC46jG2o+RnhSarPSNb21cs+eNnPMA31aXDIRrGDCJ6UXf nRAU1t7eq4bbb/cvEGgJ9ZCfoQpBhYT4QO8as4JXnzkHrB7PuUiqw2sOXixF6H46 MSKRQq/uWI6XiAbXpUDFh67EeH/U1YkR8mx67Uii6pcGLvK2ptM= =Brw7 -----END PGP SIGNATURE----- PS. If your tzdata parser does not yet support negative DST offsets or times past 24:00, or if it insists on a 'pacificnew' file that is no longer present, this release's data entries can be turned into a rearguard-format tarball that should work even with these older parsers. This is intended to be a temporary transition aid for these parsers. To generate a rearguard-format tarball, obtain the full distribution as described above, and run the command 'make rearguard_tarballs' on a development host. Or you can run 'make rearguard.zi' to generate a single file that can be fed directly to a parser that works like 'zic'.

1 0