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Miscellaneous

What is the shortest unit of time?

2 Answers

The smallest unit of time is known as Planck's Time, 10^-43 seconds. It is defined as the amount of time it takes the fastest thing, light, travelling at 3 times 10^8 metres per second, to cross the smallest distance, the Planck Length, 10^-35 meters.

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Zeptosecond. It is a trillionth of a billionth of a second.

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