Create the ultimate world clock with a quantum link - physics-math - 15 June 2014 - New Scientist: Timekeeping institutes around the world each have their own caesium clocks. They submit their time signal measurements to the International Bureau of Weights and Measures in Paris, France, which averages them and publishes a monthly newsletter that sets Coordinated Universal Time (UTC). But that means there is no real-time measure of a universally agreed standard time...
...The team calculates that a global quantum clock network would be about 100 times more precise than any individual clock...
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