Daylight Saving Time (DST) 2007 Changes

Earlier in the month I started work on getting a jump on patching systems for the 2007 Daylight Saving Time changes.

(As of March 2007, DST begins on the second Sunday in March and ends on the first Sunday in November. For more information, see Sec.110 of the Energy Policy Act of 2005.)

A short summation of what I found was:

Microsoft has a patch for 2003 and XP with sp2.

For other versions, you should be able to change the settings with registry keys.

Exchange 2003 gets a little complicated in that you need a CDO patch in addition to the Windows OS patch, but your appointments made by clients with the XP patch may be off an hour or more without the CDO update tools for Outlook 2003 that they have yet to release. I'm still trying to determine if one should also hold off on the Exchange 2003 server patch until the Outlook tool is release.

Also, apparently there is an update for Entourage for Mac users.

Windows SharePoint Services 2.0 also has a patch. (WSS 2.0 is a part of Project 2003 server and SharePoint Portal Services 2003 in our environment.)

Sun has a time zone updater for Java builds 1.4 and greater.

Novell has a utility to change the DST start and stop values, but you can change them manually.

Blackberry for Exchange needs the Windows OS DST patch and the CDO Exchange patch, and is planning on releasing a patch/CDO update for Blackberry devices in early February.