The December 2013 DST Cumulative Update for Windows Operating Systems has been published on Microsoft Download Center. It contains the following changes:
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Mid-Atlantic Time:
The Mid-Atlantic time zone is deprecated in this update.
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Morocco Standard Time:
Morocco extended the 2013 DST End Date from September 29, 2013 to October 27, 2013. Beginning in 2014, the DST period in Morocco will begin at 2:00 A.M. on the last Sunday in March, and it will end at 3:00 A.M. on the last Sunday in October.
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Libya Standard Time:
Libya did not end DST in 2013. From 2014, it will stay at UTC+2 with no DST.
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Fiji Standard Time:
Fiji has changed its DST End Date in 2014 from January 26 to January 19.
For more information on these adjustments, refer to this Microsoft Knowledge Base article: http://support.microsoft.com/kb/2904266 .
