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Timekeeping in the Americas



Michael A. Lombardi, Jose M. Lopez


Time and its measurement belong to the most fundamental core of physics, and many scientific and technological advances are directly or indirectly related to time measurements. Timekeeping is essential to everyday life, and thus is the most measured physical quantity in modern societies. Time can also be measured with less uncertainty and more resolution than any other physical quantity. The measurement of time is of the utmost importance for many applications, including: global navigation satellite systems, communications networks, electric power generation, astronomy, electronic commerce, and national defense and security. This paper discusses how time is kept, coordinated, and disseminated in the Americas.
Revista Mexicana De Astronomia Y Astrofisica


atomic clocks, international comparisons, time, timekeeping


Lombardi, M. and Lopez, J. (2015), Timekeeping in the Americas, Revista Mexicana De Astronomia Y Astrofisica (Accessed April 20, 2024)
Created October 1, 2015, Updated February 19, 2017