2007 Daylight Savings Issues for Windows Mobile 2003 and 5.0
Why are there Changes?
The Energy Policy Act of 2005 states that daylight saving time is extended by four weeks beginning in 2007. Daylight Saving Time begins for most of the United States at: 2 a.m. on the Second Sunday in March to 2 a.m. on the First Sunday of November.
Who is Effected?
Daylight Saving Time - for the U.S. and its territories - it is NOT observed in Hawaii, American Samoa, Guam, Puerto Rico, the Virgin Islands, and by most of Arizona (with the exception of the Navajo Indian Reservation in Arizona). Indiana, which used to be split with a portion of the state observing DST and the other half not, is now whole. In the past, counties in the Eastern Time Zone portion of the state did not observe DST. They were on standard time year round. A state law was passed in 2005 that has the entire state of Indiana observing DST beginning in April 2006.
How do I resolve the problem on my Windows Mobile Device?
Microsoft has released a registry fix and instructed the carriers to push out a patch. Most of the carriers, have not released this update so far. If you would like your Windows Mobile Phone to display the correct time after the Second Sunday in March you need this fix. Microsoft has published the registry fix here: http://support.microsoft.com/kb/923953. Additional guidence is published here:
http://www.microsoft.com/windowsmobile/daylightsaving/default.mspx
What will this accomplish?
Once the CAB file is run on your device the device will act as it should and display the correct time after the DST change on the Second Sunday in March.
*Note:
Installation tips
Rapid succession of steps is important
Run the Outlook Time Zone Update Tool on your PC as soon as possible after the DST update is applied to all of your PCs. If meetings between March 11, 2007 and April 1, 2007 are scheduled after the DST files are installed but before the tool is run, meetings will erroneously be moved one hour earlier. To correct such calendar items, organizers should manually update such meetings to ensure they are scheduled accurately for themselves and all invitees.
All connected devices must be updated
Even if you correctly update your PC with the DST 2007 update, when you view your calendar from a non-updated mobile device running Windows Mobile, your meetings during the extended DST period will be shifted by one hour. Meetings created on your non-updated device will need to be updated on your PC by running the Outlook Time Zone Update Tool again.
If some users have not updated their Outlook, it will affect other users
The Outlook Time Zone Update Tool only updates meetings for which the user is the organizer, and then automatically sends updates for those meetings to attendees. Meetings that you are invited to but did not organize will not be updated until the organizer updates the meeting and prompts you to change to the correct time. Additionally, meetings created by a delegate on your behalf from an non-updated PC will need to be updated on your PC by running the Outlook Time Zone Update Tool again.
Windows DST Hotfix for Window Server and XP
KNOWN ISSUE: Either Windows Hotfix will fix Windows but cause Outlook appts to be off by 1 hour in the delta period after DST change on the Second Sunday in March, this is currently being investigated by Microsoft.
(UPDATE 1/24/2007)
Addressing daylight saving time using the Outlook Time Zone Data Update Tool
A program will be released in January 2007 through the Microsoft Download Center that can update calendar items in Outlook to accommodate the changes in DST during the Extended DST period. This program is called the Time Zone Data Update Tool for Microsoft® Office Outlook® (Time Zone Data Update Tool).
Microsoft Office Outlook 2007, the newest version of Outlook, has the ability to automatically detect the DST change and prompt the process that updates a person’s calendar to conform to the new daylight saving time rules. However, the Time Zone Data Update Tool contains enhancements that improve upon what is available in Outlook 2007and should be run instead of the out-of-the-box Outlook 2007 experience.
