Article ID: 942763 - Last Review: June 30, 2011 - Revision: 9.5

December 2007 cumulative time zone update for Microsoft Windows operating systems

View products that this article applies to.
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Important 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.

Important This update has been superseded by 951072.
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Daylight saving time update

To obtain the most recent information about daylight saving time (DST), click the following article number to view the article in the Microsoft Knowledge Base:
951072  (http://support.microsoft.com/kb/951072/ ) August 2008 cumulative time zone update for Microsoft Windows operating systems


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.

Important Before you apply the update that is described in this article, be aware of potential issues that may affect Microsoft Outlook. For more information about these issues, click the following article number to view the article in the Microsoft Knowledge Base:
931667  (http://support.microsoft.com/kb/931667/ ) How to address the daylight saving time changes in 2007 by using the Time Zone Data Update Tool for Microsoft Office Outlook
Important
  • If you are running Microsoft Exchange Server in an Information Technology (IT) environment, you must take additional measures to guarantee the correct operation of Exchange Server. For more information about the Exchange daylight saving time (DST) update, click the following article number to view the article in the Microsoft Knowledge Base:
    941018  (http://support.microsoft.com/kb/941018/ ) How to address daylight saving time by using the Exchange Calendar Update Tool
  • Cumulative time zone updates contain only data that has changed for a specific region or that has been added to maintain parity with other operating system versions. Therefore, if a time zone key has been deleted, some original values may not be restored after you apply the cumulative zone update.

    We do not recommend that you delete any registry keys that are related to time zones. On a computer that has incomplete time zone keys, first restore the time zone keys from a known good backup. Then, apply the update.

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INTRODUCTION

The update that this article describes changes the time zone data to accommodate daylight saving time (DST) changes in several countries, as outlined in this article. This update also includes other DST-related changes, time zone-related changes, and settings-related changes. Some of these changes have occurred since the products that are listed in the "Applies to" section were originally released.

The update that this article describes is a cumulative update rollup that includes all the changes that were previously released in Microsoft Knowledge Base (KB) articles 928388, 929120, and 933360.

For more information about how DST changes may affect other Microsoft products, visit the following Microsoft Web site:
http://support.microsoft.com/gp/cp_dst (http://support.microsoft.com/gp/cp_dst)
For more information about how daylight saving time changes may affect other Microsoft products, click the following article number to view the article in the Microsoft Knowledge Base:
914387  (http://support.microsoft.com/kb/914387/ ) How to configure daylight saving time for Microsoft Windows operating systems
Note When you apply this update, you may receive the following message:
Update cannot be installed as a newer or same time zone update has already been installed on the system.
This message indicates that you have already applied the correct update or that Windows Updates or Microsoft Update has automatically installed this update. No additional action is required to update the Windows operating system software.

The update that this article describes is also supported by Windows XP Service Pack 3 (SP3).

Note This update is not included in Windows XP SP3. If you have already applied Windows XP SP2, and you then apply Windows XP SP3, you do not have to reapply this update. If you have not applied Windows XP SP2, and then you apply Windows SP3, you must apply this update after you apply Windows XP SP3.
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MORE INFORMATION

The following files are available for download from the Microsoft Download Center:

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Download
Download the Update for Windows Server 2003 package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=308D599A-164A-40F6-B2A2-5DD5728FE5B4)

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Download
Download the Update for Windows Server 2003 for Itanium-based Systems package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=0B4C350A-A995-40F3-B111-2EB0BDA676A8)

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Download
Download the Update for Windows Server 2003 x64 Edition package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=940AD40D-3088-4CD0-B0DC-F517594C904D)

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Download
Download the Update for Windows Vista package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=F75E30D4-3036-4970-BC16-48A96E1CEDC7)

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Download
Download the Update for Windows Vista for x64-based Systems package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=60B03B37-4A82-4EDC-A814-9AE0222C3A2A)

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Download
Download the Update for Windows XP package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=FBC1661D-E017-4A7F-9CDE-F44CAE1F8DC9)

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Download
Download the Update for Windows XP x64 Edition package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=F2F9CB5C-20CF-4786-A7ED-047843E4BA9C)

Release Date: November 27, 2007

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591  (http://support.microsoft.com/kb/119591/ ) How to obtain Microsoft support files from online services
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.
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Updates from the previous cumulative Windows time zone update

The following changes have been made since the previous Windows cumulative time zone update. This update was described in Microsoft Knowledge Base article 933360:
  • 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).

