A March 2008 daylight saving time (DST) update is available for Microsoft Windows Mobile-based devices. The update that this article describes changes the time zone data to accommodate daylight saving time (DST) changes in several countries, as outlined in this article.

The update that this article describes is a cumulative update rollup that includes all the changes that were previously released in Microsoft Knowledge Base (KB) article 949168. The update also includes the removal of the Baghdad time zone DST observance.

For more information, click the following article number to view the article in the Microsoft Knowledge Base: For more information about how DST changes may affect other Microsoft products, visit the following Microsoft Web site: Important Make sure that you uninstall DST update 949168, the February 2008 cumulative DST update, before you install this update. Your appointments’ time will be adjusted.

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Updates for March 2008 daylight saving time update

The following changes have been made since the previous Windows Mobile cumulative time zone update. This update is described in Microsoft Knowledge Base article 941898.

•	Arabic Standard Time The DST observance for the Baghdad time zone is removed.
•	Australia: Central Australia Standard Time, Australia Eastern Standard Time, Tasmania Standard Time The DST start times and end times for these time zones are adjusted so that DST starts and ends on the same day in all these time zones. This was changed after the prior cumulative time zone update was created (in August 2007).

The following table outlines the new time zone changes in this update:

Registry subkey name	Display name	Daylight name	Standard name	DST start date	DST end date
Arabic Standard Time	(GMT+03:00) Baghdad	Arabic Daylight Time	Arabic Standard Time	Not observed	Not observed
Cen. Australia Standard Time	(GMT+09:30) Adelaide	Cen. Australia Daylight Time	Cen. Australia Standard Time	First Sunday in October at 02:00:00	First Sunday in April at 03:00:00
AUS Eastern Standard Time	(GMT+10:00) Canberra, Melbourne, Sydney	AUS Eastern Daylight Time	AUS Eastern Standard Time	First Sunday in October at 02:00:00	First Sunday in April at 03:00:00
Tasmania Standard Time	(GMT+10:00) Hobart	Tasmania Daylight Time	Tasmania Standard Time	First Sunday in October at 02:00:00	First Sunday in April at 03:00:00

The following table outlines all the time zone changes that this update includes:

Registry subkey name	Display name	Daylight name	Standard name	DST start date	DST end date
Alaska Standard Time	(GMT-09:00) Alaska	Alaskan Daylight Time	Alaskan Standard Time	Second Sunday in March at 02:00:00	First Sunday in November at 02:00:00
Arabic Standard Time	(GMT+03:00) Baghdad	Arabic Daylight Time	Arabic Standard Time	Not observed	Not observed
Atlantic Standard Time	(GMT-04:00) Atlantic Time (Canada)	Atlantic Daylight Time	Atlantic Standard Time	Second Sunday in March at 02:00:00	First Sunday in November at 02:00:00
AUS Eastern Standard Time	(GMT+10:00) Canberra, Melbourne, Sydney	AUS Eastern Daylight Time	AUS Eastern Standard Time	First Sunday in October at 02:00:00	First Sunday in April at 03:00:00
Cen. Australia Standard Time	(GMT+09:30) Adelaide	Cen. Australia Daylight Time	Cen. Australia Standard Time	First Sunday in October at 02:00:00	First Sunday in April at 03:00:00
Central Standard Time	(GMT-06:00) Central Time (US & Canada)	Central Daylight Time	Central Standard Time	Second Sunday in March at 02:00:00	First Sunday in November at 02:00:00
Central Standard Time (Mexico)	(GMT-06:00) Guadalajara, Mexico City, Monterrey	Central Daylight Time (Mexico)	Central Standard Time (Mexico)	First Sunday in April at 02:00:00	Last Sunday in October at 02:00:00
Eastern Standard Time	(GMT-05:00) Eastern Time (US and Canada)	Eastern Daylight Time	Eastern Standard Time	Second Sunday in March at 02:00:00	First Sunday in November at 02:00:00
Mountain Standard Time	(GMT-07:00) Mountain Time (US and Canada)	Mountain Daylight Time	Mountain Standard Time	Second Sunday in March at 02:00:00	First Sunday in November at 02:00:00
Mountain Standard Time (Mexico)	(GMT-07:00) Chihuahua, La Paz, Mazatlan	Mountain Daylight Time (Mexico)	Mountain Standard Time (Mexico)	First Sunday in April at 02:00:00	Last Sunday in October at 02:00:00
New Zealand Standard Time	(GMT+12:00) Auckland, Wellington	New Zealand Daylight Time	New Zealand Standard Time	Last Sunday in September at 02:00:00	First Sunday in April at 03:00:00
Newfoundland Standard Time	(GMT-3:30) Newfoundland	Newfoundland Daylight Time	Newfoundland Standard Time	Second Sunday in March at 00:01:00	First Sunday in November at 00:01:00
Pacific Standard Time	(GMT-08:00) Pacific Time (US & Canada)	Pacific Daylight Time	Pacific Standard Time	Second Sunday in March at 02:00:00	First Sunday in November at 02:00:00
Pacific Standard Time (Mexico)	(GMT-08:00) Tijuana, Baja California	Pacific Daylight Time (Mexico)	Pacific Standard Time (Mexico)	First Sunday in April at 02:00:00	Last Sunday in October at 02:00:00
Tasmania Standard Time	(GMT+10:00) Hobart	Tasmania Daylight Time	Tasmania Standard Time	First Sunday in October at 02:00:00	First Sunday in April at 03:00:00
W. Australia Standard Time	(GMT+08:00) Perth	W. Australia Daylight Time	W. Australia Standard Time	Last Sunday in October at 02:00:00	Last Sunday in March at 03:00:00

