how to synchronize external time server with window server 2008

• Select your time server from http://support.microsoft.com/kb/262680.
• After selecting your time server open command prompt.
• write command:
• w32tm /config /syncfromflags:manual /manualpeerlist:"<ip addresses>" /update /reliable:yes
• here ip address is of your time server name

• If you want to stop the synchronization time with time server writer a command.
• net stop w32time
• For starting a synchronization with time server,write a command.
• net start w32time
• for showing, which server hold PDC emulator task
• dsquery server -hasfsmo pdc