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December 2012 DST Cumulative Update for Windows operating systems

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The December
2012 DST Cumulative update for Windows operating systems has been published on Microsoft Download Center. It contains the following changes:

  • Bahia Standard Time:
    Starting in 2012, Bahia Standard Time will no longer have DST.
  • Azores Standard Time:
    Changes reflect the end of DST on October 28, 2012 for Azores Standard Time. These changes were released as KB2769756.  This update includes the changes for DST for Azores Standard Time in Windows 8 and Windows Server 2012. Additionally, this update includes the changes found in KB2769756. The new rules for DST for 2013 and onwards were released as part the October 2012 cumulative time zone update in KB2756822.
  • Fiji Standard Time:
    The government of Fiji has announced new DST rules for 2012 through 2013. DST starts at 2:00 A.M. on Sunday October 21, 2012 and ends at 3:00 A.M. on Sunday January 20, 2013. This update applies to Windows 8, Windows Server 2012, Windows 7, Windows Server 2008 R2 and down. Additionally, the changes that are included in the October 2012 cumulative time zone update that is described in KB2756822 are found in this update.
  • Jordan Standard Time:
    Changes the UTC offset for Jordan Standard Time from (UTC+2) to (UTC+3). Therefore, the display name of the time zone is changed to (UTC+03:00) Amman. From 2013 onwards, Jordan Standard Time will no longer have DST.

 For more information on these adjustments, refer to this Microsoft KnowledgeBase article:   support.microsoft.com/kb/2779562