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No leap second for December 31, 2020 | Human World – EarthSky

World timekeepers have decreed there will be no leap second on December 31, 2020.

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The last leap second was added on December 31, 2016, just before midnight UTC.
The International Earth Rotation and Reference Systems Service announced in July 2020 that there’d be no leap second added to the world’s official timekeeping in December 2020. The last leap second was December 31, 2016. Since leap seconds are always added on the last day of June or December, the next possible date for a leap second is June 30, 2021.
Leap seconds have been added 27 times since 1972. There were leap seconds…

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