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Article ID: 928388 - Last Review: December 21, 2012 - Revision: 25.0

Daylight saving time update

Important The update in this article is superseded by the cumulative update in Microsoft Knowledge Base article 955839. 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:
955839  (http://support.microsoft.com/kb/955839/ ) December 2008 cumulative time zone update for Microsoft Windows operating systems
You do not have to remove any previously installed DST update to apply this cumulative update.

Important Updates are available on Windows Update and on Microsoft Update that enable Windows to correctly apply the changes for daylight saving time (DST) 2007 and later. After these updates are applied, Windows correctly calculates the current offsets from UTC time to local time on the computer when DST occurs. The offsets include the offsets for the base APIs and for the networking time-related APIs. You can visit the Microsoft Update Web site by visiting the following Microsoft Web site:
http://update.microsoft.com (http://update.microsoft.com)
For more information about the Automatic Updates feature in Windows, click the following article number to view the article in the Microsoft Knowledge Base:
294871  (http://support.microsoft.com/kb/294871/ ) Description of the Automatic Updates feature in Windows

Before you apply the 2007 cumulative time zone update for Windows operating systems, 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  (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

On This Page

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 (2:00 A.M. on the second Sunday in March) and will end one week later (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 United States DST change. This time zone update will also include changes for other related DST changes, time zone behavior, and settings. Some of these changes will occur in 2007, and some have occurred since these versions of Windows were originally released. The update that this article describes also includes some changes that have previously been released as individual hotfixes. An example of this is the Sri Lanka change in time zone offset. This update will also include some changes that have been individually documented in Microsoft Knowledge Base articles.

These updated time zone definitions will also be included with Windows Vista.

For more information about how daylight saving time 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 how to manually update computers that are running Microsoft Windows XP or Microsoft Windows 2000, 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 the United States in 2007

Resolution

Updates are available on Windows Update and on Microsoft Update that enable Windows to correctly apply the changes for DST 2007 and later years. After these updates are applied, Windows correctly calculates the current offsets from UTC time to local time on the computer when DST occurs. The offsets include the offsets for the base APIs and for the networking time-related APIs. You can visit the Microsoft Update Web site by visiting the following Microsoft Web site:
http://update.microsoft.com (http://update.microsoft.com)
For more information about the Automatic Updates feature in Windows, click the following article number to view the article in the Microsoft Knowledge Base:
294871  (http://support.microsoft.com/kb/294871/ ) Description of the Automatic Updates feature in Windows

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.
Microsoft Windows Server 2003, x86-based versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Tzchange.exe5.2.3790.61558,36818-Nov-200612:03x86NoneRTMGDR
Tzchange.exe5.2.3790.61558,36818-Nov-200612:10x86NoneRTMQFE
Tzchange.exe5.2.3790.283660,92818-Nov-200612:29x86SP1SP1GDR
Tzchange.exe5.2.3790.283660,92818-Nov-200612:42x86SP1SP1QFE
Microsoft Windows Server 2003, x64-based versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Tzchange.exe5.2.3790.283684,99218-Nov-200616:04x64SP1SP1GDR
Wtzchange.exe5.2.3790.283660,92818-Nov-200616:04x86SP1WOW
Tzchange.exe5.2.3790.283684,99218-Nov-200615:59x64SP1SP1QFE
Wtzchange.exe5.2.3790.283660,92818-Nov-200615:59x86SP1WOW
Microsoft Windows Server 2003, Itanium-based versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Tzchange.exe5.2.3790.615124,41618-Nov-200615:59IA-64NoneRTMGDR
Wtzchange.exe5.2.3790.61558,36818-Nov-200615:59x86NoneWOW
Tzchange.exe5.2.3790.615124,41618-Nov-200615:59IA-64NoneRTMQFE
Wtzchange.exe5.2.3790.61558,36818-Nov-200615:59x86NoneWOW
Tzchange.exe5.2.3790.2836136,19218-Nov-200616:04IA-64SP1SP1GDR
Wtzchange.exe5.2.3790.283660,92818-Nov-200616:04x86SP1WOW
Tzchange.exe5.2.3790.2836136,19218-Nov-200615:59IA-64SP1SP1QFE
Wtzchange.exe5.2.3790.283660,92818-Nov-200615:59x86SP1WOW
Microsoft Windows XP update information
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Tzchange.exe5.1.2600.303760,41618-Nov-200611:44x86SP2SP2GDR
Tzchange.exe5.1.2600.303760,41618-Nov-200613:19x86SP2SP2QFE

Restart requirement

You do not have to restart the computer after you apply this update.

