Atomic clocks — among the most precise instruments humans have ever built — have been keeping track of Earth’s spin since the 1950s. But what they show today is unexpected. Our planet, which for decades had been slowing down in its rotation, is suddenly speeding up.

Earth is expected to complete a full rotation on July 9 roughly 1.30 milliseconds faster than usual. WASHINGTON — Wednesday will be slightly shorter than usual thanks to our planet's Earth is expected to complete a full rotation on July 9 in roughly 1.

The International Earth Rotation and Reference Systems Service (IERS) reports that Earth is currently spinning faster, leading to July 9 being the shortest day ever recorded., Science News - Times Now