Article ID: 931836
Article Last Modified on 12/3/2007
APPLIES TO
- Windows Vista Home Basic
- Windows Vista Home Premium
- Windows Vista Ultimate
- Windows Vista Business
- Windows Vista Enterprise
- Windows Vista Home Basic 64-bit Edition
- Windows Vista Home Premium 64-bit Edition
- Windows Vista Ultimate 64-bit Edition
- Windows Vista Enterprise 64-bit Edition
- Windows Fundamentals for Legacy PCs
- Microsoft Windows Embedded for Point of Service
- Microsoft Windows Server 2003 R2 Standard Edition (32-bit x86)
- Microsoft Windows Server 2003 R2 Enterprise Edition (32-Bit x86)
- Microsoft Windows Server 2003 R2 Datacenter Edition (32-Bit x86)
- Microsoft Windows Server 2003 R2 Standard x64 Edition
- Microsoft Windows Server 2003 R2 Enterprise x64 Edition
- Microsoft Windows Server 2003 R2 Datacenter x64 Edition
- Microsoft Windows Small Business Server 2003 R2 Standard Edition
- Microsoft Windows Small Business Server 2003 R2 Premium Edition
- Microsoft Windows Small Business Server 2003 Standard Edition
- Microsoft Windows Small Business Server 2003 Premium Edition
- Microsoft Windows Server 2003, Standard Edition (32-bit x86)
- Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
- Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
- Microsoft Windows Server 2003, Web Edition
- 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, Datacenter Edition for Itanium-Based Systems
- Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems
- Microsoft Windows XP Home Edition
- Microsoft Windows XP Professional
- Microsoft Windows XP Professional x64 Edition
- Microsoft Windows XP Tablet PC Edition 2005
- Microsoft Windows XP Tablet PC Edition
- Microsoft Windows XP Media Center Edition 2005
- Microsoft Windows XP Media Center Edition 2004
- Microsoft Windows XP Media Center Edition 2002
Important The update that is described in this Microsoft Knowledge Base article has been replaced by the update that is described in Microsoft Knowledge Base article 933360. To make sure that Microsoft Windows has the latest time zone data, install the update that is described in Microsoft Knowledge Base article 933360.
Note You do not have to uninstall the update that is described in this Microsoft Knowledge Base article before you install the update that is described in Microsoft Knowledge Base article 933360.
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
933360 August 2007 cumulative time zone update for Microsoft Windows operating systems
Important This update supersedes and replaces update 928388, released in November 2006. This update also includes additional time zone changes that were signed into law after update 928388 was created. Customers who have already deployed update 928388 should evaluate if any of the six specific time zone changes that are addressed in update 931836 merit deploying this update immediately. If systems are not directly affected, you can schedule deployment at the next available opportunity. We recommend that all customers standardize on 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 referenced in this article, you should be aware of potential issues that may affect Microsoft Office Outlook. For more information about these issues, click the following article number to view the article in the Microsoft Knowledge Base:
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 IT environment, you must take additional measures to guarantee the correct operation of Exchange Server. For more information about the Exchange DST update, click the following article number to view the article in the Microsoft Knowledge Base:
926666 Update for daylight saving time changes in 2007 for Exchange 2003 Service Pack 2
INTRODUCTION
Starting in the spring of 2007, daylight saving time (DST) start and end dates for the United States will transition to comply with the Energy Policy Act of 2005. DST dates in the United States will start three weeks earlier, at 2:00 A.M. on the second Sunday in March. DST will end one week later, at 2:00 A.M. on the first Sunday in November.
The update that this article describes changes the time zone data to account for the DST change for the United States. This update also includes other DST-related changes, time zone-related changes, and settings-related changes. Some of these changes will occur in 2007. 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 articles 928388 and 929120. This update also describes some additional changes since the last cumulative update in Microsoft Knowledge Base article 928388.
For more information about how daylight saving time changes may affect other Microsoft products, visit the following Microsoft Web site:
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 How to configure daylight saving time for the United States in 2007
Note When you apply this update, you may receive the following message:
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 your Windows operating system software.
