This bug was fixed in the package tzdata - 2023c-4exp1ubuntu1
---------------
tzdata (2023c-4exp1ubuntu1) mantic; urgency=medium
* Merge with Debian experimental. Remaining changes:
- Ship 2023c ICU timezone data which are utilized by PHP in tzdata-icu
- Add autopkgtest test case for ICU timezone data
- Do not rename NEWS into changelog.gz, this fixes a build failure on
moment-timezone.js
- Point Vcs-Browser/Git to Launchpad
- generate_debconf_templates: Work around AttributeError on icu import
tzdata (2023c-4exp1) experimental; urgency=medium
* Drop /usr/share/zoneinfo/posix (identical to /usr/share/zoneinfo)
(LP: #2008076)
* Split right/* timezones into separate tzdata-legacy package (LP: #2008076)
* Drop providing tzdata-bookworm from tzdata
tzdata (2023c-4) unstable; urgency=medium
* Sort timezones naturally in debconf
* Add explanation for plus/minus used by Etc/GMT timezones
(Closes: #540305, LP: #1325949)
* Build tzdata with PACKRATLIST=zone.tab. In combination with
PACKRATDATA=backzone (which is used since 2022g-3), time zones that differ
pre-1970 and had been resurrected will not incur changes to data from 1970
on. This also removes Asia/Hanoi again. (LP: #2017999)
* Update Croatian debconf translation. Thanks to Tomislav Krznar.
tzdata (2023c-3) unstable; urgency=medium
* test_timezone_conversions: Print all failures before failing
* Add Romanian debconf translation. Thanks to Remus-Gabriel Chelu
(Closes: #1034094)
* Add Language metadata to all debconf translation files
* Convert Pacific/Ponape to Pacific/Pohnpei on upgrade
* Convert Asia/Ujung_Pandang to Asia/Makassar on upgrade
* Convert Pacific/Truk to Pacific/Chuuk on upgrade
* Fix or drop wrong translations
* Check debconf translation files for inconsistencies
* Fix German translation of Christmas and Easter Island
-- Benjamin Drung <bdr...@ubuntu.com> Wed, 10 May 2023 00:26:05 +0200
** Changed in: tzdata (Ubuntu)
Status: Confirmed => Fix Released
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https://bugs.launchpad.net/bugs/2017999
Title:
tzdata 2023c-0ubuntu0.22.04.1 might have some inconsistency
Status in tzdata package in Ubuntu:
Fix Released
Status in tzdata source package in Focal:
New
Status in tzdata source package in Jammy:
New
Status in tzdata source package in Kinetic:
New
Status in tzdata source package in Lunar:
New
Bug description:
[ Impact ]
Recent updates have been using `PACKRATDATA=backzone` in order to add
all out-of-scope lower-quality pre-1970 data back that existed in
earlier tzadata releases (see bug #2003797). However it also leads to
time zones like America/Ensenada, Atlantic/Jan_Mayen, Europe/Tiraspol,
and Pacific/Enderbury to change:
compared to 2023c-0ubuntu0.22.04.0
- America/Ensenada->only dst changes until 2022 are shown
- Atlantic/Jan_Mayen->now valid data is shown
- Europe/Tiraspol->only dst changes until 2010 are shown
[ Test Plan ]
Add an autopkgtest test case for post-1970 symlink consistency: Check
that the timezones for today and in half a year (= to cover DST
changes) do not change compared to building them without
`PACKRATDATA=backzone`.
The mentioned timezones that differed can also be tested manually.
Running following commands should have the same output (the output
mentioned here is from tzdata 2023c-0ubuntu0.22.04.1):
```
$ TZ=America/Ensenada date -d "2023-04-28 13:49 Z"
Fri Apr 28 05:49:00 PST 2023
$ TZ=Atlantic/Jan_Mayen date -d "2023-04-28 13:49 Z"
Fri Apr 28 12:49:00 -01 2023
$ TZ=Europe/Tiraspol date -d "2023-04-28 13:49 Z"
Fri Apr 28 16:49:00 MSK 2023
```
[ Where problems could occur ]
Timezone data could be wrong. Systems with incorrect timezone set may
observe unexpected time shift when updating the package.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/tzdata/+bug/2017999/+subscriptions
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