RocketTime

Sometimes we want to be so accurate that would like to have an atomic clock in our computers. Well, this utility can fulfil your dreams and correct your PC time in milliseconds.

RocketTime will suit you well. This computer program has an entry-level, lightweight professional timekeeper, which incidentally is provided free of charge for personal use. This free utility has been built around the same effective and dependable update kernel used in Rocket’s professional productions. A built-in correction log keeps a tally of the date and time of each rectification, jointly with the measure of clock drift. It also provides a statistical computation of your clock’s drift rate.
It comes with a Security Vault that will protect your data against any danger. It creates virtual drives to save your Business and Personal Documents that you can open and close by using a combination of keys.
The free version of RocketTime will let you synchronize your clock, display two time zones, automatically check the clock for you, and see a history of corrections and time sources.
Presently RocketTime is only supported on 32-bit Windows, PocketPC and Palm OS.