Ntp. Atomic Clock Sync. Atomic Clock Sync offers an easy way to configure how often your computer will check in with an atomic clock server to keep your local system clock adjusted for accuracy.
The default in Windows is to sync every 7 days, but you can easily change this to be more often if you find your computer clock gets behind or ahead too quickly. Atomic Clock Sync can even help repair the Windows Time Service if your computer is no longer able to check for Internet Time updates as it normally would. Best of all, you can download and use this utility at no cost to you! Atomic Clock Sync includes no spyware! No ad banners!