⏳ Time
うるう年計算機
A leap year is divisible by 4, unless divisible by 100 — unless also divisible by 400.
Result will appear here
計算式
leap = (y%4==0 && y%100!=0) || y%400==0
⏳ Time
A leap year is divisible by 4, unless divisible by 100 — unless also divisible by 400.
Result will appear here
leap = (y%4==0 && y%100!=0) || y%400==0