DST and time zone settings

Collapse this tableExpand this table
Registry subkey nameDisplay nameDaylight nameStandard nameDST startDST endValue of TZI subkey
Alaska Standard Time(GMT-09:00) AlaskaAlaskan Daylight TimeAlaskan Standard TimeSecond Sunday in March at 02:00:00First Sunday in November at 02:00:00TZI=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
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, SydneyAUS Eastern Daylight TimeAUS Eastern Standard TimeUnchangedLast Sunday in March at 03:00:00TZI=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
Azerbaijan Standard Time(GMT+04:00) BakuAzerbaijan Daylight TimeAzerbaijan Standard TimeLast Sunday in March at 04:00:00Last Sunday in October at 05:00:00TZI=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) YerevanCaucasus Daylight TimeCaucasus Standard TimeLast Sunday in March at 02:00:00Last Sunday in October at 03:00:00TZI=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
Cen. Australia Standard Time (GMT+09:30) AdelaideCen. Australia Daylight TimeCen. Australia Standard TimeUnchangedLast Sunday in March at 03:00:00TZI=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
Central Brazilian Standard Time (GMT-04:00) ManausCentral Brazilian Daylight TimeCentral Brazilian Standard TimeFirst Sunday in November at 02:00:00Last Sunday in February at 02:00:00TZI=hex:f0,00,00,00,00,00,00,00,c4,ff,ff,ff
,00,00,02,00,00,00,05,00,02,00,00,
00,00,00,00,00,00,00,0b,00,00,00,
01,00,02,00,00,00,00,00,00,00
Central Standard Time(GMT-06:00) Central Time (US & Canada)Central Daylight TimeCentral Standard TimeSecond Sunday in March at 02:00:00First Sunday in November at 02:00:00TZI=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, MonterreyCentral Daylight Time (Mexico)Central Standard Time (Mexico)First Sunday in April at 02:00:00Last Sunday in October at 02:00:00TZI=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) MinskE. Europe Daylight TimeE. Europe Standard TimeLast Sunday in March at 02:00:00Last Sunday in October at 03:00:00TZI=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) BrasiliaE. South America Daylight TimeE. South America Standard TimeFirst Sunday in November at 02:00:00Last Sunday in February at 02:00:00TZI=hex:b4,00,00,00,00,00,00,00,c4
,ff,ff,ff,00,00,02,00,00,00,05,00,02,00
,00,00,00,00,00,00,00,00,0b,00,00,00,
01,00,02,00,00,00,00,00,00,00
Eastern Standard Time(GMT-05:00) Eastern Time (US and Canada)Eastern Daylight TimeEastern Standard TimeSecond Sunday in March at 02:00:00First Sunday in November at 02:00:00TZI=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) CairoEgypt Daylight TimeEgypt Standard TimeLast Thursday in April at 23:59:59.999Last Thursday in September at 23:59:59.999TZI=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
Georgian Standard Time (GMT+03:00) TbilisiGeorgian Daylight TimeGeorgian Standard TimeNot applicableNot applicableTZI=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, ReykjavikGreenwich Daylight TimeGreenwich Standard TimeNot applicableNot applicableTZI=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 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,00,00,00,05,00,04,00,00,00,00,
00,00,00,00,00,03,00,00,00,05,00,03,00,00,00,00,00,00,00
Israel Standard Time (GMT+02:00) JerusalemJerusalem Daylight TimeJerusalem Standard TimeMarch 30, 2007 at 02:00:00September 16, 2007 at 02:00:00TZI=hex:88,ff,ff,ff,00,00,00,00,c4
,ff,ff,ff,00,00,09,00,00,00,03,00,02
,00,00,00,00,00,00,00,00,00,03,00
,05,00,05,00,02,00,00,00,00,00,00,00
Jordan Standard Time(GMT+2:00) AmmanJordan Daylight TimeJordan Standard TimeLast Thursday in March at 0:00:00Last Friday in September at 01:00:00TZI=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
Middle East Standard Time(GMT+02:00) BeirutMiddle East Daylight TimeMiddle East Standard TimeLast Sunday in March at 00:00Last Saturday in October at 23:59:59.999TZI=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) MontevideoMontevideo Daylight TimeMontevideo Standard TimeFirst Sunday in October at 02:00:00Second Sunday in March at 02:00:00TZI=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 TimeMountain Standard TimeSecond Sunday in March at 02:00:00First Sunday in November at 02:00:00TZI=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, MazatlanMountain Daylight Time (Mexico)Mountain Standard Time (Mexico)First Sunday in April at 02:00:00Last Sunday in October at 02:00:00TZI=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 TimeMyanmar Standard TimeNot applicableNot applicableTZI=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) WindhoekNamibia Daylight TimeNamibia Standard TimeFirst Sunday in September at 02:00:00First Sunday in April 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, WellingtonNew Zealand Daylight TimeNew Zealand Standard TimeFirst Sunday in October at 02:00:00Third Sunday in March at 03:00:00TZI=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
Pacific SA Standard Time (GMT-04:00) SantiagoPacific SA Daylight TimePacific SA Standard TimeSecond Saturday in October at 23:59:59.999Second Saturday in March at 23:59:59.999TZI=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 TimePacific Standard TimeSecond Sunday in March at 02:00:00First Sunday in November at 02:00:00TZI=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 CaliforniaPacific Daylight Time (Mexico)Pacific Standard Time (Mexico)First Sunday in April at 02:00:00Last Sunday in October at 02:00:00TZI=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 BrancoSA Pacific Daylight TimeSA Pacific Standard TimeNot applicableNot applicableTZI=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
Sri Lanka Standard Time (GMT+05:30) Sri JayawardenepuraSri Lanka Daylight TimeSri Lanka Standard TimeNot applicableNot applicableTZI=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) HobartTasmania Daylight TimeTasmania Standard TimeUnchangedLast Sunday in March at 03:00:00TZI=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,00,00,00,01,00,02,00,00,00
,00,00,00,00
For more information about DST changes in 2007, and for links to information about other Microsoft products and time zone changes, visit the following Microsoft Web site:
http://support.microsoft.com/gp/cp_dst (http://support.microsoft.com/gp/cp_dst)

