A hotfix is available to change the daylight saving time for the (GMT+02:00) Cairo time zone in the year 2007 for Windows XP, Windows Server 2003, and Windows Vista

The government of Egypt announced that the winter time will start two weeks earlier for the year 2007. This is a special change only for the year 2007 to accommodate the start of the holy month of Ramadan on September 13, 2007. According to this change, the start time and the end time for daylight saving time (DST) for the (GMT+02:00) Cairo time zone are as follows:

• DST starts at 23:59:59 on the last Thursday of April.
• DST ends at 23:59:59 on the first Thursday of September.

Service pack information for Windows Vista

To resolve this problem, obtain the latest service pack for Windows Vista. For more information, click the following article number to view the article in the Microsoft Knowledge Base: A hotfix is available to change the start time and the end time of DST accordingly. This hotfix changes the start time and the end time of DST by modifying the registry. This hotfix is available for computers that run the following operating systems:

• Windows XP
• Windows Server 2003
• Windows Vista

Note If you apply update 933360 after you apply this hotfix (update 940427), the time zone settings for Egypt will become incorrect. To apply update 933360 and update 940427 on a computer, use one of the following methods:

• Install update 933360 first, and then install update 940427.
• Install update 940427 and postpone the installation of update 933360 until September 28, 2007.

Hotfix information for Windows Server 2003

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: 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.

Prerequisites

To apply this hotfix, you must have one of the following service packs installed:

• Windows Server 2003 Service Pack 1 (SP1)
• Windows Server 2003 Service Pack 2 (SP2)

Restart requirement

After you apply this hotfix, you do not have to restart the computer.

Hotfix replacement information

This hotfix does not replace any other previously released hotfixes.

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 Service Pack 1, x86-based versions

Windows Server 2003 with Service Pack 2, x86-based versions

Windows Server 2003 with Service Pack 1, Itanium-based versions

Windows Server 2003 with Service Pack 2, Itanium-based versions

Windows Server 2003 with Service Pack 1, x64-based versions

Windows Server 2003 with Service Pack 2, x64-based versions

Hotfix information for Windows XP

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: 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.

Prerequisites

To apply this hotfix, you must have Windows XP Service Pack 2 (SP2) installed.

Restart requirement

After you apply this hotfix, you do not have to restart the computer.

Hotfix replacement information

This hotfix does not replace any other previously released hotfixes.

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 XP with Service Pack 2, x86-based versions

Windows XP with Service Pack 2, x64-based versions

Windows XP with Service Pack 1, x64-based versions

Hotfix information for Windows Vista

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: 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.

Prerequisites

No prerequisites are required.

Restart requirement

You do not have to restart your computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other previously released hotfixes.

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

Windows Vista, 64-bit versions

To work around this issue, follow these steps:

1. Use the Time Zone Editor tool (Tzedit.exe) to set the new DST start time and end time for the (GMT+02:00) Cairo time zone.
   
   Note The Tzedit.exe tool is included in the Windows Resource Kit.
2. Copy the registry changes that are made by Tzedit.exe to the registry on client computers by using a script or by using other tools.

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 Windows Vista Service Pack 1.

To configure a computer to adjust for DST automatically in Windows Server 2003, follow these steps:

1. Click Start, click Control Panel, and then double-click Date and Time.
2. On the Time Zone tab in the Date and Time Properties dialog box, click to select the Automatically adjust clock for daylight saving changes check box.
   
   Note To configure the computer not to change the system clock for DST automatically, click to clear this check box.

To configure a computer to adjust for DST automatically in Windows XP, follow these steps:

1. Click Start, click Run, type timedate.cpl, and then click OK.
2. On the Time Zone tab in the Date and Time Properties dialog box, click to select the Automatically adjust clock for daylight saving changes check box.
   
   Note To configure the computer not to change the system clock for DST automatically, click to clear this check box.

To configure a computer to adjust for DST automatically in Windows Vista, follow these steps:

1. Click Start, click Control Panel, and then double-click Date and Time.
2. On the Date and time tab in the Date and Time dialog box, click Change time zone, and then click to select the Automatically adjust clock for daylight saving changes check box.
   
   Note To configure the computer not to change the system clock for DST automatically, click to clear this check box.

Microsoft Outlook calendar issue

In Microsoft Office Outlook, all calendar entries for meetings and appointments from September 6, 2007, to September 20, 2007, will be shifted by one hour. This is because the computer used the previous DST settings when these entries were added.

Microsoft could not release this hotfix earlier to avoid this issue because of the delayed official announcement that the winter time starts two weeks earlier. We recommend that you recheck the entries from September 6, 2007, to September 20, 2007.

For more information about how to use the Tzedit.exe tool, click the following article number to view the article in the Microsoft Knowledge Base: For more information, click the following article number to view the article in the Microsoft Knowledge Base: