Lunar Lag: Why Today Will Be One Second Longer

June 30, 2015 3:27 PM

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July will arrive a little late this year – one second late, to be exact.

Time will stand still for one second this evening (June 30) as a "leap second" is added to Coordinated Universal Time (UTC), the time standard by which most clocks are regulated. The International Earth Rotation and Reference Systems Service (IERS), which keeps track of time for the world, has decid...

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