EARTHS ROTATION DAY 2015 !! A leap second will be added to 2015 - TopicsExpress



          

EARTHS ROTATION DAY 2015 !! A leap second will be added to 2015 to keep atomic clock time in sync with Earths actual rotational time. The last minute of June 30, 2015 will have 61 seconds. A leap second is a one-second adjustment that is occasionally applied to Coordinated Universal Time (UTC) in order to keep its time of day close to the mean solar time. Without such a correction, time reckoned by Earths rotation drifts away from atomic time because of irregularities in the Earths rate of rotation. Since this system of correction was implemented in 1972, 25 such leap seconds have been inserted. The most recent one happened on June 30, 2012 at 23:59:60 UTC. A leap second will again be inserted at the end of June 30, 2015 at 23:59:60 UTC. #RaJ
Posted on: Fri, 09 Jan 2015 15:03:56 +0000

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