ClockSync II for Mac

From Jeremy Kezer:

If you have two or more Macintoshes, you probably notice that the clocks drift apart as time goes by. This can range from being a minor nuisance to a problem, especially if you do a lot of synchronizing between the Macintoshes. ClockSync II synchronizes the clocks between two or more Macintoshes, by setting the clocks of the "Servant"Macintoshes to that of a "Master" Macintosh.ClockSync has two components. The ClockSync Master runs continuously on the "Master" Macintosh, while the ClockSync Servant can be run on any other Macintosh on the network to update its time.