2017 will come a second later

The International Earth Rotation Service has announced that it will add one second of coordination to time in 2016. As a result, according to UTC, the new year will come a second later.

December 31 UTC time will go like this:

December 31, 2016, 23:59:59
December 31, 2016, 23:59:60
January 01, 2017, 0:00:00

An extra second is needed so that the universal time, measured by atomic clocks, does not diverge from astronomical time. In the 1930s, scientists found that the Earth does not always rotate at the same speed, after which they decided to introduce a coordination second. This is the 27th time scientists have used this second.