If you don't already know, daylight savings time will start 3 weeks earlier and last 1 week longer from now on. Energy savings program by the guberment.
Windows XP systems will report time incorrectly, possibly causing issues for some people (OH NO the world is going to end!)

To resolve:
Go here:
http://support.microsoft.com/gp/cp_dstSelect what you are (make it easy and just pick home user)
Select your OS (not sure? Right click on my computer, click on properties, at the top of the page it will tell you what version OS you have, and if you have SP1 or SP2 installed)
Click the download link in the middle of the page, and run it.
No reboot required but I always suggest so after a patch at your conv.
S