By Strange Sounds -Dec 26, 2020
We want 2020 to finish as quickly as possible.
And it seems our Earth feels the same way, as it has been spinning unusually fast lately. 2020 included the 28 shortest days since 1960.
Earth rotates at irregular speedThe Earth rotates once every 86,400 seconds – or 24 hours, or one solar day.
But its speed is irregular and the length of a day can vary by milliseconds (1 millisecond equals 0.001 seconds).
The speed of the Earth’s rotation varies constantly because of the complex motion of its molten core, oceans and atmosphere, plus other effects.
Shortest day on record in 2020Before 2020, the shortest day was July 5, 2005, with an Earth’s rotation lasting 1.0516 milliseconds less than 86,400 seconds.
But on July 19, 2020, the Earth completed its rotation in 1.4602 milliseconds less than 86,400 seconds, beating the previous record.
More:
https://strangesounds.org/2020/12/earth-spins-faster.html