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Article ID: 824995 - Last Review: February 24, 2009 - Revision: 6.0

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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Important The update in this article is superseded by the cumulative update in Microsoft Knowledge Base article 955839.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.

On This Page

SYMPTOMS

When the time zone is set to (GMT+02:00) Cairo in Microsoft Windows Server 2003, in Microsoft Windows XP, or in Microsoft Windows 2000, daylight saving time may start or end on an incorrect date and at an incorrect time.

For example, a computer's clock may change to daylight saving time on the first Friday of May at 02:00, and it may change from daylight saving time on the last Wednesday of September at 02:00. However, in Egypt, daylight saving time starts on the last Friday in April at midnight (00:00:00) and ends on the last Friday in September at midnight (00:00:00).

The behavior occurs if the date and time properties are set to the following:
  • Time Zone is set to (GMT+02:00) Cairo.
  • The Automatically adjust clock for daylight saving changes check box is selected.

CAUSE

This problem occurs because the information in the registry for this time zone is incorrect. The reference data is stored in the following subkey:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Egypt Standard Time
The currently in-use information is stored in the following subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\TimeZoneInformation
The time zone information in both of these locations is in binary format. We do not recommend that you resolve this problem by modifying the registry.

RESOLUTION

Windows Server 2003 service pack information

To resolve this problem, obtain the latest service pack for Windows Server 2003. 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

Windows Server 2003 hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=support (http://support.microsoft.com/contactus/?ws=support)
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

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, 32-bit versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Cstegypt.dll5.2.3790.1995,63216-Aug-200418:09x86
Cstegypt.dll5.2.3790.1995,63216-Aug-200418:09x86
Windows Server 2003, Itanium-based versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Cstegypt.dll5.2.3790.1998,70416-Aug-200418:09IA-64
Cstegypt.dll5.2.3790.1998,70416-Aug-200418:09IA-64
Windows Server 2003 with Service Pack 1, 32-bit versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Cstegypt.dll5.2.3790.26886,14424-Apr-200618:09x86
Cstegypt.dll5.2.3790.26886,14424-Apr-200618:09x86
Windows Server 2003 with Service Pack 1, Itanium-based versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Cstegypt.dll5.2.3790.268811,26424-Apr-200622:31IA-64
Cstegypt.dll5.2.3790.268811,26424-Apr-200622:31IA-64
Windows Server 2003, x64-based versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Cstegypt.dll5.2.3790.26889,21624-Apr-200622:31x64
Cstegypt.dll5.2.3790.26889,21624-Apr-200622:31x64

Windows XP hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=support (http://support.microsoft.com/contactus/?ws=support)
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language. 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.
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Cstegypt.dll5.1.2600.25055,63214-Aug-200400:24x86
Cstegypt.dll5.1.2600.25055,63214-Aug-200400:24x86

Windows 2000 hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, submit a request to Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=support (http://support.microsoft.com/contactus/?ws=support)
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

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.
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Cstegypt.dll5.0.2195.69615,39230-Jul-200418:38x86
Cstegypt.dll5.0.2195.69615,39230-Jul-200418:38x86

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Microsoft Windows Server 2003 Service Pack 2.

MORE INFORMATION

The hotfix changes the registry settings to the following values:
  • DST Start: Last Thursday of April at 11:59:59 PM
  • DST End: Last Thursday of September at 11:59:59 PM
To set your computer to adjust for daylight saving time automatically, use the following methods.

Set your computer to adjust for daylight saving time automatically in Windows Server 2003

  1. Click Start, point to Control Panel, and then click Date and Time.
  2. On the Time Zone tab, use one of the following procedures:
    • To set the computer to change the system clock for daylight saving time, click to select the Automatically adjust clock for daylight saving changes check box, and then click OK.
    • To set the computer not to change the system clock for daylight saving time, click to clear the Automatically adjust clock for daylight saving changes check box, and then click OK.

Set your computer to adjust for daylight saving time automatically in Windows XP

  1. Click Start, click Run, type timedate.cpl, and then click OK two times.
  2. On the Time Zone tab, use one of the following procedures:
    • To set the computer to change the system clock for daylight saving time, click to select the Automatically adjust clock for daylight saving changes check box, and then click OK.
    • To set the computer not to change the system clock for daylight saving time, click to clear the Automatically adjust clock for daylight saving changes check box, and then click OK.

Set your computer to adjust for daylight saving time automatically in Windows Server 2000

  1. Click Start, point to Settings, and then click Control Panel.
  2. Double-click Date and Time.
  3. On the Time Zone tab, use one of the following procedures:
    • To set the computer to change the system clock for daylight saving time, click to select the Automatically adjust clock for daylight saving changes check box, and then click OK.
    • To set the computer not to change the system clock for daylight saving time, click to clear the Automatically adjust clock for daylight saving changes check box, and then click OK.

APPLIES TO
  • Microsoft Windows Server 2003, Standard Edition (32-bit x86)
  • Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
  • Microsoft Windows XP Professional
  • Microsoft Windows XP Home Edition
  • Microsoft Windows 2000 Professional Edition
  • Microsoft Windows 2000 Server
  • Microsoft Windows 2000 Advanced Server
Keywords: 
kbautohotfix kbwinserv2003sp2fix kbqfe kbhotfixserver kbfix kbbug KB824995
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