This domain controller is unable to set its time because it is more than 15 hours out of sync with its time provider.
Sample Event:
The time service has not been able to synchronize the system time for %1 seconds because none of the time providers has been able to provide a usable time stamp. The system clock is unsynchronized.
Verify that the time provider has the correct time. If the time provider has the correct time, manually adjust the time on this domain controller to the correct time.
Run W32tm once at a command prompt to verify that the time can now synchronize.
For more information, see:
Microsoft Help and Support for Microsoft Windows Server 2008 and above
Microsoft Knowledge Base