Additional registry keys in Windows Vista

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. The additional registry keys are not used by versions of Windows earlier than Windows Vista. The information is provided for other programs that may use the information to predict or to compute future and past time zone information.
[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: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\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\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,00,00,00,05,00,02,00,00,00,00,00,00,00,00,00,04,00,00,00,01,00,02,00,00,00,00,00,00,00
"2007"=hex:d2,00,00,00,00,00,00,00,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\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
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
824684  (http://support.microsoft.com/kb/824684/ ) Description of the standard terminology that is used to describe Microsoft software updates

Revisions

Collapse this tableExpand this table
VersionDateChange
1.021-Nov-2006Original version
2.022-Nov-2006Corrected the file attributes tables
2.122-Nov-2006Corrected typographical error
3.029 Nov-2006Added an Atlantic Standard Time entry in the DST and time zone settings table between Alaska Standard Time and AUS Eastern Standard Time entries
4.029-Nov-2006Made corrections to Greenwich Standard Time and GTB Standard Time entries
5.004-Dec-2006Changed DST and time zone settings for Central Brazilian Standard Time
6.004-Dec-2006Metadata keyword changes
7.012-Dec-2006Changed DST and time zone settings for Egypt Standard Time
7.119-Dec-2006Added Windows Server 2003 R2 to "Applies To" section
8.027-Dec-2006Complete article rewrite
8.127-Dec-2006Added caveats for customers who use Exchange and Outlook in their environments and refer to http://office.microsoft.com/en-us/outlook/HA102086071033.aspx
9.019-Jan-2007Updated with warnings
9.119-Jan-2007Added main DST 2007 link to the "DST and time zone settings" section
9.219-Jan-2007Added cross-reference to KB article 914387
10.022-Jan-2007MSINTERNAL section updates
10.122-Jan-007Changed DST and time zone settings for Middle East and Montevideo time zones
10.226-Jan-2007Added revision list, MCE, WePOS, and WinFLP to "Applies To" section
11.09-Feb-2007Changed DST and time zone settings (hex value) for Namibia
12.013-Feb-2007Revised "Resolution" section so that it points to point to KB article 931836
13.01-Mar-2007Updated DST link in the "Introduction" section and in the "DST and time zone settings" section
14.023-Mar-2007Made changes per Windows Server 2003 SP2 sweep. (Added service pack section.)
15.027-Mar-2007Corrected TZI value for Nambia.
15.13-Apr-2007Corrected TZI value for Nambia.
16.06-Aug-2007Updated references to point to article 933360
20.027-Sep-2007Updated the "Important" note in the beginning of the article and the "Resolution" secton of the article. That update states that future DST updates are available from Windows Update and Microsoft Update. Also added the "Restart requirement " section to the "Resolution" section.
14 Jan 2008updated references to point from 933350 to 942763
9 Sept 2008Removed references to 942763. Added reference to 951072.
24 Jan 2009Removed references to 951072. Added reference to 955839.

Applies to
  • 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, Enterprise Edition for Itanium-based Systems
  • Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems
  • Microsoft Windows Server 2003, Standard x64 Edition
  • Microsoft Windows Server 2003, Enterprise x64 Edition
  • Microsoft Windows Server 2003, Datacenter x64 Edition
  • Microsoft Windows XP Home Edition
  • Microsoft Windows XP Professional
  • Microsoft Windows XP Professional x64 Edition
  • Microsoft Windows Server 2003 R2 Standard x64 Edition
  • Microsoft Windows Server 2003 R2 Standard Edition (32-bit x86)
  • Microsoft Windows Server 2003 R2 Enterprise x64 Edition
  • Microsoft Windows Server 2003 R2 Enterprise Edition (32-Bit x86)
  • Microsoft Windows Server 2003 R2 Datacenter x64 Edition
  • Microsoft Windows Server 2003 R2 Datacenter Edition (32-Bit x86)
  • Microsoft Windows Small Business Server 2003 Standard Edition
  • Microsoft Windows Small Business Server 2003 Premium Edition
  • Windows Embedded for Point of Service
  • Windows Fundamentals for Legacy PCs
  • Microsoft Windows XP Media Center Edition 2004
  • Microsoft Windows XP Media Center Edition 2005
Keywords: 
kbresolve kbwinserv2003sp2fix kbexpertiseinter kbwinserv2003presp2fix kbwinxppresp3fix atdownload kbbug kbfix kbqfe kbinfo KB928388
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