Why the leap second may disappear and a leap hour take its place

The leap second, added to the world’s clocks 27 times since 1972 to keep atomic time in step with the Earth’s rotation, is very likely never to be added again. Representatives of the International Bureau of Weights and Measures (BIPM) are considering abolishing it permanently at a meeting in Versailles that ends on Thursday, ABC reported. If the proposal is approved, the leap second could be replaced by a “leap hour”, which people might need to add many centuries from now