Daylight saving time (DST) update for Chile

The government of Chile has extended DST for 2012 to end on April 28, 2012 and start on September 1, 2012 [Official Decree]. This hotfix updates Windows DST support for the [(UTC -4:00) Santiago] time zoneso that DST ends on April 28, 2012 at 23:59:59.999 and the clock reverts to 23:00:00.000. The update also includes the change for DST to start September 1, 2012 at 23:59:59.999 and the clock to advance to 01:00:00.000 of September 2.

A supported hotfix is now available from Microsoft. To obtain the hotfix, click the link at the top of this page or contact Microsoft Customer Support Services. For a complete list of Microsoft Customer Support Services telephone numbers and information about support costs, visit the following Microsoft website:
http://support.microsoft.com/contactus/?ws=support

In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

NoteThis update is available only as a hotfix.

For information about the impact of this change (including configuring Outlook, see Microsoft CTS LaTAm team�s blog:�http://blogs.technet.com/b/latam/archive/2012/02/27/chile-dst-2012-fallback.aspx

Registry key information

Chile

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Pacific SA Standard Time]

"TZI"=hex:f0,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,04,00,06,00,05,00,17,00,3b,\

00,3b,00,e7,03,00,00,09,00,06,00,01,00,17,00,3b,00,3b,00,e7,03


[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Pacific SA Standard Time\Dynamic DST]

"FirstEntry"=dword:000007d7

"LastEntry"=dword:000007dd

"2007"=hex:f0,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,03,00,06,00,02,00,17,00,\

3b,00,3b,00,e7,03,00,00,0a,00,06,00,02,00,17,00,3b,00,3b,00,e7,03

"2008"=hex:f0,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,03,00,06,00,05,00,17,00,\

3b,00,3b,00,e7,03,00,00,0a,00,06,00,02,00,17,00,3b,00,3b,00,e7,03

"2009"=hex:f0,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,03,00,06,00,02,00,17,00,\

3b,00,3b,00,e7,03,00,00,0a,00,06,00,02,00,17,00,3b,00,3b,00,e7,03

"2010"=hex:f0,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,04,00,06,00,01,00,17,00,\

3b,00,3b,00,e7,03,00,00,0a,00,06,00,02,00,17,00,3b,00,3b,00,e7,03

"2011"=hex:f0,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,05,00,06,00,01,00,17,00,\

3b,00,3b,00,e7,03,00,00,08,00,06,00,03,00,17,00,3b,00,3b,00,e7,03

"2012"=hex:f0,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,04,00,06,00,05,00,17,00,\

3b,00,3b,00,e7,03,00,00,09,00,06,00,01,00,17,00,3b,00,3b,00,e7,03

"2013"=hex:f0,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,03,00,06,00,02,00,17,00,\

3b,00,3b,00,e7,03,00,00,0a,00,06,00,02,00,17,00,3b,00,3b,00,e7,03

Restart requirement

You may have to restart your system after you install this hotfix.

Note This is a "FAST PUBLISH" article created directly from within the Microsoft support organization. The information contained herein is provided as-is in response to emerging issues. As a result of the speed in making it available, the materials may include typographical errors and may be revised at any time without notice. See Terms of Use for other considerations.