Relating Time to the Earth's Variable Rotation

H. Chadsey, D. McCarthy

Abstract:	With the beginning of the 21st Century, the timing community finds itself again facing a decades-old problem of how to synchronize a uniform time scale with time derived from the Earth’s rotation. Atomic time is the basis for most everyday timing applications, However, time astronomically determined from the Earth’s rotation is essential for other applications including navigation. The history of relating atomic time to the Earth’s rotation is presented, including background information related to the current synchronization method of leap seconds.
Published in:	Proceedings of the 32th Annual Precise Time and Time Interval Systems and Applications Meeting November 28 - 30, 2000 Hyatt Regency Reston Town Center Reston, Virginia
Pages:	237 - 254
Cite this article:	Chadsey, H., McCarthy, D., "Relating Time to the Earth's Variable Rotation," Proceedings of the 32th Annual Precise Time and Time Interval Systems and Applications Meeting, Reston, Virginia, November 2000, pp. 237-254.
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