ATOMIC TIME Atomic Time Standard is provided by the U.S. National Institute of Standards and Technology, Time and Frequency Division in Boulder Colorado. Atomic time is measured through vibrations of atoms in a metal isotope that resembles mercury. The result is extremely accurate time that can be measured on instruments. Radio waves transmit this exact time throughout North America. Atomic watches and clocks can receive the signal.

There, now we're all a little smarter today...

And finally he can no longer set his clock for ridiculous half hours ahead of the real time....just to make sure he gets up on time....that concept never made any sense to me.  But now when he sets it 15 - 30 minutes ahead and goes to sleep...it Atomically changes back to everyone else's idea of Eastern Standard Time.,,,Yeah....