    Note This time zone update occurs on December 9, 2007 at 3:00:00.
Collapse this tableExpand this table
Registry subkey nameDisplay nameDaylight nameStandard nameDST startDST endValue of TZI subkey
Arabic Standard Time (GMT +03:00) Baghdad Arabic Daylight Time Arabic Standard Time April 1 at 3:00:00 First Monday in October at 4:00:00 TZI=hex:4c,ff,ff,ff,00,00,00,00,
c4,ff,ff,ff,00,00,0a,00,01,00,01,00,04,
00,00,00,00,00,00,00,00,00,04,00,00,
00,01,00,03,00,00,00,00,00,00,00
AUS Eastern Standard Time (GMT+10:00) Canberra, Melbourne, Sydney AUS Eastern Daylight Time AUS Eastern Standard Time First Sunday in October at 02:00:00 First Sunday in April at 03:00:00 TZI=hex:a8,fd,ff,ff,00,00,00,00,
c4,ff,ff,ff,00,00,04,00,00,00,01,00,03,00,
00,00,00,00,00,00,00,00,0a,00,00,00,
01,00,02,00,00,00,00,00,00,00
Cen. Australia Standard Time (GMT+09:30) Adelaide Cen. Australia Daylight Time Cen. Australia Standard Time First Sunday in October at 02:00:00First Sunday in April at 03:00:00TZI=hex:c6,fd,ff,ff,00,00,00,00,
c4,ff,ff,ff,00,00,04,00,00,00,01,00,
03,00,00,00,00,00,00,00,00,00,0a,00,
00,00,01,00,02,00,00,00,00,00,00,00
Central Brazilian Standard Time (GMT-04:00) Manaus Central Brazilian Daylight Time Central Brazilian Standard Time Second Sunday in October at 00:00:00 Third Sunday in February at 00:00:00 TZI=hex:f0,00,00,00,00,00,00,00,
c4,ff,ff,ff,00,00,02,00,00,00,03,00,00,
00,00,00,00,00,00,00,00,00,0a,00,00,00,
02,00,00,00,00,00,00,00,00,00
E. South America Standard Time (GMT-03:00) Brasilia E. South America Daylight Time E. South America Standard Time Second Sunday in October at 00:00:00 Third Sunday in February at 00:00:00 TZI=hex:b4,00,00,00,00,00,00,00,
c4,ff,ff,ff,00,00,02,00,00,00,03,00,00,00
,00,00,00,00,00,00,00,00,0a,00,00,
00,02,00,00,00,00,00,00,00,00,00
Egypt Standard Time (GMT+02:00) Cairo Egypt Daylight Time Egypt Standard Time Last Thursday in April at 23:59:59.999 Last Thursday in September at 23:59:59.999 TZI=hex:88,ff,ff,ff,00,00,00,00,
c4,ff,ff,ff,00,00,09,00,04,00,01,00,17
,00,3b,00,3b,00,00,00,00,00,04,00,04
,00,05,00,17,00,3b,00,3b,00,00,00
Israel Standard Time(GMT+02:00) Jerusalem Jerusalem Daylight Time Jerusalem Standard Time March 28, 2008 at 02:00:00October 5, 2008 at 02:00:00TZI=hex:88,ff,ff,ff,00,00,00,00,
c4,ff,ff,ff,d8,07,0a,00,00,00,05,00,02,00,00,00,00,
00,00,00,d8,07,03,00,00,00,1c,00,02,
00,00,00,00,00,00,00
SA Western Standard Time (GMT-04:00) La Paz SA Western Daylight Time SA Western Standard Time Not applicable Not applicableTZI=hex:f0,00,00,00,00,00,00,
00,c4,ff,ff,ff,00,00,00,00,00,00,00,00,00,00,00,00
,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00
Tasmania Standard Time (GMT+10:00) Hobart Tasmania Daylight Time Tasmania Standard Time First Sunday in October at 02:00:00First Sunday in April at 03:00:00 TZI=hex:30,FD,FF,FF,00,00,00,00,
C4,FF,FF,FF,00,00,04,00,00,00,01,00,03,00,00,00,00,
00,00,00,00,00,09,00,00,00,05,00,02,00,00,00,00,00,00,00
Venezuela Standard Time (GMT–04:30) Caracas Venezuela Daylight TimeVenezuela Standard Time December 9, 2007 at 24:00:00Not applicableTZI=hex:0e,01,00,00,00,00,00,
00,c4,ff,ff,ff,00,00,00,00,00,00,00,00,00,00,
00,00,00,00,00,00,00,00,00,00,00,00,00,00,
00,00,00,00,00,00,00,00
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December 2007 cumulative time zone update for Microsoft Windows operating systems

