The ArGoSoft Time Synchronizer application was designed to be a compact program, which periodically connects to NIST time servers, and synchronizes your computer clock with atomic clock, maintained by the US National Institute of Standards and Technology.
It also can be used on any TCP/IP network to synchronize the time with any time server.
It is completely transparent and runs as background process. It is controlled via control panel. To change settings, go to Control Panel, and double click ArGoSoft Time Synchronizer icon.