Earth's spin was completed in 1.59 milliseconds on June 29, 2022, the shortest day since the beginning of the rotation.
Every 8,640,000 milliseconds, the Earth completes a full spin on its axis. The speed can change from day to day. The length of a day can change, but only by a small amount.
Long-term changes are also happening on our planet. The planet was spinning slower and taking longer to complete a day before. Earth has taken a few milliseconds longer to complete a spin.
Earth is moving fast.
The long-term trend has been reversing recently. The Earth is speeding up and taking less time to complete it's spin.
The website Time and Date reported in December of 2020 that the Earth had experienced its 28th shortest day since scientists began measuring the length of a day with atomic clocks.
Earth completed a rotation in under 24 hours on July 19, 2020, setting a new record. The record was broken on June 29, 2022.
It wouldn't stay in the second-fastest day placement for long. The second place day was once again dethroned when Earth experienced a - 1.5 millisecond day on July 26, 2022.
Scientists have a number of theories as to why Earth suddenly begins speeding up its rotation. The planet's climate can be involved in these ideas.
One team of researchers believes that the shortening of days could be related to a small irregular movement in the Earth's geographical poles and its axis of rotation.
The normal wobble at Earth's surface is three to four meters, but in the last few years it has gone missing. There is a new tab called Time and Date.
The introduction of a negative leap second may be required if the day length continues to decrease.
Zotov isn't sure if this measure will be needed. Day lengths may not be shortened much more.
He thinks there's a 70% chance that we're at the minimum.
Zotov and his colleague will present their hypothesis at the annual meeting of the Asia Oceania Geosciences Society which will be broadcasted online.
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