This article descripes how you can synchronise your computers clock with either your Domain Controller or any other windows computer on your network.
The quickest way to synchronise your clock with the domain time, open a command prompt window and type:
NET TIME /DOMAIN
To force a computer to synchronize its time with a specific computer, send the following command:
NET TIME \\<MACHINENAME> /SET /Y -or- NET TIME \\<IP Address> /SET /Y
Where <MACHINENAME> is the domain controller computer name, or IP address.