[Bug 510131] [NEW] Thunderbird Lightning extension opening on wrong date

Bill Korb korb at qisc.com
Wed Jan 20 14:37:43 UTC 2010

Public bug reported:

Binary package hint: thunderbird

I'm seeing this problem with the following Thunderbird & Lightning
calendar extension versions:

Lightning 0.9 (build 2009040813) - package 0.9+nobinonly-0ubuntu2
Thunderbird (20090817)
Ubuntu 9.04

The problem is as follows: the date displayed on the today pane is off
by one day when I start thunderbird (it shows tomorrow's date instead of
today's). I have determined that this is caused by setting the timezone
in my preferences.

>From prefs.js:

user_pref("calendar.timezone.local", "floating");

This is the default value if I have not yet gone into Edit->Preferences
and changed my timezone. With this value, the date is correct.

user_pref("calendar.timezone.local", "America/Chicago");

This is what it is set to if I set my timezone on the Timezone tab in
the preferences dialog. After making this change, if I exit from
thunderbird then restart it, the date displayed is tomorrow's. In the
mini-day view if I click the left arrow to move the date backwards,
nothing happens. If I click the right arrow the date jumps forward two
days. If I click the round circle to jump back to "today's" date, it
resets to tomorrow's date.

If I quit from thunderbird, manually change the timezone value in my
prefs.js, and restart, the correct date is shown as "today".

ProblemType: Bug
Architecture: i386
DistroRelease: Ubuntu 9.04
NonfreeKernelModules: nvidia
Package: mozilla-thunderbird None [modified: /var/lib/dpkg/info/mozilla-thunderbird.list]
PackageArchitecture: all
 PATH=(custom, no user)
SourcePackage: thunderbird
Uname: Linux 2.6.28-17-generic i686
UnreportableReason: This is not a genuine Ubuntu package

** Affects: thunderbird (Ubuntu)
     Importance: Undecided
         Status: New

** Tags: apport-bug i386

Thunderbird Lightning extension opening on wrong date
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