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'leap Second' Lengthens Weekend
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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