Date & Time Utilities
Leap Year Checker
Check if any year is a leap year with mathematical divisibility rules (4, 100, 400), days in February, and range generator.
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Gregorian Calendar Rules Applied
Rule 1: Divisible by 4?
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Rule 2: Divisible by 100?
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Rule 3: Divisible by 400?
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Previous Leap Year
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leap year before
Next Leap Year
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upcoming leap year