Windows 7 Service Details
Synchronizes windows clock online. Rather a useless tool, unless you are very serious about keeping valid time. It is a fairly light service.
Maintains date and time synchronization on all clients and servers in the network.
Consequences of Stopping:
Your time might become out of sync. If this service is stopped, date and time synchronization will be unavailable. If this service is disabled, any services that explicitly depend on it will fail to start.
All services listed in 'Required For' will be unable to function