The following table outlines all the time zone changes that are included in this update.
Collapse this tableExpand this table
Registry subkey nameDisplay nameDaylight nameStandard nameDST startDST endValue of TZI subkey
Alaska Standard Time (GMT-09:00) Alaska Alaskan Daylight Time Alaskan Standard Time Second Sunday in March at 02:00:00 First Sunday in November at 02:00:00 TZI=hex:1c,02,00,00,00,00,00,00,
c4,ff,ff,ff,00,00,0b,00,00,00,01,00
,02,00,00,00,00,00,00,00,00,00,03,00,00,00
,02,00,02,00,00,00,00,00,00,00
Arabic Standard Time (GMT+03:00) Baghdad Arabic Daylight Time Arabic Standard Time April 1 at 3:00:00First Monday in October at 4:00:00 TZI=hex:4c,ff,ff,ff,00,00,00,00,
c4,ff,ff,ff,00,00,0a,00,01,00,01,00,04,
00,00,00,00,00,00,00,00,00,04,00,00,
00,01,00,03,00,00,00,00,00,00,00
Armenian Standard Time (GMT+04:00) Yerevan Armenian Daylight Time Armenian Standard Time Last Sunday in March at 2:00:00Last Sunday in October at 3:00:00TZI=hex:10,ff,ff,ff,00,00,00,00,
c4,ff,ff,ff,00,00,0a,00,00,00,05,00,03,
00,00,00,00,00,00,00,00,00,03,00,00,
00,05,00,02,00,00,00,00,00,00,00
Atlantic Standard Time (GMT-04:00) Atlantic Time (Canada) Atlantic Daylight Time Atlantic Standard Time Second Sunday in March at 02:00:00 First Sunday in November at 02:00:00 TZI=hex:f0,00,00,00,00,00,00,00,
c4,ff,ff,ff,00,00,0b,00,00,00,01,00,02,00
,00,00,00,00,00,00,00,00,03,00,00,00
,02,00,02,00,00,00,00,00,00,00
AUS Eastern Standard Time (GMT+10:00) Canberra, Melbourne, Sydney AUS Eastern Daylight Time AUS Eastern Standard Time First Sunday in October at 02:00:00 First Sunday in April at 03:00:00 TZI=hex:a8,fd,ff,ff,00,00,00,00,
c4,ff,ff,ff,00,00,04,00,00,00,01,00,03,00,
00,00,00,00,00,00,00,00,0a,00,00,00,
01,00,02,00,00,00,00,00,00,00
Azerbaijan Standard Time (GMT+04:00) Baku Azerbaijan Daylight Time Azerbaijan Standard Time Last Sunday in March at 04:00:00 Last Sunday in October at 05:00:00 TZI=hex:10,ff,ff,ff,00,00,00,00,
c4,ff,ff,ff,00,00,0a,00,00,00,05,00,05
,00,00,00,00,00,00,00,00,00,03,00
,00,00,05,00,04,00,00,00,00,00,00,00
Caucasus Standard Time (GMT+04:00) Caucasus Standard Time Caucasus Daylight Time Caucasus Standard Time Removed Removed TZI=hex:10,ff,ff,ff,00,00,00,00,
c4,ff,ff,ff,00,00,00,00,00,00,00,00,00,
00,00, 00,00,00,00,00,00,00,00,00,00,
00,00,00,00,00,00,00,00,00,00,00
Cen. Australia Standard Time (GMT+09:30) Adelaide Cen. Australia Daylight Time Cen. Australia Standard Time First Sunday in October at 02:00:00First Sunday in April at 03:00:00TZI=hex:c6,fd,ff,ff,00,00,00,00,
c4,ff,ff,ff,00,00,04,00,00,00,01,00,
03,00,00,00,00,00,00,00,00,00,0a,00,
00,00,01,00,02,00,00,00,00,00,00,00
Central Brazilian Standard Time (GMT-04:00) Manaus Central Brazilian Daylight Time Central Brazilian Standard Time Second Sunday in October at 00:00:00 Third Sunday in February at 00:00:00 TZI=hex:f0,00,00,00,00,00,00,00,
c4,ff,ff,ff,00,00,02,00,00,00,03,00,00,
00,00,00,00,00,00,00,00,00,0a,00,00,00,
02,00,00,00,00,00,00,00,00,00
Central Standard Time (GMT-06:00) Central Time (US & Canada) Central Daylight Time Central Standard Time Second Sunday in March at 02:00:00 First Sunday in November at 02:00:00 TZI=hex:68,01,00,00,00,00,00,00,
c4,ff,ff,ff,00,00,0b,00,00,00,01,00
,02,00,00,00,00,00,00,00,00,00,03,00,00,00,02
,00,02,00,00,00,00,00,00,00
Central Standard Time (Mexico) (GMT-06:00) Guadalajara, Mexico City, Monterrey Central Daylight Time (Mexico) Central Standard Time (Mexico) First Sunday in April at 02:00:00 Last Sunday in October at 02:00:00 TZI=hex:68,01,00,00,00,00,00,00,
c4,ff,ff,ff,00,00,0a,00,00,00,05,00,02,00,00
,00,00,00,00,00,00,00,04,00,00,00,01
,00,02,00,00,00,00,00,00,00
E. Europe Standard Time (GMT+02:00) Minsk E. Europe Daylight Time E. Europe Standard Time Last Sunday in March at 02:00:00 Last Sunday in October at 03:00:00 TZI=hex:88,ff,ff,ff,00,00,00,00,
c4,ff,ff,ff,00,00,0a,00,00,00,05,00
,03,00,00,00,00,00,00,00,00,00,03,00,00,00,05,00
,02,00,00,00,00,00,00,00
E. South America Standard Time (GMT-03:00) Brasilia E. South America Daylight Time E. South America Standard Time Second Sunday in October at 00:00:00 Third Sunday in February at 00:00:00 TZI=hex:b4,00,00,00,00,00,00,00,
c4,ff,ff,ff,00,00,02,00,00,00,05,00,00,00
,00,00,00,00,00,00,00,00,0a,00,00,
00,02,00,00,00,00,00,00,00,00,00
Eastern Standard Time (GMT-05:00) Eastern Time (US and Canada) Eastern Daylight Time Eastern Standard Time Second Sunday in March at 02:00:00 First Sunday in November at 02:00:00 TZI=hex:2c,01,00,00,00,00,00,00,
c4,ff,ff,ff,00,00,0b,00,00,00,01,00,02,00
,00,00,00,00,00,00,00,00,03,00
,00,00,02,00,02,00,00,00,00,00,00,00
Egypt Standard Time (GMT+02:00) Cairo Egypt Daylight Time Egypt Standard Time Last Thursday in April at 23:59:59.999 Last Thursday in September at 23:59:59.999 TZI=hex:88,ff,ff,ff,00,00,00,00,
c4,ff,ff,ff,00,00,09,00,04,00,01,00,17
,00,3b,00,3b,00,00,00,00,00,04,00,04
,00,05,00,17,00,3b,00,3b,00,00,00
Georgian Standard Time (GMT+03:00) Tbilisi Georgian Daylight Time Georgian Standard Time Removed Removed TZI=hex:4c,ff,ff,ff,00,00,00,00,
c4,ff,ff,ff,00,00,00,00,00,00,00,00,00
,00,00,00,00,00,00,00,00,00,00,00,00
,00,00,00,00,00,00,00,00,00,00,00
Greenwich Standard Time (GMT) Casablanca, Monrovia, Reykjavik Greenwich Daylight Time Greenwich Standard Time Not applicable Not applicable TZI=hex:00,00,00,00,00,00,00,00,
c4,ff,ff,ff,00,00,00,00,00,00,00,00,00,00
,00,00,00,00,00,00,00,00,00,00,00,00
,00,00,00,00,00,00,00,00,00,00
GTB Standard Time (GMT+02:00) Athens, Bucharest, Istanbul GTB Daylight Time GTB Standard Time Last Sunday in March at 3:00:00 Last Sunday in October at 04:00:00 TZI=hex:88,ff,ff,ff,00,00,00,00,
c4,ff,ff,ff,00,00,0a,00,00,00,05,00,04
,00,00,00,00,00,00,00,00,00,03,00,00
,00,05,00,03,00,00,00,00,00,00,00
Iran Standard Time (GMT+03:30) Tehran Iran Daylight Time Iran Standard Time Removed Removed TZI=hex:2e,ff,ff,ff,00,00,00,00,
c4,ff,ff,ff,00,00,00,00,00,00,00,00,00,00,00
,00,00,00,00,00,00,00,00,00,00,00
,00,00,00,00,00,00,00,00,00,00
Israel Standard Time(GMT+02:00) Jerusalem Jerusalem Daylight Time Jerusalem Standard Time March 28, 2008 at 02:00:00October 5, 2008 at 02:00:00TZI=hex:88,ff,ff,ff,00,00,00,00,
c4,ff,ff,ff,d8,07,0a,00,00,00,05,00,02,00,00,00,00,
00,00,00,d8,07,03,00,00,00,1c,00,02,
00,00,00,00,00,00,00
Jordan Standard Time (GMT+2:00) Amman Jordan Daylight Time Jordan Standard Time Last Thursday in March at 11:59:59 Last Friday in October at 01:00:00 TZI=hex:88,ff,ff,ff,00,00,00,00,
c4,ff,ff,ff,00,00,0a,00,05,00,05,00,01,00,
00,00,00,00,00,00,00,00,03,00,04,00,05,
00,17,00,3b,00,3b,00,e7,03
Middle East Standard Time (GMT+02:00) Beirut Middle East Daylight TimeMiddle East Standard Time Last Sunday in March at 00:00Last Saturday in October at 23:59:59.999 TZI=hex:88,ff,ff,ff,00,00,00,00,
c4,ff,ff,ff,00,00,0a,00,06,00,05,00,17,00,3b,00
,3b,00,e7,03,00,00,03,00,00,00,05
,00,00,00,00,00,00,00,00,00
Montevideo Standard Time (GMT-03:00) Montevideo Montevideo Daylight Time Montevideo Standard Time First Sunday in October at 02:00:00 Second Sunday in March at 02:00:00 TZI=hex:b4,00,00,00,00,00,00,00,
c4,ff,ff,ff,00,00,03,00,00,00,02,00,02,00
,00,00,00,00,00,00,00,00,0a,00,00,00
,01,00,02,00,00,00,00,00,00,00
Mountain Standard Time (GMT-07:00) Mountain Time (US and Canada) Mountain Daylight Time Mountain Standard Time Second Sunday in March at 02:00:00 First Sunday in November at 02:00:00 TZI=hex:a4,01,00,00,00,00,00,00,
c4,ff,ff,ff,00,00,0b,00,00,00,01,00,02,00,00,00
,00,00,00,00,00,00,03,00,00,00,02
,00,02,00,00,00,00,00,00,00
Mountain Standard Time (Mexico) (GMT-07:00) Chihuahua, La Paz, Mazatlan Mountain Daylight Time (Mexico) Mountain Standard Time (Mexico) First Sunday in April at 02:00:00 Last Sunday in October at 02:00:00 TZI=hex:a4,01,00,00,00,00,00,00,
c4,ff,ff,ff,00,00,0a,00,00,00,05,00,02,00,00,00,00,00,00
,00,00,00,04,00,00,00,01,00,02
,00,00,00,00,00,00,00
Myanmar Standard Time (GMT+06:30) Yangon (Rangoon) Myanmar Daylight Time Myanmar Standard Time Not applicable Not applicable TZI=hex:7a,fe,ff,ff,00,00,00,00,
c4,ff,ff,ff,00,00,00,00,00,00,00,00,00,00,00,00
,00,00,00,00,00,00,00,00,00,00,00
,00,00,00,00,00,00,00,00,00
Namibia Standard Time (GMT+02:00) Windhoek Namibia Daylight Time Namibia Standard Time First Sunday in April at 02:00:00 First Sunday in September at 02:00:00 TZI=hex:88,ff,ff,ff,00,00,00,00,
3c,00,00,00,00,00,09,00,00,00,01,00
,02,00,00,00,00,00,00,00,00,00,04,00,00
,00,01,00,02,00,00,00,00,00,00,00
New Zealand Standard Time (GMT+12:00) Auckland, Wellington New Zealand Daylight Time New Zealand Standard Time Last Sunday in September at 02:00:00 First Sunday in April at 03:00:00 TZI=hex:30,fd,ff,ff,00,00,00,00,
c4,ff,ff,ff,00,00,04,00,00,00,01,00,03,
00,00,00,00,00,00,00,00,00,09,00,00,00,
05,00,02,00,00,00,00,00,00,00
Newfoundland Standard Time (GMT-3:30) Newfoundland Newfoundland Daylight Time Newfoundland Standard Time Second Sunday in March at 00:01:00 First Sunday in November at 00:01:00 TZI=hex:d2,00,00,00,00,00,00,00,
c4,ff,ff,ff,00,00,0b,00,00,00,01,00,00
,00,01,00,00,00,00,00,00,00,03,00,00,00,02,00,00,00
,01,00,00,00,00,00
Pacific SA Standard Time (GMT-04:00) Santiago Pacific SA Daylight Time Pacific SA Standard Time Second Saturday in October at 23:59:59.999 Second Saturday in March at 23:59:59.999 TZI=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
Pacific Standard Time (GMT-08:00) Pacific Time (US & Canada) Pacific Daylight Time Pacific Standard Time Second Sunday in March at 02:00:00 First Sunday in November at 02:00:00 TZI=hex:e0,01,00,00,00,00,00,00,
c4,ff,ff,ff,00,00,0b,00,00,00,01,00,02,00
,00,00,00,00,00,00,00,00,03,00,00,00,02,00
,02,00,00,00,00,00,00,00
Pacific Standard Time (Mexico) (GMT-08:00) Tijuana, Baja California Pacific Daylight Time (Mexico) Pacific Standard Time (Mexico) First Sunday in April at 02:00:00 Last Sunday in October at 02:00:00 TZI=hex:e0,01,00,00,00,00,00,00,
c4,ff,ff,ff,00,00,0a,00,00,00,05,00,02,00,00,00,00,00
,00,00,00,00,04,00,00,00,01,00
,02,00,00,00,00,00,00,00
SA Pacific Standard Time (GMT-05:00) Bogota, Lima, Quito, Rio Branco SA Pacific Daylight Time SA Pacific Standard Time Not applicable Not applicable TZI=hex:2c,01,00,00,00,00,00,00,
c4,ff,ff,ff,00,00,00,00,00,00,00,00,00,00,00,00
,00,00,00,00,00,00,00,00,00,00,00,00,00
,00,00,00,00,00,00,00
SA Western Standard Time (GMT-04:00) La Paz SA Western Daylight Time SA Western Standard Time Not applicable Not applicableTZI=hex:f0,00,00,00,00,00,00,
00,c4,ff,ff,ff,00,00,00,00,00,00,00,00,00,00,00,00
,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00
Sri Lanka Standard Time (GMT+05:30) Sri Jayawardenepura Sri Lanka Daylight Time Sri Lanka Standard Time Not applicableNot applicable TZI=hex:b6,fe,ff,ff,00,00,00,00,
c4,ff,ff,ff,00,00,00,00,00,00,00,00,00,00,00
,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00
,00,00,00,00,00,00
Tasmania Standard Time (GMT+10:00) Hobart Tasmania Daylight TimeTasmania Standard Time First Sunday in October at 02:00:00First Sunday in April at 03:00:00 TZI=hex:30,FD,FF,FF,00,00,00,00,
C4,FF,FF,FF,00,00,04,00,00,00,01,00,03,00,00,00,00,
00,00,00,00,00,09,00,00,00,05,00,02,00,00,00,00,00,00,00
Venezuela Standard Time (GMT–04:30) Caracas Venezuela Daylight TimeVenezuela Standard Time December 9, 2007 at 24:00:00Not applicableTZI=hex:0e,01,00,00,00,00,00,
00,c4,ff,ff,ff,00,00,00,00,00,00,00,00,00,00,
00,00,00,00,00,00,00,00,00,00,00,00,00,00,
00,00,00,00,00,00,00,00
W. Australia Standard Time (GMT+08:00) Perth W. Australia Daylight TimeW. Australia Standard Time Last Sunday in October at 02:00:00Last Sunday in March at 03:00:00 TZI=hex:20,fe,ff,ff,00,00,00,00,
c4,ff,ff,ff,00,00,03,00,00,00,05,00,03,00
,00,00,00,00,00,00,00,00,0a,00,00,00,05,00
,02,00,00,00,00,00,00,00

Additional registry keys

In addition to the changes that are listed in the previous table, this update adds registry keys that store historical DST data for certain time zones. These keys are present in Windows Vista. The keys are included to keep parity in the Windows time zone registry structure.
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Alaskan Standard Time\Dynamic DST]
"FirstEntry"=dword:000007d6
"LastEntry"=dword:000007d7
"2006"=hex:1c,02,00,00,00,00,00,00,c4,ff,ff,ff,00,00,0a,00,00,00,05,00,02,00,\ 00,00,00,00,00,00,00,00,04,00,00,00,01,00,02,00,00,00,00,00,00,00
"2007"=hex:1c,02,00,00,00,00,00,00,c4,ff,ff,ff,00,00,0b,00,00,00,01,00,02,00,\ 00,00,00,00,00,00,00,00,03,00,00,00,02,00,02,00,00,00,00,00,00,00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Arabic Standard Time\Dynamic DST]
"FirstEntry"=dword:000007d6
"LastEntry"=dword:000007da
"2006"=hex:4c,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,0a,00,00,00,01,00,04,00,00,\ 00,00,00,00,00,00,00,04,00,00,00,01,00,03,00,00,00,00,00,00,00
"2007"=hex:4c,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,0a,00,01,00,01,00,04,00,00,\ 00,00,00,00,00,00,00,04,00,00,00,01,00,03,00,00,00,00,00,00,00
"2008"=hex:4c,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,0a,00,03,00,01,00,04,00,00,\ 00,00,00,00,00,00,00,04,00,02,00,01,00,03,00,00,00,00,00,00,00
"2009"=hex:4c,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,0a,04,00,01,00,04,00,00,00,\ 00,00,00,00,00,00,04,03,00,01,00,03,00,00,00,00,00,00,00
"2010"=hex:4c,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,0a,00,00,00,01,00,04,00,00,\ 00,00,00,00,00,00,00,04,00,00,00,01,00,03,00,00,00,00,00,00,00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Atlantic Standard Time\Dynamic DST]
"FirstEntry"=dword:000007d6
"LastEntry"=dword:000007d7
"2006"=hex:f0,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,0a,00,00,00,05,00,02,00,\ 00,00,00,00,00,00,00,00,04,00,00,00,01,00,02,00,00,00,00,00,00,00
"2007"=hex:f0,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,0b,00,00,00,01,00,02,00,\ 00,00,00,00,00,00,00,00,03,00,00,00,02,00,02,00,00,00,00,00,00,00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\AUS Eastern Standard Time\Dynamic DST]
"FirstEntry"=dword:00000x7d7
"LastEntry"=dword:00000x7d8
"2007"=hex:a8,fd,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,03,00,00,00,05,00,03,00,00,\ 00,00,00,00,00,00,00,0a,00,00,00,05,00,02,00,00,00,00,00,00,00
"2008"=hex:a8,fd,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,04,00,00,00,01,00,03,00,00,\ 00,00,00,00,00,00,00,0a,00,00,00,01,00,02,00,00,00,00,00,00,00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Cen. Australia Standard Time\Dynamic DST]
"FirstEntry"=dword00000x7d7
"LastEntry"=dword00000x7d8
"2007"=hex:c6,fd,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,03,00,00,00,05,00,03,00,00,\ 00,00,00,00,00,00,00,0a,00,00,00,05,00,02,00,00,00,00,00,00,00
"2008"=hex:c6,fd,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,04,00,00,00,01,00,03,00,00,\ 00,00,00,00,00,00,00,0a,00,00,00,01,00,02,00,00,00,00,00,00,00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Central Brazilian Standard Time\Dynamic DST]
"FirstEntry"=dword:000007d6
"LastEntry"=dword:000007d7
"2006"=hex:f0,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,02,00,00,00,02,00,02,00,\ 00,00,00,00,00,00,00,00,0b,00,00,00,01,00,00,00,00,00,00,00,00,00
"2007"=hex:f0,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,02,00,00,00,05,00,00,00,\ 00,00,00,00,00,00,00,00,0b,00,00,00,01,00,00,00,00,00,00,00,00,00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Central Standard Time\Dynamic DST]
"FirstEntry"=dword:000007d6
"LastEntry"=dword:000007d7
"2006"=hex:68,01,00,00,00,00,00,00,c4,ff,ff,ff,00,00,0a,00,00,00,05,00,02,00,\ 00,00,00,00,00,00,00,00,04,00,00,00,01,00,02,00,00,00,00,00,00,00
"2007"=hex:68,01,00,00,00,00,00,00,c4,ff,ff,ff,00,00,0b,00,00,00,01,00,02,00,\ 00,00,00,00,00,00,00,00,03,00,00,00,02,00,02,00,00,00,00,00,00,00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\E. South America Standard Time\Dynamic DST]
"FirstEntry"=dword:000007d6
"LastEntry"=dword:000007d7
"2006"=hex:b4,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,02,00,00,00,02,00,02,00,\ 00,00,00,00,00,00,00,00,0b,00,00,00,01,00,00,00,00,00,00,00,00,00
"2007"=hex:b4,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,02,00,00,00,05,00,00,00,\ 00,00,00,00,00,00,00,00,0b,00,00,00,01,00,00,00,00,00,00,00,00,00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Eastern Standard Time\Dynamic DST]
"FirstEntry"=dword:000007d6
"LastEntry"=dword:000007d7
"2006"=hex:2c,01,00,00,00,00,00,00,c4,ff,ff,ff,00,00,0a,00,00,00,05,00,02,00,\ 00,00,00,00,00,00,00,00,04,00,00,00,01,00,02,00,00,00,00,00,00,00
"2007"=hex:2c,01,00,00,00,00,00,00,c4,ff,ff,ff,00,00,0b,00,00,00,01,00,02,00,\ 00,00,00,00,00,00,00,00,03,00,00,00,02,00,02,00,00,00,00,00,00,00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Egypt Standard Time\Dynamic DST]
"FirstEntry"=dword:00000x7d6
"LastEntry"=dword:00000x7d8
"2006"=hex:88,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,09,00,04,00,05,00,17,00,3b,00,\ 3b,00,00,00,00,00,04,00,04,00,05,00,17,00,3b,00,3b,00,00,00
"2007"=hex:88,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,09,00,04,00,01,00,17,00,3b,00,\ 3b,00,00,00,00,00,04,00,04,00,05,00,17,00,3b,00,3b,00,00,00
"2008"=hex:88,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,09,00,04,00,05,00,17,00,3b,00,\ 3b,00,00,00,00,00,04,00,04,00,05,00,17,00,3b,00,3b,00,00,00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Iran Standard Time\Dynamic DST]
"FirstEntry"=dword:000007d5
"LastEntry"=dword:000007d6
"2005"=hex:2e,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,09,00,02,00,04,00,02,00,\ 00,00,00,00,00,00,00,00,03,00,00,00,01,00,02,00,00,00,00,00,00,00
"2006"=hex:2e,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,00,00,00,00,00,00,00,00,\ 00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Israel Standard Time\Dynamic DST]
"FirstEntry"=dword:000007d4
"LastEntry"=dword:000007e7
"2004"=hex:88,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,00,00,00,00,00,00,00,00,\ 00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00
"2005"=hex:88,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,d5,07,0a,00,00,00,09,00,02,00,\ 00,00,00,00,00,00,d5,07,04,00,00,00,01,00,02,00,00,00,00,00,00,00
"2006"=hex:88,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,d6,07,0a,00,00,00,01,00,02,00,\ 00,00,00,00,00,00,d6,07,03,00,00,00,1f,00,02,00,00,00,00,00,00,00
"2007"=hex:88,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,d7,07,09,00,00,00,10,00,02,00,\ 00,00,00,00,00,00,d7,07,03,00,00,00,1e,00,02,00,00,00,00,00,00,00
"2008"=hex:88,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,d8,07,0a,00,00,00,05,00,02,00,\ 00,00,00,00,00,00,d8,07,03,00,00,00,1c,00,02,00,00,00,00,00,00,00
"2009"=hex:88,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,d9,07,09,00,00,00,1b,00,02,00,\ 00,00,00,00,00,00,d9,07,03,00,00,00,1b,00,02,00,00,00,00,00,00,00
"2010"=hex:88,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,da,07,09,00,00,00,0c,00,02,00,\ 00,00,00,00,00,00,da,07,03,00,00,00,1a,00,02,00,00,00,00,00,00,00
"2011"=hex:88,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,db,07,0a,00,00,00,02,00,02,00,\ 00,00,00,00,00,00,db,07,04,00,00,00,01,00,02,00,00,00,00,00,00,00
"2012"=hex:88,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,dc,07,09,00,00,00,17,00,02,00,\ 00,00,00,00,00,00,dc,07,03,00,00,00,1e,00,02,00,00,00,00,00,00,00
"2013"=hex:88,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,dd,07,09,00,00,00,08,00,02,00,\ 00,00,00,00,00,00,dd,07,03,00,00,00,1d,00,02,00,00,00,00,00,00,00
"2014"=hex:88,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,de,07,09,00,00,00,1c,00,02,00,\ 00,00,00,00,00,00,de,07,03,00,00,00,1c,00,02,00,00,00,00,00,00,00
"2015"=hex:88,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,df,07,09,00,00,00,14,00,02,00,\ 00,00,00,00,00,00,df,07,03,00,00,00,1b,00,02,00,00,00,00,00,00,00
"2016"=hex:88,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,e0,07,0a,00,00,00,09,00,02,00,\ 00,00,00,00,00,00,e0,07,04,00,00,00,01,00,02,00,00,00,00,00,00,00
"2017"=hex:88,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,e1,07,09,00,00,00,18,00,02,00,\ 00,00,00,00,00,00,e1,07,03,00,00,00,1f,00,02,00,00,00,00,00,00,00
"2018"=hex:88,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,e2,07,09,00,00,00,10,00,02,00,\ 00,00,00,00,00,00,e2,07,03,00,00,00,1e,00,02,00,00,00,00,00,00,00
"2019"=hex:88,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,e3,07,0a,00,00,00,06,00,02,00,\ 00,00,00,00,00,00,e3,07,03,00,00,00,1d,00,02,00,00,00,00,00,00,00
"2020"=hex:88,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,e4,07,09,00,00,00,1b,00,02,00,\ 00,00,00,00,00,00,e4,07,03,00,00,00,1b,00,02,00,00,00,00,00,00,00
"2021"=hex:88,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,e5,07,09,00,00,00,0c,00,02,00,\ 00,00,00,00,00,00,e5,07,03,00,00,00,1a,00,02,00,00,00,00,00,00,00
"2022"=hex:88,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,e6,07,0a,00,00,00,02,00,02,00,\ 00,00,00,00,00,00,e6,07,04,00,00,00,01,00,02,00,00,00,00,00,00,00
"2023"=hex:88,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,00,00,00,00,00,00,00,00,\ 00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Jordan Standard Time\Dynamic DST]
"2006"=hex:88,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,09,00,05,00,05,00,01,00,\ 00,00,00,00,00,00,00,00,03,00,04,00,05,00,00,00,00,00,00,00,00,00
"2007"=hex:88,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,0a,00,05,00,05,00,01,00,\ 00,00,00,00,00,00,00,00,03,00,04,00,05,00,17,00,3b,00,3b,00,e7,03
"FirstEntry"=dword:000007d6
"LastEntry"=dword:000007d7

