** Patch added: "tzdata_2023c-0ubuntu0.20.04.2_v2.debdiff" https://bugs.launchpad.net/ubuntu/focal/+source/python-tz/+bug/2017999/+attachment/5674253/+files/tzdata_2023c-0ubuntu0.20.04.2_v2.debdiff
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to tzdata in Ubuntu. https://bugs.launchpad.net/bugs/2017999 Title: tzdata 2023c-0ubuntu0.22.04.1 might have some inconsistency Status in python-tz package in Ubuntu: Fix Released Status in tzdata package in Ubuntu: Fix Released Status in python-tz source package in Focal: Invalid Status in tzdata source package in Focal: New Status in python-tz source package in Jammy: Invalid Status in tzdata source package in Jammy: New Status in python-tz source package in Kinetic: Invalid Status in tzdata source package in Kinetic: New Status in python-tz source package in Lunar: Fix Committed Status in tzdata source package in Lunar: Fix Committed 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/python-tz/+bug/2017999/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
