Calendars
Negative leap second may be needed to adjust for Earth spinning slower
Science
Dr. Thomas Hughes
Leap seconds are added because if Earth is rotating slower over millions of years then a Coordinated Universal Time (UTC) minute would ...
What is it? When is it? Meaning, origin of Feb. 29 date
Trending
Sophie Anderson
What is a leap year? Here’s the science behind the extra day. Why do we have leap years? The reason behind that ...
