Earth has recorded the shortest day ever, with 1.59 milliseconds shortened from a 24-hour rotation.

It all ended so quickly! Earth has recorded the shortest day ever, with 1.59 milliseconds shortened from a 24-hour rotation.

Planet Earth has recorded the shortest day since recording began.

The 1.59 milliseconds slicing off the normal 24-hour rotation on June 29 makes it more likely that a leap second will be needed to synchronize the clocks. This will be the first time the global clock has been sped up.

The Earth’s rotation is known to be slowing down: since the 1970s, it takes 27 extra seconds to maintain the accuracy of atomic time. The last was on New Year’s Eve 2016, when the clock stopped for a second so the Earth could catch up.

There are other factors that can affect the length of Earth’s days, including snow accumulating on northern hemisphere mountains in the winter and then melting in the summer.

But since 2020, this phenomenon has reversed, with the previous fastest day being -1.47 milliseconds on July 19 of that year. Humans cannot detect the change, but it may affect satellites and navigation systems.

Experts say that the “Chandler wobble” – a change in the rotation of the Earth around its axis – may be to blame. Dr. Leonid Zotov of the Sternberg Astronomical Institute in Moscow said: “The normal oscillation amplitude is about four meters on the Earth’s surface, but from 2017 to 2020 it disappeared.”

Experts say that the

Experts say that the “Chandler wobble” – a change in the rotation of the Earth around its axis – may be to blame.

There are other factors that can affect the length of Earth’s days, including snow accumulating on northern hemisphere mountains in the winter and then melting in the summer.

It is also believed that global warming is affecting the melting of ice and snow at a faster rate.

The International Earth Rotation Service in Paris monitors the planet’s rotation and tells nations when leap seconds need to be added or removed, giving them six months’ notice.