Looking through all of our domain controllers I've noticed the Windows Time service is set to manual startup. All of our domain controllers are Windows Server 2008 R2 /wSP1 and fully patched. Domain is running in 2008 R2 native mode. I've done my share of googling and scouring of technet but I can't seem to find anything that definitively states the time service should be set to Automatic or Manual, it's always been my belief the time service should be set to automatic.
Can anyone shed some light on this?