%3CLINGO-SUB%20id%3D%22lingo-sub-311068%22%20slang%3D%22en-US%22%3ESeptember%202010%20Daylight%20Saving%20Time%20(DST)%20Cumulative%20Update%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-311068%22%20slang%3D%22en-US%22%3E%0A%20%26lt%3Bmeta%20http-equiv%3D%22Content-Type%22%20content%3D%22text%2Fhtml%3B%20charset%3DUTF-8%22%20%2F%26gt%3B%3CSTRONG%3E%20First%20published%20on%20TECHNET%20on%20Oct%2006%2C%202010%20%3C%2FSTRONG%3E%20%3CBR%20%2F%3E%3CH3%20id%3D%22toc-hId-1477650395%22%20id%3D%22toc-hId-1541464387%22%3EThe%20September%20Cumulative%20Update%20(CU)%26nbsp%3Bfor%20DST%20contains%20three%20changes%20%3A%3C%2FH3%3E%3CBR%20%2F%3E%3CP%3EFor%20US%20Eastern%20Standard%20time%20(UTC%20-5%3A00%2C%20Indiana%20East)%2C%20the%20CU%20adds%20DST%20support%20and%20updates%20history%20from%202006%20through%202009%20to%20reflect%20the%20change%20in%20which%20DST%20is%20applicable%20for%20the%20whole%20state%20and%20not%20per-county.%26nbsp%3B%20Specifically%2C%20for%202005%20and%20earlier%2C%20this%20timezone%20does%20not%20have%20DST.%26nbsp%3B%20For%202006%20and%20beyond%2C%20this%20time%20zone%20now%20contains%20DST.%3C%2FP%3E%3CBR%20%2F%3E%3CP%3EFor%20the%20Middle%20East%20standard%20time%2C%20(UTC%20%2B2%3A00%20Beirut)%2C%20the%20September%20CU%20fixes%20the%20ambiguity%20in%20the%20DST%20end-date%20transition%20time.%26nbsp%3B%20It%20was%20the%20last%20Sunday%20in%20October%20at%2000%3A00%3A00%3A000.%26nbsp%3B%20Now%20its%20the%20last%20Saturday%20in%20October%20at%2023%3A59%3A59%3A999.%3C%2FP%3E%3CBR%20%2F%3E%3CP%3E%3C%2FP%3E%3CBR%20%2F%3E%3CP%3E%3C%2FP%3E%3CBR%20%2F%3E%3CP%3EFor%20the%20Namibia%20standard%20timezone%2C%20the%20September%20CU%20updates%20the%20display%20name%20to%20reflect%20that%20this%20is%20a%20UTC%20%2B1%3A00%20timezone%2C%20and%20not%20a%20UTC%20%2B2%3A00%20timezone.%26nbsp%3B%20However%2C%26nbsp%3Bthe%20underlying%20DST%20rules%20and%20start%2Fend%20dates%20have%20not%20changed.%26nbsp%3B%20We%20are%20investigating%20a%20request%20to%20modify%20those%20in%26nbsp%3B%20a%20future%20CU.%3C%2FP%3E%3CBR%20%2F%3E%3CP%3E%3CBR%20%2F%3E%3C%2FP%3E%0A%20%20%3CP%3EFor%20more%20information%2C%20see%20the%20following%20KB%26nbsp%3Barticle%20%3A%20%3CA%20href%3D%22http%3A%2F%2Fsupport.microsoft.com%2Fkb%2F2158563%22%20target%3D%22_blank%22%20rel%3D%22noopener%20noreferrer%20noopener%20noreferrer%22%3E%20http%3A%2F%2Fsupport.microsoft.com%2Fkb%2F2158563%3C%2FA%3E%3C%2FP%3E%3CBR%20%2F%3E%3CP%3E%3C%2FP%3E%0A%20%0A%3C%2FLINGO-BODY%3E%3CLINGO-TEASER%20id%3D%22lingo-teaser-311068%22%20slang%3D%22en-US%22%3EFirst%20published%20on%20TECHNET%20on%20Oct%2006%2C%202010%20The%20September%20Cumulative%20Update%20(CU)%26nbsp%3Bfor%20DST%20contains%20three%20changes%20%3A%26nbsp%3BFor%20US%20Eastern%20Standard%20time%20(UTC%20-5%3A00%2C%20Indiana%20East)%2C%20the%20CU%20adds%20DST%20support%20and%20updates%20history%20from%202006%20through%202009%20to%20reflect%20the%20change%20in%20which%20DST%20is%20applicable%20for%20the%20whole%20state%20and%20not%20per-county.%3C%2FLINGO-TEASER%3E
Microsoft
First published on TECHNET on Oct 06, 2010

The September Cumulative Update (CU) for DST contains three changes :


For US Eastern Standard time (UTC -5:00, Indiana East), the CU adds DST support and updates history from 2006 through 2009 to reflect the change in which DST is applicable for the whole state and not per-county.  Specifically, for 2005 and earlier, this timezone does not have DST.  For 2006 and beyond, this time zone now contains DST.


For the Middle East standard time, (UTC +2:00 Beirut), the September CU fixes the ambiguity in the DST end-date transition time.  It was the last Sunday in October at 00:00:00:000.  Now its the last Saturday in October at 23:59:59:999.




For the Namibia standard timezone, the September CU updates the display name to reflect that this is a UTC +1:00 timezone, and not a UTC +2:00 timezone.  However, the underlying DST rules and start/end dates have not changed.  We are investigating a request to modify those in  a future CU.



For more information, see the following KB article : http://support.microsoft.com/kb/2158563