Amy Sinclair

In the Gregorian calendar used throughout most of the world, a Leap Year is a calendar year that contains an additional day, called a Leap Day, added to keep the calendar year synchronized with the seasons. In use since the 1500’s, a Leap Day compensates for the small amount of extra time it takes the Earth to make a full trip around the sun and allows for a realignment of the Gregorian calendar with the Earth’s position in the solar system.