RESOLUTION
Update information
The update that is described in this article has been replaced by the update that is described in Microsoft Knowledge Base article 933360. To make sure that Windows has the latest time zone data, install the update that is described in Knowledge Base article 933360. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
933360 August 2007 cumulative time zone update for Microsoft Windows operating systems
Prerequisites
To install this update on a computer that is running Microsoft Windows XP, you must have Windows XP Service Pack 2 installed.
Restart requirement
You do not have to restart the computer after you install this update.
Uninstalling the cumulative update rollup
Windows time zone updates for Windows XP and Windows Server 2003 include custom logic. This custom logic guarantees the correct installation of time zone updates and the correct state of the Windows time zone database. This custom logic also guarantees that when you uninstall the update, the time zone database returns to the DST rules that are in effect in the year 2006 across all time zones.
You can uninstall only the highest version of the cumulative update. When you uninstall this version of the cumulative update, the time zone database reverts to the state that existed before the first update was installed. For example, if you install update 928388 in December 2006, and then you install cumulative update 931836 in February 2007, you can uninstall only cumulative update 931836. When you uninstall cumulative update 931836, the time zone database will revert to its pre-December state. Additionally, if you install cumulative update 931836, Windows will not let you install update 928388.
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:
928388 2007 time zone update for Microsoft Windows operating systems
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 update 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
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Tzres.dll.mui | 6.0.6000.16483 | 19,456 | 09-May-2007 | 08:46 | Not Applicable |
Windows Vista, 64-bit versions
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Tzres.dll.mui | 6.0.6000.16483 | 18,944 | 09-May-2007 | 09:59 | Not Applicable |
Windows Server 2003, x86-based versions
| File name | File version | File size | Date | Time | Platform | SP requirement | Service branch |
|---|---|---|---|---|---|---|---|
| Tzchange.exe | 5.2.3790.642 | 58,368 | 02-Feb-2007 | 09:02 | x86 | None | RTMGDR |
| Tzchange.exe | 5.2.3790.642 | 58,368 | 02-Feb-2007 | 09:51 | x86 | None | RTMQFE |
| Tzchange.exe | 5.2.3790.2876 | 60,928 | 06-Feb-2007 | 09:17 | x86 | SP1 | SP1GDR |
| Tzchange.exe | 5.2.3790.2876 | 60,928 | 06-Feb-2007 | 09:55 | x86 | SP1 | SP1QFE |
| Tzchange.exe | 5.2.3790.4017 | 60,928 | 06-Feb-2007 | 12:37 | x86 | SP2 | SP2GDR |
| Tzchange.exe | 5.2.3790.4017 | 60,928 | 06-Feb-2007 | 14:42 | x86 | SP2 | SP2QFE |
Windows Server 2003, Itanium-based versions
| File name | File version | File size | Date | Time | Platform | SP requirement | Service branch |
|---|---|---|---|---|---|---|---|
| Tzchange.exe | 5.2.3790.642 | 124,416 | 06-Feb-2007 | 19:35 | IA-64 | None | RTMGDR |
| Wtzchange.exe | 5.2.3790.642 | 58,368 | 06-Feb-2007 | 19:35 | x86 | None | RTMGDR |
| Tzchange.exe | 5.2.3790.642 | 124,416 | 06-Feb-2007 | 19:34 | IA-64 | None | RTMQFE |
| Wtzchange.exe | 5.2.3790.642 | 58,368 | 06-Feb-2007 | 19:34 | x86 | None | RTMQFE |
| Tzchange.exe | 5.2.3790.2876 | 136,192 | 06-Feb-2007 | 19:35 | IA-64 | SP1 | SP1GDR |
| Wtzchange.exe | 5.2.3790.2876 | 60,928 | 06-Feb-2007 | 19:35 | x86 | SP1 | SP1GDR |
| Tzchange.exe | 5.2.3790.2876 | 136,192 | 06-Feb-2007 | 19:35 | IA-64 | SP1 | SP1QFE |
| Wtzchange.exe | 5.2.3790.2876 | 60,928 | 06-Feb-2007 | 19:35 | x86 | SP1 | SP1QFE |
| Tzchange.exe | 5.2.3790.4017 | 136,192 | 06-Feb-2007 | 20:01 | IA-64 | SP2 | SP2GDR |
