Microsoft KB Archive/944340

= 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 =

Article ID: 944340

Article Last Modified on 12/12/2007

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APPLIES TO


 * Microsoft Windows XP Home Edition
 * Microsoft Windows XP Professional
 * Microsoft Windows Server 2003, Web Edition
 * Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
 * Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems
 * Microsoft Windows Server 2003, Datacenter x64 Edition
 * Microsoft Windows Server 2003, Enterprise x64 Edition
 * Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems
 * Microsoft Windows Server 2003, Standard x64 Edition
 * Microsoft Windows Server 2003, Standard Edition (32-bit x86)

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SYMPTOMS
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.



RESOLUTION
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 now 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 service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or 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. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

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.

Hotfix information for Windows Server 2003
A supported hotfix is now 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 service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or 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. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

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 SP2, IA64-based versions


STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
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:

928388 2007 time zone update for Windows XP and Windows Server 2003

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

824994 Description of the contents of Windows XP Service Pack 2 and Windows Server 2003 software update packages

Keywords: kbexpertiseadvanced kbfix kbqfe kbhotfixserver KB944340

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