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Mountain Standard Time\Dynamic DST]
"FirstEntry"=dword:000007d6
"LastEntry"=dword:000007d7
"2006"=hex:a4,01,00,00,00,00,00,00,c4,ff,ff,ff,00,00,0a,00,00,00,05,00,02,00,\ 00,00,00,00,00,00,00,00,04,00,00,00,01,00,02,00,00,00,00,00,00,00
"2007"=hex:a4,01,00,00,00,00,00,00,c4,ff,ff,ff,00,00,0b,00,00,00,01,00,02,00,\ 00,00,00,00,00,00,00,00,03,00,00,00,02,00,02,00,00,00,00,00,00,00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Newfoundland Standard Time\Dynamic DST]
"FirstEntry"=dword:000007d6
"LastEntry"=dword:000007d7
"2006"=hex:d2,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,0a,00,00,00,05,00,00,00,\ 01,00,00,00,00,00,00,00,04,00,00,00,01,00,00,00,01,00,00,00,00,00
"2007"=hex:d2,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,0b,00,00,00,01,00,00,00,\ 01,00,00,00,00,00,00,00,03,00,00,00,02,00,00,00,01,00,00,00,00,00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\New Zealand Standard Time\Dynamic DST]
"2006"=hex:30,fd,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,03,00,00,00,03,00,03,00,00,00,00,00,00,00,00,00,0a,00,00,00,01,00,02,00,00,00,00,00,00,00
"2007"=hex:30,fd,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,03,00,00,00,03,00,03,00,00,00,00,00,00,00,00,00,09,00,00,00,05,00,02,00,00,00,00,00,00,00
"FirstEntry"=dword:000007d6
"LastEntry"=dword:000007d8
"2008"=hex:30,fd,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,04,00,00,00,01,00,03,00,00,00,00,00,00,00,00,00,09,00,00,00,05,00,02,00,00,00,00,00,00,00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Pacific Standard Time\Dynamic DST]
"FirstEntry"=dword:000007d6
"LastEntry"=dword:000007d7
"2006"=hex:e0,01,00,00,00,00,00,00,c4,ff,ff,ff,00,00,0a,00,00,00,05,00,02,00,\ 00,00,00,00,00,00,00,00,04,00,00,00,01,00,02,00,00,00,00,00,00,00
"2007"=hex:e0,01,00,00,00,00,00,00,c4,ff,ff,ff,00,00,0b,00,00,00,01,00,02,00,\ 00,00,00,00,00,00,00,00,03,00,00,00,02,00,02,00,00,00,00,00,00,00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Tasmania Standard Time\Dynamic DST]
"FirstEntry"=dword:00000x7d7
"LastEntry"=dword:00000x7d8
"2007"=hex:30,FD,FF,FF,00,00,00,00,C4,FF,FF,FF,00,00,04,00,00,00,01,00,03,00,00,00,00,00,00,00,00,00,09,00,00,00,05,00,02,00,00,00,00,00,00,00
"2008"=hex:30,FD,FF,FF,00,00,00,00,C4,FF,FF,FF,00,00,04,00,00,00,01,00,03,00,00,00,00,00,00,00,00,00,09,00,00,00,05,00,02,00,00,00,00,00,00,00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Venezuela Standard Time\Dynamic DST]
"FirstEntry"=dword:00000x7d6
"LastEntry"=dword:00000x7d7
"2006"=hex:f0,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,00,00,00,00,00,00,00,00,00,\ 00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00
"2007"=hex:0e,01,00,00,00,00,00,00,c4,ff,ff,ff,00,00,00,00,00,00,00,00,00,00,00,\ 00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\W. Australia Standard Time\Dynamic DST]
"FirstEntry"=dword:000007d5
"LastEntry"=dword:000007d7
"2005"=hex:20,fe,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,00,00,00,00,00,00,00,00,\ 00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00
"2006"=hex:20,fe,ff,ff,00,00,00,00,c4,ff,ff,ff,d6,07,01,00,00,00,01,00,00,00,\ 00,00,00,00,00,00,d6,07,0c,00,05,00,01,00,02,00,00,00,00,00,00,00
"2007"=hex:20,fe,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,03,00,00,00,05,00,03,00,\ 00,00,00,00,00,00,00,00,0a,00,00,00,05,00,02,00,00,00,00,00,00,00
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Update rollup information

