February 2017 Current Affairs
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NPL syncs Leap second with Indian time

NPL syncs Leap second with Indian time
03 January 2017 Current Affairs: 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.

The Earth and rotation around its own axis is not regular, as sometimes slows down and sometimes speeds up due to various factors, including moon’s gravitational forces and earthquakes. 

As a result, astronomical time (UT1) gradually falls out of sync with atomic time (UTC). 

When the difference between UTC and UT1 approaches 0.9 seconds, a leap second is added to UTC through atomic clocks worldwide to match both times.

Adding leap second’ or second barely has an impact on the daily life. However, this one second shift is critical for applications requiring time accuracies in the nanosecond scale, which are critical in the fields of astronomy, satellite navigation, communication networks.


February 2017 Current affairs
27 FEB
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25 FEB
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24 FEB
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23 FEB
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22 FEB
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January 2017 Current affairs
31 JAN
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30 JAN
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28 JAN
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27 JAN
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25 JAN
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December 2016 Current affairs
31 DEC
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30 DEC
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29 DEC
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November 2016 Current affairs
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October 2016 Current affairs
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