Chronograph Atomic Time Clock is a simple award-winning program which keeps your computer's clock accurate using atomic time servers of the National Institute of Standards and Technology (NIST). It has an easy-to-use nice-looking user interface and offers many useful features that make the process of time synchronization fast and comfortable.
You can work in Manual, Periodical, or Wait-for-Connection operating modes. Built-in dial-up networking and SOKS proxy support are included. Chronograph is able to work as a time server, so you can synchronize you computers's clock not only to NIST servers but to any computer in your local network. The program is very stable; it automatically connects to another time server when the current server is down.

Also Chronograph provides skins support, advanced hint with calendar and much more.