Leap Year Calculator
Check if a specific year is a leap year and review a list of all leap years in a given range.
About this Calculator
The Leap Year Calculator checks whether a specific year has 366 days (leap year) or 365 days (common year). It explains the astronomical rule behind leap years and allows you to generate a custom list of all leap years between any two historical or future years.
Frequently Asked Questions
What is the rule of a Leap Year?
A year is a leap year if it is divisible by 4, except for end-of-century years (ending in 00), which must also be divisible by 400. For example, 2000 was a leap year, but 1900 was not.
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