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Software update information

The following files are available for download from the Microsoft Download Center:

Microsoft Windows Mobile 5.0 & 6 (Pocket PC and Smartphone)

Download the WindowsMobile-kb949168.cab package now. (http://download.microsoft.com/download/5/d/a/5daa2d11-6733-442d-a275-429af43a62f0/windowsmobile-kb949168.cab)

Microsoft Windows Mobile Installer, Desktop Tool

Download the WindowsMobile-kb949168.msi package now. (http://download.microsoft.com/download/5/d/a/5daa2d11-6733-442d-a275-429af43a62f0/windowsmobile-kb949168.msi)

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How to install the software update

Uninstall the February 2008 DST update (update 949168).

If you can connect the device to a computer, follow these steps:

1.	Connect the Windows Mobile-based device to the computer.
2.	Download and then run the WindowsMobile-kb949168.msi file, and then follow the instructions.

If you cannot connect the device to a computer, an update file is available. There are many ways to install the update file. For example, you can follow these steps:

1.	Download the WindowsMobile-kb949168.cab file for the Windows Mobile-based device to a computer.
2.	Attach the update file to an e-mail message, and then send the e-mail message to an account that you can access from the device.
3.	On the device, open the e-mail message, and then save the attached file.
4.	Locate the file, and then run the file to install the update.

Note After you install the update, your device will automatically restart to complete the software update installation.

For more information about how to install and to run the update file on a Windows Mobile-based device, visit the following Microsoft Windows Mobile Web site:

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Installation notes

You can install the DST update on either the device or the storage card.

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File information

The English version of this update 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.

Microsoft Windows Mobile 5.0 & 6, Pocket PC and Smartphone versions

File name	File version	File size	Date	Time
Windowsmobile-kb949168.cab	Not Applicable	25,554	26-Mar-2008	01:46

Microsoft Windows Mobile Installer, Desktop Tool

File name	File version	File size	Date	Time
Windowsmobile-kb949168.msi	Not Applicable	541,184	26-Mar-2008	02:20

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For more information about how to download this update for Windows Mobile-based devices, visit the following Microsoft Web site: Note Because this update is not included in a read-only memory (ROM) update, you must reinstall this update when the device must be hard reset.

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