Earth is suddenly rotating faster and the shortest day just recorded – Interesting Engineering

Believe it or not, but you actually gained an extra 1.59 milliseconds to your day. We hope you spent it wisely!

But why? Well, according to TimeAndDate.com, on that day, our planet, as far as scientists can tell, set a new record for the quickest time to complete one rotation. In other words, while you "received" 24 hours that day, you only "spent" 24 hours less 1.59 milliseconds.

Bargain!

But what? Isn't the Earth's day exactly 24 hours? Actually, no, well, not quite.

The first thing to note is that there are actually "kinds" of days, depending on your definition.

What did you do with your extra time?

The first, a solar day, is a period of 24 hours during which the Earth rotates so that the Sun appears at the same location in the sky. However, a sidereal day, which is defined as 23 hours, 56 minutes, and 4.091 seconds, is the time it takes for Earth to complete one full rotation on its axis with respect to distant stars.

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Earth is suddenly rotating faster and the shortest day just recorded - Interesting Engineering

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