Leap Year Calculator
Ascertain bissextile classification revealing February twenty-ninth inclusion. Essential verification for multi-annual calendrical computations requiring precise interval enumeration.
❌
2025 Lacks Bissextile Extension
365 diurnal units
📅
Annual Duration
365
📆
February Length
28
🔢
Quad Divisible
No
🗓️
Classification
Common
Forthcoming Bissextile Years
20282032203620402044
Recent Bissextile Occurrences
201620202024
Frequently Asked Questions
What criteria determine bissextile classification?
Quadrennial divisibility qualifies except centennial years requiring additional four-hundred divisibility verification.
Why do orbital adjustments exist?
Astronomical rotation exceeds 365 precisely; periodic corrections maintain seasonal calendar synchronization.
When does subsequent bissextile occur?
Four-year intervals produce regular occurrence patterns: 2024, 2028, 2032 progression continues systematically.
What frequency characterizes these adjustments?
Approximately ninety-seven instances populate each four-century span following Gregorian standardization.