Another time zone update...
Here we go again....
December 2007 cumulative time zone update for Microsoft Windows operating systems
http://support.microsoft.com/default.aspx/kb/942763
This update supersedes and replaces update 933360, which was released in August 2007. This update also includes additional time zone changes that were signed in to law after update 933360 was created. If you have already deployed update 933360, read the descriptions of the specific time zone changes that are addressed in this Microsoft Knowledge Base (KB) article to determine whether you must deploy this update immediately. If systems are not directly affected, you can schedule deployment at the next available opportunity. We recommend that you deploy the most current Windows cumulative time zone update to guarantee the consistency of the time zone database on all systems.
I read this and my head hurts - How to address time zone changes by using the Time Zone Data Update Tool for Microsoft Office Outlook:
http://support.microsoft.com/kb/931667/
Time zone changes in the December 2007 update:
• Arabic Standard Time:
Adjusts DST start dates and end dates for the Baghdad time zone for changes after the prior cumulative time zone update was created (August 2007).
• Australia:
Central Australia Standard Time
Australia Eastern Standard Time
Tasmania Standard Time
Adjusts DST start times and end times for these time zones so that they start and end on the same day. This was changed after the prior cumulative time zone update was created (August 2007).
• Egypt Standard Time:
Adjusts DST start dates and end dates for the Cairo time zone for changes after the prior cumulative time zone update was created (August 2007).
• Israel Standard Time:
Adjusts DST start and end dates for the Jerusalem time zone for changes after the prior cumulative time zone update was created (August 2007).
Note Updates for the Jerusalem time zone are not included in the Windows Vista package for this update. The Jerusalem time zone updates have been available in Windows Vista since Windows Vista was originally released.
• South America:
E. South America Standard Time
Central Brazilian Standard Time
Adjusts DST start dates and end dates for the Brasilia time zone and for the Manaus time zone for changes after the prior cumulative time zone update was created (August 2007).
• Venezuela Standard Time:
Adds a new time zone for the Caracas time zone for changes after the prior cumulative time zone update was created (August 2007).