The time stamps are incorrect after you apply update 928388 and then change the time settings to a year that is earlier than 2007 in Windows XP and in Windows Server 2003

You apply update 928388 to a computer that is running Windows XP or Windows Server 2003. Then, you change the time settings to a year that is earlier than 2007. After you do this, the time stamps are incorrect. Additionally, the daylight saving time (DST) setting does not reflect the actual date and time.

A hotfix is available to resolve this problem. The hotfix changes the DST behavior to be dynamic and backward-compatible with the old DST standards in years that are earlier than 2007.

After you apply this hotfix, the operating system determines whether the current time zone has dynamic DST keys. If the time zone has dynamic DST keys, the operating system uses the TZI value for the specific year instead of the TZI value of the current year.

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

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

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 SP2, x86-based versions

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

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

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

Windows Server 2003 with SP2, x86-based versions

Windows Server 2003, x64-based versions

Windows Server 2003 with SP2, x64-based versions

Windows Server 2003 with SP1, IA64-based versions

Windows Server 2003 with SP2, IA64-based versions

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

Starting in the spring of 2007, DST start dates and end dates for the United States changed to comply with the Energy Policy Act of 2005.

Microsoft released the 2007 time zone update package (update 928388) for this change. After you apply this update, the operating system uses the new DST settings. Two system time-zone-related APIs use current time zone information to convert time from Coordinated Universal Time (UTC) to local time. These APIs are the following:

• SystemTimeToTzSpecificLocalTime
• TzSpecificLocalTimeToSystemTime

For more information about update 928388, 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: