HomeSpace NewsEarth sets record for the shortest day

Earth sets record for the shortest day

Scientists have recorded Earth’s shortest day since its rotational period began to be recorded with highly precise atomic clocks: On June 29, 2022, Earth’s spin was completed in 1.59 milliseconds under 24 hours.

A day lasts 24 hours because the Earth completes a full spin on its axis roughly every 8,640,000 milliseconds. In the short term, this speed can fluctuate by factions of a millisecond from day to day. This means that the length of a day can vary, but only usually by a tiny amount. 

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