Skip to main content

The Leap Year Explained

  • 299,523 Views
  • 1,236 Questions Answered
  • Best of Web

Let’s Begin…

Every four years, we gain an extra calendar day. But why? Neil deGrasse Tyson explains the science behind the leap year.


Customize this lesson42

Create and share a new lesson based on this one.

About TED-Ed Best of Web

TED-Ed Best of Web are exceptional, user-created lessons that are carefully selected by volunteer teachers and TED-Ed staff.

Meet The Creators

Additional Resources for you to Explore
Interested in Leap Year? Find out more about the historical context here.

Customize this lesson

Create and share a new lesson based on this one.

About TED-Ed Best of Web

TED-Ed Best of Web are exceptional, user-created lessons that are carefully selected by volunteer teachers and TED-Ed staff.

Meet The Creators

More from How Things Work