Skip to main content

Why do we have leap years?

  • 407,671 Views
  • 2,495 Questions Answered
  • Best of Web

Let’s Begin…

Every four years, we gain an extra calendar day. Why is that? SciShow explains.

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
Avatar for Victoria Korenev
Will the calendar ever line up correctly, or will we continue to have these time issues with fractions of days?
03/02/2020 • 
 5 Responses
 / 5 Updates
Avatar for Isobel Rhodes
why is this so hard to get anyone feel the same?????????????
03/05/2020 • 
 6 Responses
 / 6 Updates
Avatar for Saravana Kumar Krishnan
Its a great theory and explanation that why a leap year exists, except that people from different culture and part of the globe wont align or agree to this. This would shake and shame people who has half knowledge and blindly believes time based astrology. May be one side of the argument will be more precise an other sides will be less.
03/31/2020 • 
 0 Responses
 / 0 Updates
Avatar for Dennis Pomorski
With the seasons lasting longer or sometimes being shorter, will the calendar ever have to be altered to fit these changes?
04/19/2020 • 
 0 Responses
 / 0 Updates

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