Earth’s days getting longer, slower: study

Earth’s days are getting longer but you’re not likely to notice any time soon — it would take about 3.3 million years to gain just one minute, according to a study published on Wednesday.

Over the past 27 centuries, the average day has lengthened at a rate of about +1.8 milliseconds (ms) per century, a British research team concluded in the journal Proceedings of the Royal Society A.

This was “significantly less”, they said, than the rate of 2.3 ms per century previously estimated — requiring a mere 2.6 million years to add one minute.

“It’s a very slow process,” study lead co-author Leslie Morrison, a retired astronomer with Royal Greenwich Observatory, told AFP. full story

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