January – Science, Technology, Environment, Defense

Leap second
An atomic clock at National Physical Laboratory (NPL) in New Delhi added ‘leap second’ (extra one second) to the Indian Standard Time (IST) at 5:29.59 hours on 1 January 2017 to synchronise with the Earth’s rotational clock. The clock was programmed to add an extra second to the year 2017 in order to compensate for a slowdown in the Earth’s rotation.
Why Extra Second Was Adde…

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