On June 30, 2015, we experienced a leap second and it’s been in the news ever since. Gabe Perez-Giz hosts a recent PBS Space Time episode explaining what is a leap second and why do we have one?
Every once in a while we add a second onto our days. Similar to the Leap Year, this is known as the Leap Second. But, if the Leap Year already helps us account for the offset from a calendar in days, what exactly does the Leap Second do? Check out this video for the answer!
Source: PBS Space Time