日数を時間数に変換する
日数を時間数に変換する
うるう年を確認する
その年がうるう年かどうかを確認し、うるう年情報を取得します。
時間ツール
うるう年とは何ですか?
閏年とは、暦年を天文年と一致させるために、1日（2月29日）が追加される年です。閏年は4年に1度発生しますが、100で割り切れるが400で割り切れない年は例外です。
入力テキスト
結果
うるう年を確認する 例
Find Birthdays on February 29
Check which years from 2025 to 2040 are leap years.
Input
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
Output
2025 is not a leap year.
2026 is not a leap year.
2027 is not a leap year.
2028 is a leap year.
2029 is not a leap year.
2030 is not a leap year.
2031 is not a leap year.
2032 is a leap year.
2033 is not a leap year.
2034 is not a leap year.
2035 is not a leap year.
2036 is a leap year.
2037 is not a leap year.
2038 is not a leap year.
2039 is not a leap year.
2040 is a leap year.
2025 is not a leap year.
2026 is not a leap year.
2027 is not a leap year.
2028 is a leap year.
2029 is not a leap year.
2030 is not a leap year.
2031 is not a leap year.
2032 is a leap year.
2033 is not a leap year.
2034 is not a leap year.
2035 is not a leap year.
2036 is a leap year.
2037 is not a leap year.
2038 is not a leap year.
2039 is not a leap year.
2040 is a leap year.