Leap Year Calculator 2025

Leap Year Calculator

A leap year must be:

  • Divisible by 4
  • Not divisible by 100, unless also divisible by 400

1. What is a Leap Year Calculator?

A Leap Year Calculator is a tool that determines whether a specific year is a leap year or not. It follows the leap year rule based on the Gregorian calendar.

2. How does the Leap Year Calculator work?

The calculator checks if a given year is divisible by 4. However, if the year is also divisible by 100, it must also be divisible by 400 to be considered a leap year.

3. What is a leap year?

A leap year is a year with 366 days instead of the usual 365. An extra day, February 29, is added to keep the calendar year synchronized with the Earth's orbit around the Sun.

4. What are the rules for determining a leap year?

A year is a leap year if:

  • It is divisible by 4 (e.g., 2024, 2028).
  • But if divisible by 100, it must also be divisible by 400 (e.g., 2000 was a leap year, but 1900 was not).

5. Why do we have leap years?

Leap years exist to correct the slight mismatch between the calendar year (365 days) and the Earth's actual orbit around the Sun (approximately 365.2425 days). Without leap years, our calendar would slowly drift out of sync with the seasons.

6. When is the next leap year?

The next leap year is 2028, followed by 2032, 2036, and so on.

7. Was the year 2000 a leap year?

Yes, 2000 was a leap year because, although it is divisible by 100, it is also divisible by 400.

8. Was the year 1900 a leap year?

No, 1900 was not a leap year because, although it is divisible by 100, it is not divisible by 400.

9. What happens if my birthday is on February 29?

If you were born on February 29, you have a birthday only in leap years. In non-leap years, people usually celebrate on February 28 or March 1.

10. Can the Leap Year Calculator check past and future years?

Yes! The calculator works for any year in the past or future as long as it follows the leap year rules of the Gregorian calendar.

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