Microsoft KB Archive/931926

= FIX: The system clock is incorrect by one hour on a Windows CE .NET 4.1-based device =

Article ID: 931926

Article Last Modified on 2/21/2007

-

APPLIES TO


 * Microsoft Windows CE .NET 4.1

-



SYMPTOMS
The U.S. Energy Policy Act of 2005, passed by the U.S. Congress in July of 2005, extended daylight saving time (DST) in the U.S. by approximately four weeks. Beginning in 2007, DST starts three weeks earlier, on the second Sunday in March at 2:00 AM. In 2007, DST begins on March 11. DST ends one week later than before, on the first Sunday of November at 2:00 AM. In 2007, DST will ends on November 4.

In Mexico, DST starts on the first Sunday in April at 2:00 AM. In 2007, DST begins on April 1. DST ends on the last Sunday of October at 2:00 AM. In 2007, DST ends on October 28.

Because of the change, the time zone settings and the system clock on a Windows CE .NET 4.1-based device may be incorrect during this four-week period. If time zone settings are incorrect, the clock may be off by one hour. Certain applications that run on a Windows CE .NET 4.1-based device may not display the correct time.



Software update information
A supported software update is now available from Microsoft as Windows CE .NET 4.1 Platform Builder Update 070207_KB931926. To resolve this problem immediately, click the following article number for information about how to obtain Windows CE Platform Builder and core operating system software updates:

837392 How to locate core operating system fixes for Microsoft Windows CE Platform Builder products

Prerequisites
This update is supported only if all previously issued updates for this product have also been installed.

Restart requirement
After you install this update, you must perform a clean build of the whole platform. To clean the platform, click Clean on the Build menu. To build the platform, click Build Platform on the Build menu. You do not have to restart your computer after you apply this update.

Update replacement information
This update does not replace any other updates.

File information
The English version of this package has the file attributes (or later file attributes) that are listed in the following table.

The English version of this package 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.



MORE INFORMATION
The following time zones are affected by the changes to DST. These time zones are updated when you install the software update that this article describes.

United States and Canada

 * (GMT-03:30) Newfoundland
 * (GMT-04:00) Atlantic time (Canada)
 * (GMT-05:00) Eastern time (US & Canada)
 * (GMT-06:00) Central time (US & Canada)
 * (GMT-07:00) Mountain time (US & Canada)
 * (GMT-08:00) Pacific time (US & Canada)
 * (GMT-09:00) Alaska

Note Tijuana does not appear in the same time zone as Pacific time.

Mexico

 * (GMT-07:00) Chihuahua, La Paz, Mazatlan
 * (GMT-06:00) Guadalajara, Mexico City, Monterrey
 * (GMT-08:00) Tijuana, Baja California

For more information about the software update that this article describes, visit the following Microsoft Web site:

http://www.microsoft.com/downloads/details.aspx?FamilyID=E5AA6CAC-1C4E-4442-B601-744671675268



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

Additional query words: CE410 QFE DST

Keywords: kbpubtypekc kbqfe kbfix kbbug KB931926

-

[mailto:TECHNET@MICROSOFT.COM Send feedback to Microsoft]

© Microsoft Corporation. All rights reserved.