How is Leap Day calculated?

This event is observed every year on 29 February.

When is Leap Day 2004?

Name: Leap Day
Start: 2004-02-29
End: 2004-02-29
Location: Worldwide

Sunday, 29 February 2004

Leap Day occurs on 29 February in leap years, an extra day added to the calendar approximately every four years to keep the Gregorian calendar aligned with the Earth’s orbit around the Sun.

Frequently asked questions

When is Leap Day 2004?: Leap Day 2004 is on Sunday, 29 February 2004.
What day of the week is Leap Day 2004?: It falls on Sunday.
How is Leap Day calculated?: This event is observed every year on 29 February.