W32tm on TechNet

Server 2008
Normal Server (after PDC has changed)
w32tm /resync /nowait /rediscover
net stop w32time
net start w32time
w32tm /query /status

Domain Controller to sync from external source
net stop w32time
w32tm /config /syncfromflags:manual /manualpeerlist:"<first ip>,0x8 <second ip>,0x2"
w32tm /config /reliable:yes
net start w32time
w32tm /config /update
w32tm /resync

Server 2003
Normal Server
net stop w32time
net time /setsntp:<ip address of DC>,0x1
net start w32time
net time /querysntp