Leap year 2016 gets a leap second
A leap second will be added to the leap year 2016, which means clocks on December 31, 2016 at 23:59:59 will read 23:59:60 before ticking over to midnight 00:00:00. Leap seconds are added to ensure that the Coordinated Universal Time, the global measure of time, is adjusted to follow variations in the Earth’s rotation.