Leap Day vs. Leap Year: What’s the Difference?

It's important to know that leap years have 366 days instead of the typical 365 days and occur almost every four years. The only real difference between the two terms is this: Leap years are years with one extra day, and leap days are that day. It's as simple as that!

A leap year is a year with an extra day, February 29th. It occurs every four years. The next leap year is 2020.

The purpose of a leap year is to keep the calendar year synchronized with the astronomical or seasonal year.

There are three different ways to calculate a leap year:

  • The first way is to divide the year in two. If the first half is a leap year, then the second half is a leap year. This calculation works for any year except for the years 1600, 2000, and 2400.
  • The second way is to take the last two digits of the year and divide them by four. If the result is zero, then the year is a leap year. This calculation works for any year except for the years 1600, 2000, and 2400.
  • The third way is to take the last two digits of the year and divide them by four. If the result is zero, then the year is a leap year. This calculation works for any year except for the years 1600, 2000, and 2400.

There are two types of leap years: common years and leap years.

A common year has 365 days and a leap year has 366 days. The extra day in a leap year is February 29th.

In the Gregorian calendar, the days of the year are divided into weeks. There are 52 weeks in a year, plus one day (February 29th). This day is called a leap day.

A leap year has 366 days, divided into 52 weeks and 2 days. The 2 days are February 29th and February 28th.

In a leap year, February has 29 days. This is because there are an extra 24 hours in February, so one day is added to the month.