Officials clocks will hit the 23:59:59 as usual but will then read 23:59:60 before rolling into 2017.
This 'leap second' is slipped in periodically by timekeepers to keep our clocks in sync with the rotation of the Earth.
- Advertisement -
Most people will hopefully be having too much fun to notice but if left uncorrected over time it could cause problems with GPS and computer systems.
