Tuesday, June 30, 2015

Leap Second

At the very end of the day today, the clock read 11:59:60 Universal Time or 7:59:60 pm ET.

Astronomers at the International Earth Rotation and Reference Systems Service in Paris decided earlier this year on the extra tick of the clock at the end of June 30th, just before midnight -- the 26th time that's happened since the world started using atomic clocks.

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