Earth rotates on its axes roughly every 24 hours – or 86,400 seconds. While it’s a timeframe we’ve come to expect, the reality is that due to the world’s imperfect shape and complicated interior, not every day is the same length.

Although it may sound alarming, experts insist that it is not something to be worried about. The impact on a year will be much less than a second.

Earth rotates around its axes approximately every 24 hours, or 86.400 seconds. Although it is a time frame we have come to expect, the truth is that the length of each day is not the same because of the world’s complex shape and interior.

A few hundred million years back, an Earth day was just 22 hours long. If you go back billions of years, it was closer to 19 hours. It is expected that the Earth will travel longer in the millions of years ahead, even though it appears to be moving faster than it does now.

Scientists still don’t know why Earth’s orbits are getting faster, but some believe it may be due to the phenomenon known as the “Chandler wobble”.

Leonid Zotov, a scientist, explained to timeanddate.com the Chandler wobble is a name for a small and irregular movement of Earth’s geographical poles across its surface. It disappeared from 2017 to 2020 which is very strange, he said, explaining why the days seemed slightly faster.

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