[Bug 1325949] Re: Add note to Debconf template about unintuitive inverted Etc/GMT offsets

[Launchpad Bug Tracker]

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 <bdrung at ubuntu.com>  Wed, 10 May 2023 00:26:05 +0200

** Changed in: tzdata (Ubuntu)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1325949

Title:
  Add note to Debconf template about unintuitive inverted Etc/GMT
  offsets

Status in tzdata package in Ubuntu:
  Fix Released
Status in tzdata package in Debian:
  Fix Released

Bug description:
  Looks like GMT[+-}<number> timezones have signs swapped.

  My local timezone is Europe/Tallinn

  When timezone is set to "Europe/Tallinn", everything is ok:
  # dpkg-reconfigure tzdata -> Europe/Tallinn
  # date
  Tue Jun  3 14:34:21 EEST 2014

  # date +%z
  +0300

  # date -u
  Tue Jun  3 11:34:59 UTC 2014

  I need to set timezone to GMT+2, to avoid dailight savings time.
  When I set timezone to "GMT+2", things fall apart. Timezone is shown GMT+2/GMT-2. Clock is set to GMT-2.
  # dpkg-reconfigure tzdata -> Etc/GMT+2

  # date
  Tue Jun  3 09:36:21 GMT+2 2014

  # date +%z
  -0200

  # date -u
  Tue Jun  3 11:37:43 UTC 2014

  When I set timezone to "GMT-2", then it's turned around. Timezone is shown GMT-2/GMT+2. Clock is set to GMT+2.
  #dpkg-reconfigure tzdata -> Etc/GMT-2

  # date
  Tue Jun  3 13:39:35 GMT-2 2014

  # date +%z
  +0200

  # date -u
  Tue Jun  3 11:39:56 UTC 2014

  # lsb_release -rd
  Description:    Ubuntu 12.04.4 LTS
  Release:        12.04

  # apt-cache policy tzdata
  tzdata:
    Installed: 2014c-0ubuntu0.12.04
    Candidate: 2014c-0ubuntu0.12.04
    Version table:
   *** 2014c-0ubuntu0.12.04 0
          500 http://ee.archive.ubuntu.com/ubuntu/ precise-updates/main amd64 Packages
          100 /var/lib/dpkg/status
       2012e-0ubuntu0.12.04.1 0
          500 http://security.ubuntu.com/ubuntu/ precise-security/main amd64 Packages
       2012b-1 0
          500 http://ee.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages

  # apt-get update
  # apt-get upgrade
  Reading package lists... Done
  Building dependency tree
  Reading state information... Done
  0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

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