Chronograph Lite 

Chronograph is a simple award-winning program which synchronizes your local PC clock using atomic-time servers. It has an easy-to-use, nice-looking interface, so you can adjust your time with just two mouse clicks.
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TimeWarp 

The TimeWarp utility sets a PC clock from a time server using the Simple Network Time Protocol (SNTP). Using an internet connection, timing messages from an SNTP time server can be obtained automatically to set your computer clock to the exact time.
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