Atomic TimeSync is an application that synchronizes a computer system’s time with that of the atomic clock of the United States National Institute of Standards and Technology (NIST). The NIST is the federal agency responsible for maintaining the primary frequency standard for the US. It has its own server using the Network Time Protocol (NTP), which allows online users to get the standard time, even if they are not from the United States. The NIST gets the national primary time from the NIST-F1 atomic clock, which uses cesium atoms, lasers, and microwave technology to define each second, and is considered to be the one of the most accurate timekeeping devices in the world.
Atomic TimeSync has a simple interface with boxes showing the local time, the network time, and the difference between the local and the network time. Users can update the system’s time by clicking the Get Atomic Time button. The utility will then get data from the NIST server and apply the time to the user’s computer. The program can be set to update the time automatically; users can also specify a time offset to advance or delay the displayed time.
The program also has a built-in NTP server so users can synchronize all computer units in a network using one central computer. Atomic TimeSync can be configured to re-sync the time on all computers connected to the network periodically.