| Wtzchange.exe | 5.2.3790.4017 | 60,928 | 06-Feb-2007 | 20:01 | x86 | SP2 | SP2GDR |
| Tzchange.exe | 5.2.3790.4017 | 136,192 | 06-Feb-2007 | 19:35 | IA-64 | SP2 | SP2QFE |
| Wtzchange.exe | 5.2.3790.4017 | 60,928 | 06-Feb-2007 | 19:35 | x86 | SP2 | SP2QFE |
Windows Server 2003 and Windows XP, x64-based versions
| File name | File version | File size | Date | Time | Platform | SP requirement | Service branch |
|---|---|---|---|---|---|---|---|
| Tzchange.exe | 5.2.3790.2876 | 84,992 | 06-Feb-2007 | 19:34 | x64 | SP1 | SP1GDR |
| Wtzchange.exe | 5.2.3790.2876 | 60,928 | 06-Feb-2007 | 19:34 | x86 | SP1 | SP1GDR |
| Tzchange.exe | 5.2.3790.2876 | 84,992 | 06-Feb-2007 | 19:34 | x64 | SP1 | SP1QFE |
| Wtzchange.exe | 5.2.3790.2876 | 60,928 | 06-Feb-2007 | 19:34 | x86 | SP1 | SP1QFE |
| Tzchange.exe | 5.2.3790.4017 | 84,992 | 06-Feb-2007 | 20:02 | x64 | SP2 | SP2GDR |
| Wtzchange.exe | 5.2.3790.4017 | 60,928 | 06-Feb-2007 | 20:02 | x86 | SP2 | SP2GDR |
| Tzchange.exe | 5.2.3790.4017 | 84,992 | 06-Feb-2007 | 19:33 | x64 | SP2 | SP2QFE |
| Wtzchange.exe | 5.2.3790.4017 | 60,928 | 06-Feb-2007 | 19:33 | x86 | SP2 | SP2QFE |
Windows XP with Service Pack 2
| File name | File version | File size | Date | Time | Platform | SP requirement | Service branch |
|---|---|---|---|---|---|---|---|
| Tzchange.exe | 5.1.2600.3073 | 60,416 | 29-Jan-2007 | 08:58 | x86 | SP2 | SP2GDR |
| Tzchange.exe | 5.1.2600.3073 | 60,416 | 29-Jan-2007 | 09:25 | x86 | SP2 | SP2QFE |
Updates from the previous cumulative Windows time zone update
The following changes have been made since the previous cumulative Windows time zone update. This was cumulative update 928388, and it was for Windows XP and Windows Server 2003:
- Central Brazilian Standard Time and E. South America Standard Time
Legal confirmation of 2007 DST laws was not received in time to include in prior cumulative time zone update. This update also sets the correct time to 00:00:00 for both time zones.
- Iran Standard Time
Legal confirmation that DST is no longer used was not received in time to include in prior cumulative time zone update.
- Namibia
Correct DST start and end dates from prior cumulative time zone update.
- Newfoundland Standard Time
Adoption of the U.S. and Canada 2007 DST rules were signed into law after the prior cumulative time zone update was created.
- W. Australia Standard Time
DST trial period was signed into law after the prior cumulative time zone update was created.
| Registry subkey name | Display name | Daylight name | Standard name | DST start | DST end | Value of TZI subkey |
|---|---|---|---|---|---|---|
| Central Brazilian Standard Time | (GMT-04:00) Manaus | Central Brazilian Daylight Time | Central Brazilian Standard Time | First Sunday in November at 00:00:00 | Last Sunday in February at 00:00:00 | TZI=hex:f0,00,00,00,00,00,00,00, c4,ff,ff,ff,00,00,02,00,00,00,05,00 |
| E. South America Standard Time | (GMT-03:00) Brasilia | E. South America Daylight Time | E. South America Standard Time | First Sunday in November at 00:00:00 | Last 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 |
| 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 |
| 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 |
| Newfoundland Standard Time | (GMT-3:30) Newfoundland | Newfoundland Daylight Time | Newfoundland Standard Time | Second Sunday of March at 00:01:00 | First Sunday of November at 00:01:00 | TZI=d2,00,00,00,00,00,00,00, c4,ff,ff,ff,00,00,0b,00,00,00,01,00 |
| W. Australia Standard Time | (GMT+08:00) Perth | W. Australia Daylight Time | W. Australia Standard Time | Last Sunday in October at 02:00:00 | Last 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 |
Time zones that are updated in Windows Vista
Other time zone updates that are being included with this hotfix for earlier versions and that are not listed in the following table have already been included in Windows Vista.
