Summer 2025 will have three of the shortest days on record as Earth’s rotation unexpectedly accelerates

Time is not on your side this summer.

The Earth is set to have three remarkably shorter than average days in the coming weeks as the Earth’s rotation unexpectedly accelerates, according to scientists.

Our pale blue dot’s daily rotation is normally equivalent to about 86,400 seconds — or 24 hours — but three days this summer will see as much as 1.51 milliseconds shaved off the clock, according to a report from Popular Mechanics.

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