-> Microsoft Daylight Saving Time Help and Support Center There is a download from Microsoft to update the start and end end dates for Windows 2000, Windows XP, Windows 2000 Server and Advanced Server, and Windows Server 2003 versions...versions of Exchange and other servers...versions of Office and Outlook.
The U.S. Energy Policy Act of 2005, passed by the U.S. Congress July, 2005, extended Daylight Saving Time (DST) in the U.S. by approximately four weeks. As a result, beginning in 2007, DST will start three weeks earlier on March 11, 2007, and end one week later on November 4, 2007, resulting in a new DST period that is four weeks longer than previously observed.
