Microsoft KB Archive/933811

= The JScript version 5.6 Date object reports time in standard time instead of in daylight saving time after you apply the updates in Microsoft Knowledge Base articles 928388 and 932590 on a computer that is running Windows XP or Windows Server 2003 =

Article ID: 933811

Article Last Modified on 11/2/2007

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APPLIES TO


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

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SYMPTOMS
Consider the following scenario. You do the following on a computer that is running Microsoft Windows XP or Microsoft Windows Server 2003:  You install either the first or second version of the 2007 time zone update for Microsoft Windows operating systems that are documented in the following Microsoft Knowledge Base articles:

928388 2007 time zone update for Microsoft Windows operating systems

938136 February 2007 cumulative time zone update for Microsoft Windows operating systems

933360 August 2007 cumulative time zone update for Microsoft Windows operating systems

 You install the C run-time (CRT) update that is documented in the following Microsoft Knowledge Base article:

932590 FIX: Windows-based applications that use the TZ environment variable may not work as expected because of changes to DST

 You set the TZ environment variable.

In this scenario, when you create a custom application that uses the Microsoft JScript version 5.6 Date object, the time is reported incorrectly for dates that are between the second Sunday in March and the first Sunday in April for the year 2007. Instead of daylight saving time, the time is reported in standard time. For example, for March 30, 2007, the JScript version 5.6 Date object reports time in standard time instead of in daylight saving time.

Note JScript version 5.6 is included in Windows XP and Windows Server 2003.



Windows XP update information
The following file is available for download from the Microsoft Download Center:

Update for Windows XP (KB933811)
Download the 933811 package now.

Update for Windows XP x64 Edition (KB933811)
Download the 933811 package now.

Release Date: June 26, 2007

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:

119591 How to obtain Microsoft support files from online services

Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.

Prerequisites
You must be running Windows XP with Service Pack 2 (SP2) or Windows XP Professional x64 Edition to install this hotfix.

Restart requirement
You must restart your computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

File attributes information for Windows XP
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.

File attributes information for Windows XP Professional x64 Edition
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 update information
The following files are available for download from the Microsoft Download Center:

Update for Windows Server 2003 (KB933811)
Download the 933811 package now.

Update for Windows Server 2003 for Itanium-based Systems (KB933811)
Download the 933811 package now.

Update for Windows Server 2003 x64 Edition (KB933811)
Download the 933811 package now.

Release Date: June 26, 2007

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:

119591 How to obtain Microsoft support files from online services

Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.

Prerequisites
No prerequisites are required.

Restart requirement
You must restart your computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

File attributes information for Windows Server 2003, x86-based versions
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.

File attributes information for Windows Server 2003, x64-based versions
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.

File attributes information for Windows Server 2003, Itanium-based versions
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.



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
For more information about the JScript version 5.6 Date object, visit the following Microsoft Web site:

http://msdn2.microsoft.com/en-us/library/cd9w2te4.aspx

For more information about Microsoft Visual Studio and the daylight saving time changes, visit the following Microsoft Web site:

http://msdn2.microsoft.com/en-us/vstudio/bb264729.aspx

For more information about the _tzset function, visit the following Microsoft Web site:

http://msdn2.microsoft.com/en-us/library/90s5c885(VS.80).aspx

