How To Use Leap second In A Sentence

• Under an international pact, the preference for leap seconds is December 31 or June 30.
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• It is because of this general slowing down of the Earth that leap seconds need to be inserted into some years.
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• So now we have International Atomic Time (TAI) with no leap seconds, and Coordinated Universal Time (UTC) which have drifted apart by 33 seconds since 1972. A Great Leap…Forward?
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• The last time a leap second was added was in the dying moments of 2005.
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