Short description of 1st Atomic Time 3.0: 1st Atomic Time keeps your system time accurate. It synchronizes your PC clock with Internet atomic time servers. You can pick the fastest and most reliable servers. This program supports firewalls and proxy servers. You can setup this program to automatically adjust the time at specified intervals or once at Windows startup. 1st Atomic Time can operate as a time server, then you can ensure you have the exact time on any computer in your network.