Gregorian leap (divisible by 4, not by 100 unless by 400) and days in the year.
| Leap? | – |
| Days | – |
Use this calculator to check whether a civil year has 29 February.
A year is a leap year if it is divisible by 4, except century years, which must be divisible by 400. 2024 is a leap year (366 days). 1900 is not; 2000 is. The Julian rule (every 4 years with no century exception) is different and is not used here.
Year: Calendar year, for example 2024.
Leap?: Yes or no under the Gregorian rule.
Days: 366 or 365.
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