# Implement a clock that can be used to synchronize another clock?

GROUPS:
 How can I implement a clock that can be used to synchronize another clock?
 Do you mean a Clock[] or an animated wall clock, or some other sort of clock, like a game clock? Why do you need two clocks: cannot the output of one clock be used in multiple places? Or is one a physical clock, controlled by Mathematica?
 I feel there is something probably still missing from the description of the problem, but when I want something to show me the time, I use a cell phone or maybe my computer's clock, which set their times from one of the NIST servers. In Mathematica you can use DateString[] or DateList[]. I don't know what its source is, maybe the computer's clock.