Vérifiez si une année est bissextile et apprenez les règles.
2026 is NOT a Leap Year
2026 has 365 days. February has 28 days.
Divisible by 4? No
The year must be evenly divisible by 4.
Divisible by 100? No
If divisible by 100, it is NOT a leap year...
Divisible by 400? No
...UNLESS it is also divisible by 400. Then it IS a leap year.
Une année bissextile survient tous les 4 ans pour synchroniser notre calendrier.
Planifiez avec le Calculateur de Dates.
Tous les 4 ans.
La Terre met ~365,25 jours pour orbiter le Soleil.
Oui ! Divisible par 400.
People born on Feb 29 ("leaplings") typically celebrate their birthday on Feb 28 or March 1 in non-leap years. They only get their "real" birthday every 4 years!
Instantly verify if any year is a leap year.
See a list of the next upcoming leap years.
Learn the complete rules for determining leap years.
Check if any year is a leap year with our free online tool. See upcoming leap years, learn the rules, and understand why we have them. Instant results for any year — past or future.
A year is a leap year if it's divisible by 4, except for century years which must be divisible by 400. For example, 2024 is a leap year, 1900 is not, but 2000 is.
Our tool shows a list of upcoming leap years. Leap years occur every 4 years (with the century exception).
Leap years keep our calendar aligned with Earth's orbit around the Sun, which takes approximately 365.25 days.
Last updated: February 12, 2026