PBS Space Time

The Leap Second Explained

Season 1 Episode 28 | 2m 20s Video has closed captioning.

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!

Aired: 04/14/16

Rating: NR

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Problems Playing Video? | Closed Captioning