The Year 2006 Will Start One Second Later Than Expected

The year 2006 is going to come in with one second later than expected.
The scientists in charge of maintaining world time have to insert a "leap second," in order to keep atomic time sync'd up with the Earth's rotational time.
On the U.S. East Coast, the extra second occurs just before 7 p.m. on New Year's Eve. Atomic clocks at that moment will read 23:59:60 before rolling over to all zeros.