| Registry subkey name | Display name | Daylight name | Standard name | DST start | DST end | Value of TZI subkey |
|---|---|---|---|---|---|---|
| Central Brazilian Standard Time | (GMT-04:00) Manaus | Central Brazilian Daylight Time | Central Brazilian Standard Time | First Sunday in November at 00:00:00 | Last Sunday in February at 00:00:00 | TZI=hex:f0,00,00,00,00,00,00,00, c4,ff,ff,ff,00,00,02,00,00,00,05,00 |
| E. South America Standard Time | (GMT-03:00) Brasilia | E. South America Daylight Time | E. South America Standard Time | First Sunday in November at 00:00:00 | Last 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 |
| 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 |
| 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 |
| Newfoundland Standard Time | (GMT-3:30) Newfoundland | Newfoundland Daylight Time | Newfoundland Standard Time | Second Sunday of March at 00:01:00 | First Sunday of 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 |
| W. Australia Standard Time | (GMT+08:00) Perth | W. Australia Daylight Time | W. Australia Standard Time | Last Sunday in October at 02:00:00 | Last 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 |
February 2007 cumulative DST and time zone settings
The following table outlines all the time zone changes that are included in this update.
| Registry subkey name | Display name | Daylight name | Standard name | DST start | DST end | Value 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 |
| 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 |
| AUS Eastern Standard Time | (GMT+10:00) Canberra, Melbourne, Sydney | AUS Eastern Daylight Time | AUS Eastern Standard Time | Unchanged | Last Sunday in March at 03:00:00 | TZI=hex:a8,fd,ff,ff,00,00,00,00, c4,ff,ff,ff,00,00,03,00,00,00,05,00,03,00 |
| 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 |
| Caucasus Standard Time | (GMT+04:00) Yerevan | Caucasus Daylight Time | Caucasus Standard Time | Last Sunday in March at 02:00:00 | Last Sunday in October at 03:00:00 | TZI=hex:10,ff,ff,ff,00,00,00,00, c4,ff,ff,ff,00,00,0a,00,00,00,05,00,03,00 |
| Cen. Australia Standard Time | (GMT+09:30) Adelaide | Cen. Australia Daylight Time | Cen. Australia Standard Time | Unchanged | Last Sunday in March at 03:00:00 | TZI=hex:c6,fd,ff,ff,00,00,00,00, c4,ff,ff,ff,00,00,03,00,00,00,05,00,03,00,00 |
| Central Brazilian Standard Time | (GMT-04:00) Manaus | Central Brazilian Daylight Time | Central Brazilian Standard Time | First Sunday in November at 00:00:00 | Last Sunday in February at 00:00:00 | TZI=hex:f0,00,00,00,00,00,00,00, c4,ff,ff,ff,00,00,02,00,00,00,05,00,00 |
| 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 |
| 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 |
| 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 |
| E. South America Standard Time | (GMT-03:00) Brasilia | E. South America Daylight Time | E. South America Standard Time | First Sunday in November at 00:00:00 | Last 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 |
| 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 |
| 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,00,00,09,00,04,00,05,00,17 |
| 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 |
| 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 |
| GTB Standard Time | (GMT+02:00) Athens, Bucharest, Istanbul | GTB Daylight Time | GTB Standard Time | Last Sunday of 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 |
| 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 |
| Israel Standard Time | (GMT+02:00) Jerusalem | Jerusalem Daylight Time | Jerusalem Standard Time | March 30, 2007 at 02:00:00 | September 16, 2007 at 02:00:00 | TZI=hex:88,ff,ff,ff,00,00,00,00, c4,ff,ff,ff,00,00,09,00,00,00,03,00,02,00,00,00,00 |
| Jordan Standard Time | (GMT+2:00) Amman | Jordan Daylight Time | Jordan Standard Time | Last Thursday in March at 0:00:00 | Last Friday in September at 01:00:00 | TZI=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 |
| Middle East Standard Time | (GMT+02:00) Beirut | Middle East Daylight Time | Middle East Standard Time | Last Sunday in March at 00:00 | Last 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| New Zealand Standard Time | (GMT+12:00) Auckland, Wellington | New Zealand Daylight Time | New Zealand Standard Time | First Sunday in October at 02:00:00 | Third Sunday in March at 03:00:00 | TZI=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 |
