Microsoft has released a daylight update for Windows

Install this update to resolve issues caused by revised daylight saving time and time zone laws in several countries. This update enables your computer to automatically adjust the computer clock on the correct date in 2012. After you install this item, you may have to restart your computer.

Update for Windows Server 2008 R2 x64 Edition (KB2633952)
Update for Windows XP (KB2633952)
Update for Windows Server 2003 (KB2633952)
Update for Windows Server 2008 x64 Edition (KB2633952)
Update for Windows Embedded Standard 7 (KB2633952)
Update for Windows Server 2003 x64 Edition (KB2633952)
Update for Windows 7 for x64-based Systems (KB2633952)
Update for Windows Server 2008 (KB2633952)
Update for Windows Server 2003 for Itanium-based Systems (KB2633952)
Update for Windows 7 (KB2633952)
Update for Windows Server 2008 for Itanium-based Systems (KB2633952)
Update for Windows XP x64 Edition (KB2633952)
Update for Windows Vista for x64-based Systems (KB2633952)
Update for Windows Embedded Standard 7 for x64-based Systems (KB2633952)
Update for Windows Vista (KB2633952)