Leap Year Checker
Identify whether a specific year includes an extra day (February 29) by applying the Gregorian leap year rules.
CalcSimpler Examples
- 2024 ⇒ 1
- 1900 ⇒ 0
- 2000 ⇒ 1
FAQ
Why isn't 1900 a leap year?
Years divisible by 100 are not leap years unless divisible by 400.
What does a result of 1 mean?
1 indicates the year is a leap year; 0 means it is not.
Does it work for any year?
Yes, it uses the proleptic Gregorian calendar for any integer year.
How often do leap years occur?
Generally every four years, except century years not divisible by 400.
Additional Information
- Leap years have 366 days to keep the calendar aligned with Earth's orbit.
- The rules maintain an average year length close to 365.2425 days.
CalcSimpler