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'leap Second' Lengthens Weekend

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Digital clock

On Saturday night atomic clocks will read 23 hours, 59 minutes and 60 seconds.

Credit: Alamy

The world is about to get a well-earned long weekend but don't make big plans because it will only last an extra second. A so-called "leap second" will be added to the world's atomic clocks as they undergo a rare adjustment to keep them in step with the slowing rotation of the Earth.

From The Guardian
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