当然可以,kb816042:How to configure an authoritative time server in Windows Server
http://support.microsoft.com/kb/816042/en-us
里面的 "Configuring the Windows Time service to use an external time source" 部分
注意,如果你有多台域控,那么Domain Time的根是PDC operations master角色所在DC,在它上面做就好了
Technical problem is never a problem.