Windows XP

Prerequisites
To apply this hotfix, you must have Windows XP Service Pack 2 (SP2) installed on the computer. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
322389  (http://support.microsoft.com/kb/322389/ ) How to obtain the latest Windows XP service pack
Restart requirement
You do not have to restart the computer after you apply this hotfix.
Update replacement information
Note You can install this cumulative update rollup even after you have installed any of the following previously-released updates.

This update replaces the following updates:
933360  (http://support.microsoft.com/kb/933360/ ) August 2007 cumulative time zone update for Microsoft Windows operating systems
931836  (http://support.microsoft.com/kb/931836/ ) February 2007 cumulative time zone update for Microsoft Windows operating systems
928388  (http://support.microsoft.com/kb/928388/ ) 2007 time zone update for Windows XP and Windows Server 2003
929120  (http://support.microsoft.com/kb/929120/ ) Windows Server 2003-based computers and Windows XP-based computers that are set to the West Australia time zone do not change to daylight saving time on December 3, 2006
File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.
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File nameFile versionFile sizeDateTimePlatform
Tzchange.exe5.1.2600.325260,41613-Nov-200711:02x86

Windows Server 2003

Prerequisites
To apply this hotfix, you must have Windows Server 2003 Service Pack 1 (SP1) or Windows Server 2003 SP2 installed on the computer.
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
889100  (http://support.microsoft.com/kb/889100/ ) How to obtain the latest service pack for Windows Server 2003
Restart requirement
You do not have to restart the computer after you apply this hotfix.
Update replacement information
Note You can install this cumulative update rollup even after you have installed any of the following previously-released updates.

This update replaces the following updates:
933360  (http://support.microsoft.com/kb/933360/ ) August 2007 cumulative time zone update for Microsoft Windows operating systems
931836  (http://support.microsoft.com/kb/931836/ ) February 2007 cumulative time zone update for Microsoft Windows operating systems
928388  (http://support.microsoft.com/kb/928388/ ) 2007 time zone update for Windows XP and Windows Server 2003
929120  (http://support.microsoft.com/kb/929120/ ) Windows Server 2003-based computers and Windows XP-based computers that are set to the West Australia time zone do not change to daylight saving time on December 3, 2006
File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.
Windows Server 2003 with SP1, x86-based versions
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File nameFile versionFile sizeDateTimePlatform
Tzchange.exe5.2.3790.303960,92805-Nov-200713:05x86
Windows Server 2003 with SP2, x86-based versions
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File nameFile versionFile sizeDateTimePlatform
Tzchange.exe5.2.3790.418360,92805-Nov-200712:21x86
Windows Server 2003 with SP1, Itanium-based versions
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File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Tzchange.exe5.2.3790.3039136,19206-Nov-200707:51IA-64SP1Not Applicable
Wtzchange.exe5.2.3790.303960,92806-Nov-200707:51x86SP1WOW
Windows Server 2003 with SP2, Itanium-based versions
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File nameFile versionFile sizeDateTimePlatform
Tzchange.exe5.2.3790.418360,92805-Nov-200712:21x86
Windows Server 2003, x64-based versions
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File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Tzchange.exe5.2.3790.303984,99206-Nov-200707:54x64SP1Not Applicable
Wtzchange.exe5.2.3790.303960,92806-Nov-200707:54x86SP1WOW
Windows Server 2003 with SP2, x64-based versions
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File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Tzchange.exe5.2.3790.418384,99206-Nov-200707:52x64SP2Not Applicable
Wtzchange.exe5.2.3790.418360,92806-Nov-200707:52x86SP2WOW

