1000s of documents out there that describe how to seize FSMO role, RID Master, Infrastructure Master etc from one domain controller to the other but not that easy to find a document that describes how to move the NTP time server role to new domain controller. Here goes how to do it but before we go any further, its time for the usual "Disclaimer1"
On the old domain controller, run the following at command prompt
w32tm /config /syncfromflags:domhier /reliable:no /updatenet stop w32time && net start w32time
On the new domain controller, run the following at command prompt
w32tm /config /manualpeerlist:time.windows.com /syncfromflags:manual /reliable:yes /updatenet stop w32time && net start w32time
That's it. All the computers in your domain should automatically synchronize.