| Newfoundland Standard Time | (GMT-3:30) Newfoundland | Newfoundland Daylight Time | Newfoundland Standard Time | Second Sunday of March at 00:01:00 | First Sunday of 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| Sri Lanka Standard Time | (GMT+05:30) Sri Jayawardenepura | Sri Lanka Daylight Time | Sri Lanka Standard Time | Not applicable | Not 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 |
| Tasmania Standard Time | (GMT+10:00) Hobart | Tasmania Daylight Time | Tasmania Standard Time | Unchanged | Last Sunday in March at 03:00:00 | TZI=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 |
| W. Australia Standard Time | (GMT+08:00) Perth | W. Australia Daylight Time | W. Australia Standard Time | Last Sunday in October at 02:00:00 | Last 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 |
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 and 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\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\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\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\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\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\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
Mexico time zones
Three new time zones have been added for Mexico on Windows XP and Windows Server 2003 to keep the time zone databases in parity with Vista. The new time zones are required because some time zones that Mexico previously shared U.S. and with Canada are no longer shared. This is because of the new DST rules that are in effect for the U.S. and for Canada. When a computer that is set to Mexico Standard Time or to Mexico Standard Time 2 installs this update, the computer will be automatically set to the new time zone that is listed in the following table. However, this is not true for computers that are set to the GMT-08:00 time zone (Pacific Standard Time). If applicable, these computers must be manually set to the new Pacific Standard Time (Mexico) time zone.
| 2006 Time Zone Name | 2006 Display name | 2007 Time Zone name | 2007 Display Name |
|---|---|---|---|
| Mexico Standard Time | (GMT-06:00) Guadalajara, Mexico City, Monterrey | Central Standard Time (Mexico) | (GMT-06:00) Guadalajara, Mexico City, Monterrey - New |
| Mexico Standard Time 2 | (GMT-07:00) Chihuahua, La Paz, Mazatlan | Mountain Standard Time (Mexico) | (GMT-07:00) Chihuahua, La Paz, Mazatlan - New |
| Not applicable | Not applicable | Pacific Standard Time (Mexico) | (GMT-08:00) Tijuana, Baja California |
MORE INFORMATION
Known issues
When you install this update on a computer that is running Windows Server 2003 with Service Pack 1, and you then install Windows Server 2003 Service Pack 2, 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:
![[GRAPHIC: Download]](/wiki/index.php?title=File:Download.gif){kind=small}
Download the Tzedit.exe utility package now.
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 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. For more information about the terms that are used to describe software updates, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates
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.
| Date | Revisions |
|---|---|
| February 8, 2007 | Original version |
| February 13, 2007 | Updated the table in the "Mexico time zones" section |
| February 17, 2007 | Added new file list for packages released 14-Feb-2007 |
| February 23, 2007 |
The following changes were made to this article:
|
| February 27, 2007 | Added Windows XP Tablet PC Edition to "Applies to" section |
| February 28, 2007 |
The following changes were made to this article:
|
| March 5, 2007 |
The following changes were made to this article:
|
| May 8, 2007 | Added a note about an error message to the end of the "Introduction" section. |
| May 16, 2007 | Added the "Known Issues" section. |
| June 26, 2007 | Added Windows Vista update information. |
| June 29, 2007 | Made Windows Vista update information public (It was outsourcer) and added line "Other time zone updates that are being included with this hotfix for earlier versions and that are not listed in the following table have already been included in Windows Vista." Also corrected titles in first two KB ref links in the article. |
| July 9, 2007 | Added the Important note to the top of the article referencing Microsoft Knowledge Base article 933360. |
Additional query words: DST 2007 dst2007
Keywords: kbresolve kbwinxppresp3fix kbexpertiseinter atdownload kbinfo kbhotfixserver kbqfe kbpubtypekc KB931836
