- Chile's Aysén Region moves from -04/-03
to -03 year-round, diverging from America/Santiago and
creating a new zone America/Coyhaique.
Resolves: RHEL-84748
- Paraguay is now permanently at -03. This impacts timestamps
starting on 2025-03-22.
- Includes improvements to pre-1991 data for the Philippines.
- Etc/Unknown is now reserved.
Resolves: RHEL-74309
Previously, some of the zones were only removed from the zones
map, not the map of links. Upstream tzdata added a link involving
HST in commit a0b09c0230089252acf2eb0f1ba922e99f7f4a03
("Mark CET, CST6CDT etc. as obsolescent").
During file output, fail with an error if a region cannot be
found, instead of creating a corrupt file.
The zone removal code in the javazic compiler is different.
It handles only GMT-related zones and already applies the
removal (actually, skipping during parsing) to both Zone
and Link records.
Resolves: RHEL-59542
Update to tzdata-2024b
- Improve historical data for Mexico, Mongolia, and Portugal.
- System V names are now obsolescent.
- The main data form now uses %z.
- The code now conforms to RFC 8536 for early timestamps.
- Support POSIX.1-2024, which removes asctime_r and ctime_r.
- Assume POSIX.2-1992 or later for shell scripts.
- SUPPORT_C89 now defaults to 1.
- Include two upstream patches for month names as in April vs Apr.
Rebase to tzdata-2024a
- Kazakhstan will transition from UTC+6 to UTC+5 on 2024-03-01.
- Palestine will spring forward a week later than previously
predicted.
Rebase to tzdata-2023d
- Include time zone changes for Ittoqqortoormiit, Greenland
and Vostok, Antarctica.
- Update the expiration date for the leap-seconds.list file.
No new leap seconds were added.
Rebase to tzdata-2023a
- Egypt reintroduced DST, from April through October.
- Morocco springs forward April 23, not April 30.
- Palestine delayed the start of DST this year.
Rebase to tzdata-2022g
- The northern edge of the Mexican state of Chihuahua will
change time zone to agree with nearby US locations on
2022-11-30.
- Added a new Zone America/Ciudad_Juarez that splits from
America/Ojinaga.
Rebase to tzdata-2022f
- Mexico will stop observing DST except near the US border.
- Chihuahua moved to -06 year round starting on 2022-10-30.
- Fiji no longer observes DST.
Rebase to tzdata-2022c - supersedes tzdata-2022b
- Add a work-around for an awk bug in FreeBSD, macOS, etc.
- Improve tzselect with respect to intercontinental Zones.
Rebase to tzdata-2022b
- Chile transitions to DST on 2022-09-11, not 2022-09-04
- 'make install' now defaults LOCALTIME to Factory rather than GMT
- More zones that are the same since 1970 have been moved to backzone.
- Include patch for awk workaround.
Rebase to tzdata-2022a
- Palestine springs forward on 2022-03-27, not -03-26.
- zdump -v now outputs better failure information
- fixes for code that reads corrupted TZif data
Rebase to tzdata-2022a
- Palestine springs forward on 2022-03-27, not -03-26.
- zdump -v now outputs better failure information
- fixes for code that reads corrupted TZif data
- Rebase to tzdata-2021e - supersedes tzdata-2021d
- Pacific/Fiji suspended DST for the 2021/2022 season.
- 'zic -r' now marks unspecified timestamps with "-00".
- Palestine will fall back 2021-10-29 at 01:00, rather
than the predicted 2021-10-30.
Rebase to tzdata-2021c - supersedes tzdata-2021b
- Revert most of 2021b changes to 'backward'.
- Fix 'zic -b fat' bug in pre-1970 32-bit data.
- Fix two Link line typos.
- Distribute SECURITY file.
- Includes changes in tzdata-2021b:
- Jordan now starts DST on February's last Thursday.
- Samoa no longer observes DST.
- Merge more location-based Zones whose timestamps agree since 1970.
- Move some backward-compatibility links to 'backward'.
- Rename Pacific/Enderbury to Pacific/Kanton.
- Correct many pre-1993 transitions in Malawi, Portugal, etc.
- zic now creates each output file or link atomically.
- zic -L no longer omits the POSIX TZ string in its output.
- zic fixes for truncation and leap second table expiration.
- zic now follows POSIX for TZ strings using all-year DST.
- Fix some localtime crashes and bugs in obscure cases.
- zdump -v now outputs more-useful boundary cases.
- tzfile.5 better matches a draft successor to RFC 8536.
Rebase to tzdata-2020f including changes for tzdata-2020e
- tzdata-2020f fixes a bug in tzdata-2020e that caused an
invalid zi file in rearguard format
- Volgograd changes time zone from UTC+04 to UTC+03 on 2020-12-27.
- Australia/Currie is identical to Australia/Hobart for all
timestamps since 1970 and was therefore created by mistake,
now moved to the "backward" file.
Rebase to tzdata-2020c
- Fiji starts DST later than usual, on 2020-12-20.
- Rearguard now provides an empty file pacificnew to support
downstream software that expects it.
- Rebase to tzdata-2020b
- Yukon timezones represented by America/Whitehorse and
America/Dawson will change time zone rules from -08/-07 to
permanent -07 on 2020-11-01, not on 2020-03-08 as 2020a had it.
- The most recent winter(+08)/summer(+11) transition for Casey Station,
Antarctica was 2020-10-04 00:01.
- Remove obsolete files pacificnew, systemv, and yearistype.sh
from the distribution.
- Rebase to tzdata-2020a
- Morocco will spring forward on 2020-05-31 rather than
previously predicted 2020-05-24.
- Canada's Yukon region changed to year round UTC -07
effective 2020-03-08.
- America/Godthab was renamed to America/Nuuk.
Rebase to tzdata-2019c
- Fiji will observe DST from 2019-11-10 to 2020-01-12.
- Norfolk Island will begin observing Australian-style DST on 2019-10-06.
- Rebase to tzdata-2019a
- Palestine will start DST on 2019-03-30, rather than 2019-03-23 as
previously predicted.
- Metlakatla rejoined Alaska time on 2019-01-20, ending its observances
of Pacific standard time.
- Rebase to tzdata-2018i (includes changes from tzdata-2018h)
- São Tomé and Príncipe changed from UTC+01 to UTC+00 on 2019-01-01.
- Qyzylorda, Kazakhstan changed from UTC+06 to UTC+05 on 2018-12-21.
- Created a new zone Asia/Qostanay since Qostanay, Kazakhstan didn't
transition with the Qyzylorda change.
- Metlakatla, Alaska will observe PST for this winter only.
- Predict that Morocco will continue to adjust clocks around Ramadan.
- Also include predictions for Iran from 2038 through 2090.
- Rebase to tzdata-2018g
- Morocco will remain at UTC+1 rather than switching back to UTC+0 as
planned. This change is effective Octobober 28, 2018.
- Include changes introduced in tzdata-2018f
- Volgograd will change from UTC+03 to UTC+04 on 2018-10-28 at 02:00.
- Fiji will end DST on 2019-01-13 instead of the 2019-01-20 as
previously predicted.
- Most of Chile will end DST on the first Saturday in April at 24:00
and restart DST on the first Saturday in September at 24:00.
