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Articles About Leap Year (21)

Bahá'í Leap Year

The Bahá'í leap year occurs when five extra days are added between the last two months of the calendar. Leap years usually occur every four years. more

Chinese Leap Month

Instead of adding one leap day on February 29 nearly every four years, the Chinese add a leap month every 3 years to keep their calendar in line with the Earth's rotation. more

The Ethiopian Leap Year

A leap year occurs every 4 years in the Ethiopian calendar when one extra day is added at the end of the year. more

February 30

February 30 actually existed at least twice in the past, according to historical records. more

The Hindu Leap Year

The Hindu leap year has an extra month and occurs once every 3 years or 4 times in 11 years. more

The Persian Leap Year

The Iranian or Persian calendar is one of the most accurate calendar systems ever devised. Find out what makes it so precise. more

Islamic Leap Year

A leap year in the tabular version of the Islamic Hijri calendar occurs 11 times in a 30-year cycle when one day is added to the last month of the year. more

Leap Day Birthdays

When do “leaplings” celebrate their birthdays – every year or only during leap years? more

Leap Year in Other Calendars

Most western countries use the Gregorian calendar, but some use other calendars. Some calendars even add a leap month instead of a leap day. more

Events in Leap Year 2016

The United States presidential election, the Olympic and Paralympic Summer Games happen in the leap year of 2016. more

What Is a Leap Year?

A leap year has 366 days, as opposed to a common year, which has 365. Nearly every four years is a Leap Year, and we add a leap day, an extra day on February 29. more

Is There a Perfect Calendar?

Our calendar does not accurately reflect the length of a tropical year, the time it takes Earth to complete a full orbit around the Sun. Why is that so and are there other calendars that do a better job? more

The Chinese Calendar

The Chinese calendar is one of the oldest calendars in modern society. It is a lunisolar calendar. more

The Ethiopian Calendar

The Ethiopian calendar is quite similar to the Julian calendar, which was the predecessor to the Gregorian calendar most countries use today. more

A Year Is Never 365 Days

The definition of a tropical year is the time it takes the Earth to complete a full orbit around the Sun. It is approximately 365.242189 days long. more

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