To quote webexhibits.org :
Date change in 2007
On August 8, 2005, President George W. Bush signed the Energy Policy Act of 2005. This Act changed the time change dates for Daylight Saving Time in the U.S. Beginning in 2007, DST will begin on the second Sunday in March and end the first Sunday in November. The Secretary of Energy will report the impact of this change to Congress. Congress retains the right to resume the 2005 Daylight Saving Time schedule once the Department of Energy study is complete.
ps. I got there from http://www.time.gov ( the official US time site )
Adding to this post, don't forget to check on:
ReplyDeletehttp://www.microsoft.com/windows/timezone.mspx
for patches you may need to update Windows to handle the new DST dates.