Leap years are years where an extra day is added to the end of the shortest month, February. This so-called intercalary day, February 29, is commonly referred to as leap day.

February 29 is known as a leap day (or "leap year day"), which is periodically added as the last day of the month to the Julian and Gregorian calendars, as an intercalary date, to create leap …

Feb 29, 2016 · When it's a leap year? A leap year is a year with 366 days instead of 365; every 4 years in February one extra day is added. This is done because one year doesn't contain 365 …

Feb 19, 2025 · What Is a Leap Year? Simply put, a leap year is a year with an extra day—February 29—added nearly every 4 years to the calendar year. Why Are Leap Years …

Sep 25, 2025 · It takes approximately 365.25 days for Earth to orbit the Sun — a solar year. We usually round the days in a calendar year to 365. To make up for the missing partial day, we …

Leap years What is a leap year? A leap year is a year that does not have 365 days like a normal year, but 366 days. The additional day ("leap day") is the 29th of February. A leap year occurs …

Feb 27, 2025 · A leap year is a year with an extra day added to the calendar — also known as leap day — on the29th day of February. The purpose is to keep it aligned with the Earth's orbit …

Jan 23, 2025 · Find out if a given year is a leap year or not, or list all leap years in a given time period using this leap year calculator. List of leap years between two years.

A leap year is a year that has 366 days, instead of the usual 365 days. This happens every four years, when an extra day, February 29th, is added to the calendar.

A Leap year is every four years if the year is divisible by 4 (without a remainder) but not by 100. Exception: If the year is divisible by 400, it is a leap year.