Wait Just a Second.

Reports that the International Earth Rotation and Reference Systems Service has announced that December 31, 2005 will contain an extra second. Plan of national time-keeping centers around the globe to insert the leap second into their master clock; Variation between UT1, a clock that keeps time based on Earth's rotation, and Coordinated Universal Time, the world's standard time scale; Impact of the leap second on electronic navigation systems such as the global positioning system.