On July 29, the Earth completed its rotation before the end of 24 hours; Is this the reason?

On July 29, the Earth completed its rotation before the end of 24 hours;  Is this the reason?

On July 29, Earth completed a full rotation 1.59 milliseconds faster than its normal rotation.

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New York, First Published 1 Aug 2022, 4:46 PM IST

NoOur land is not the same now. The rotation is quite fast. On July 29, Earth completed a full rotation 1.59 milliseconds faster than its normal rotation. This day holds the record for the shortest day.

According to the ‘Independent’, Earth’s rotation speed has recently increased. The shortest day since 1960 was in July 2020. After that, the shortest day ever was recorded on July 29 this year.

The Earth’s rotation on July 19, 2020 was 1.47 milliseconds shorter than a 24-hour day. The Earth continued to rotate rapidly over the next year. But it didn’t break any records. The reason for the difference in the Earth’s rotation speed is still unknown.

But scientists hypothesize that it could be caused by processes in the inner or outer layers of the core, oceans, tides or changes in climate. Some researchers say it may be related to the Earth’s movement across the geological surface.

This is referred to as the “Chandler Wobble”. This type of time jump can cause programs that depend on them to crash and corrupt data due to timestamps in data storage.

If a negative leap second occurs, the clock will change from 23:59:58 to 00:00:00, potentially damaging software that relies on timers and schedulers, the researchers say. International timekeepers may need to add negative leap seconds to compensate for this.
Coordinated Universal Time, the primary time standard that governs the world’s clocks and time, is already updated 27 times per leap second.

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Last updated on 1 August 2022, 5:09 PM IST

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