Windows Vista

Prerequisites
There are no prerequisites.
Restart requirement
You do not have to restart the computer after you apply this hotfix.
Update replacement information
You can install this cumulative update rollup even after you have installed any of the following previously-released updates.

Note As per Windows Vista behavior, 2008 DST updates in Windows Vista are not reflected until January 1, 2008. For more information about dynamic time zones in Windows, see the following Microsoft Knowledge Base article:
932955  (http://support.microsoft.com/kb/932955/ ) How to handle dates and times that include DST
This update replaces the following updates:
933360  (http://support.microsoft.com/kb/933360/ ) August 2007 cumulative time zone update for Microsoft Windows operating systems
931836  (http://support.microsoft.com/kb/931836/ ) February 2007 cumulative time zone update for Microsoft Windows operating systems
File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Windows Vista, 32-bit versions
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File nameFile versionFile sizeDateTimePlatform
Tzres.dll6.0.6000.207122,04830-Oct-200723:59x86
Tzupd.exe6.0.6000.2071218,94431-Oct-200701:46x86
Tzres.dll.mui6.0.6000.1658919,45631-Oct-200703:52Not Applicable
Windows Vista, 64-bit versions
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File nameFile versionFile sizeDateTimePlatform
Tzres.dll6.0.6000.207122,04830-Oct-200723:55x64
Tzupd.exe6.0.6000.2071220,99231-Oct-200701:57x64
Tzres.dll.mui6.0.6000.1658918,94431-Oct-200704:55Not Applicable
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Known issues

When you install this update on a computer that is running Windows Server 2003 with SP1, and you then install Windows Server 2003 SP2, Bucharest no longer appears in the display name of the GTB time zone. GTB Standard Time appears as "(GMT+02:00) Athens, Beirut, Istanbul, Minsk" instead of as "(GMT+02:00) Athens, Bucharest, Istanbul." This issue will be corrected in a future update. To work around this issue, you can use the Time Zone Editor (Tzedit.exe) to modify the display name. Or, you can type the following command at the command prompt:
%systemroot%\system32\tzchange.exe /F"GTB Standard Time" /N"(GMT+02:00) Athens, Bucharest, Istanbul"
The following file is available for download from the Microsoft Download Center:

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Download
Download the Tzedit.exe utility package now. (http://download.microsoft.com/download/5/8/a/58a208b7-7dc7-4bc7-8357-28e29cdac52f/TZEDIT.exe)

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591  (http://support.microsoft.com/kb/119591/ ) How to obtain Microsoft support files from online services
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.
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Technical revisions

The revision number and review dates for this article may reflect minor editorial or structural revisions to this content. The major technical revisions to this content are listed in this table.
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DateRevision
November 27, 2007 Original version
March 31, 2008 In both registry subkey tables, for Arabic Standard Time, DST start has been changed from "First Sunday in April..." to April 1 at 3:00:00"
June 9, 2008 New material at the beginning of the "More information" section
June 11, 2008 Changed hex key for Brasilia from "c4,ff,ff,ff,00,00,02,00,00,00,05,00,00,00" to "c4,ff,ff,ff,00,00,02,00,00,00,03,00,00,00"
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REFERENCES

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684  (http://support.microsoft.com/kb/824684/LN/ ) Description of the standard terminology that is used to describe Microsoft software updates
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APPLIES TO
  • Windows Vista Ultimate
  • Windows Vista Home Premium
  • Windows Vista Home Basic
  • Windows Vista Enterprise
  • Windows Vista Business
  • Windows Vista Business 64-bit Edition
  • Windows Vista Ultimate 64-bit Edition
  • Windows Vista Home Premium 64-bit Edition
  • Windows Vista Home Basic 64-bit Edition
  • Windows Vista Enterprise 64-bit Edition
  • Microsoft Windows XP Professional
  • Microsoft Windows XP Home Edition
  • Microsoft Windows Server 2003, Standard Edition (32-bit x86)
  • Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
  • Microsoft Windows Server 2003, Web Edition
  • Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
  • Microsoft Windows Server 2003, Standard x64 Edition
  • Microsoft Windows Server 2003, Enterprise x64 Edition
  • Microsoft Windows Server 2003, Datacenter x64 Edition
  • Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems
  • Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems
  • Microsoft Windows Server 2003 R2 Datacenter Edition (32-Bit x86)
  • Microsoft Windows Server 2003 R2 Datacenter x64 Edition
  • Microsoft Windows Server 2003 R2 Enterprise Edition (32-Bit x86)
  • Microsoft Windows Server 2003 R2 Enterprise x64 Edition
  • Microsoft Windows Server 2003 R2 Standard Edition (32-bit x86)
  • Microsoft Windows Server 2003 R2 Standard x64 Edition
  • Microsoft Windows Small Business Server 2003 R2 Premium Edition
  • Microsoft Windows Small Business Server 2003 R2 Standard Edition
  • Microsoft Windows Small Business Server 2003 Premium Edition
  • Microsoft Windows Small Business Server 2003 Standard Edition
  • Microsoft Windows XP Media Center Edition 2004
  • Microsoft Windows XP Media Center Edition 2005
  • Microsoft Windows XP Tablet PC Edition
  • Microsoft Windows XP Professional x64 Edition
  • Windows Fundamentals for Legacy PCs
  • Windows Embedded for Point of Service
  • Microsoft Windows XP Service Pack 3
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Keywords: 
atdownload kbwinxppresp3fix kbexpertisebeginner kbexpertiseinter kbwinvistapostrtmfix kbwinserv2003postsp2fix kbqfe KB942763
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