A positive leap second will be introduced at the end of December 2005 to keep up with the slowing earth's rotation.
At midnight Coordinated Universal Time (UTC) atomic clocks worldwide will read 23:59:60 before hitting 00:00:00. This year's leap second will add an extra second to atomic clocks at NIST in Boulder, Colo., and other sites around the world. Normally, the last second of the year is 23:59:59 UTC on Dec. 31, 2005, while the first second of the new year being 00:00:00 UTC on Jan. 1, 2006. The leap second added at 23:59:59 UTC (06:59:59 p.m. Eastern Standard Time) on Dec. 31, will make the atomic clocks read 23:59:60 UTC before changing to all zeros.
Official bulletin.
At midnight Coordinated Universal Time (UTC) atomic clocks worldwide will read 23:59:60 before hitting 00:00:00. This year's leap second will add an extra second to atomic clocks at NIST in Boulder, Colo., and other sites around the world. Normally, the last second of the year is 23:59:59 UTC on Dec. 31, 2005, while the first second of the new year being 00:00:00 UTC on Jan. 1, 2006. The leap second added at 23:59:59 UTC (06:59:59 p.m. Eastern Standard Time) on Dec. 31, will make the atomic clocks read 23:59:60 UTC before changing to all zeros.
Official bulletin.


