[Bug 1031836] Re: Wrong timezone data for Port-au-Prince, Haiti: DST offset is ignored

Adam Conrad adconrad at 0c3.net
Thu Sep 13 03:36:52 UTC 2012

Verified on hardy, natty, and oneiric.

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  Wrong timezone data for Port-au-Prince, Haiti: DST offset is ignored

Status in “tzdata” package in Ubuntu:
  Fix Released
Status in “tzdata” source package in Lucid:
  Fix Committed
Status in “tzdata” source package in Natty:
  Fix Committed
Status in “tzdata” source package in Oneiric:
  Fix Committed
Status in “tzdata” source package in Precise:
  Fix Released
Status in “tzdata” source package in Hardy:
  Fix Committed

Bug description:
  All users affected by this time zone.

  [Test Case]
  See https://wiki.ubuntu.com/StableReleaseUpdates?action=show#tzdata

  [Regression potentional]
  Minimal, no code change and addresses the latest upstream time differences.

  I am installing Ubuntu 12.04 LTS and despite choosing Port-au-Prince
  from the global map in Ubiquity, the time zone / resulting time is
  wrong. It will show for example 8AM when in fact it is 9AM. I've
  compared this with local time (radio, local mobile phones) and with
  different Internet sources to confirm.

  TimeAndDate.com reports the following correct information:

  Standard time zone:	UTC/GMT -5 hours
  Daylight saving time:	+1 hour
  Current time zone offset:	UTC/GMT -4 hours
  Time zone abbreviation:	EDT - Eastern Daylight Time
  Daylight Saving Time	DST started on dimanche 11 mars 2012, 02 h 00 local standard time
  DST ends on dimanche 4 novembre 2012, 02 h 00 local daylight time

  It's even more interesting that this change only happens *this year*:

  I believe any Ubuntu system (and probably other Debian derivatives)
  running in this timezone are 1 hoour late as a result.

  UPATE: This was fixed in tzdata 20120c1 and above, however such version won't be updated in Ubuntu for some time (low priority according to Canonical). To check your version:  dpkg -l tzdata

  A workaround is provided in the comments below.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: tzdata 2012b-1
  ProcVersionSignature: Ubuntu 3.2.0-27.43-generic 3.2.21
  Uname: Linux 3.2.0-27-generic x86_64
  ApportVersion: 2.0.1-0ubuntu11
  Architecture: amd64
  Date: Wed Aug  1 11:08:57 2012
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  PackageArchitecture: all
  SourcePackage: tzdata
  UpgradeStatus: No upgrade log present (probably fresh install)

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