Leap Year Calculator

Is 2000 a leap year?

When is the next leap year?

Yes, 2000 is a leap year. The next leap year is 2024.

The last leap year was 2020. It was 366 days in 2020.

What is a leap year?

If you counted all the days in a calendar from January to December in an ordinary year, you'd get 365 days. However, February has 29 days every four years (with some exceptions) instead of 28. The year consists of 366 days. This is referred to as a leap year.

How many days in a leap year?

A leap year has 366 days.

Is 1992 a leap year? Yes 1992 is a leap year
Is 1996 a leap year? Yes 1996 is a leap year
Is 2000 a leap year? Yes 2000 is a leap year
Is 2004 a leap year? Yes 2004 is a leap year
Is 2008 a leap year? Yes 2008 is a leap year
Is 2012 a leap year? No 2012 is not a leap year
Is 2016 a leap year? Yes 2016 is a leap year
Is 2018 a leap year? No 2018 is not a leap year
Is 2021 a leap year? No 2021 is not a leap year
Is 2022 a leap year? No 2022 is not a leap year
Is 2023 a leap year? No 2023 is not a leap year
Is 2024 a leap year? Yes 2024 is a leap year
Is 2025 a leap year? Yes 2025 is a leap year
Is 2026 a leap year? Yes 2026 is a leap year
Is 2027 a leap year? Yes 2027 is a leap year
Is 2028 a leap year? Yes 2028 is a leap year
Is 2100 a leap year? No 2100 is not a leap year

Leap year list

1904, 1908, 1912, 1916, 1920, 1924, 1928, 1932, 1936, 1940, 1944, 1948, 1952, 1956, 1960, 1964, 1968, 1972, 1976, 1980, 1984, 1988, 1992, 1996, 2000, 2004, 2008, 2012, 2016, 2020, 2024, 2028, 2032, 2036, 2040, 2044, 2048, 2052, 2056, 2060, 2064, 2068, 2072, 2076, 2080, 2084, 2088, 2092, 2096, 2104, 2108, 2112, 2116, 2120, 2124, 2128, 2132, 2136, 2140, 2144, 2148, 2152, 2156, 2160, 2164, 2168, 2172, 2176, 2180, 2184, 2188, 2192, 2196, 2204, 2208, 2212, 2216, 2220, 2224, 2228, 2232, 2236, 2240, 2244, 2248, 2252, 2256, 2260, 2264, 2268, 2272, 2276, 2280, 2284, 2288, 2292, 2296, 2304, 2308, 2312, 2316, 2320, 2324, 2328, 2332, 2336, 2340, 2344, 2348, 2352, 2356, 2360, 2364, 2368, 2372, 2376, 2380, 2384, 2388, 2392, 2396, 2400, 2404, 2408, 2412, 2416, 2420, 2424, 2428, 2432, 2436, 2440, 2444, 2448, 2452, 2456, 2460, 2464, 2468, 2472, 2476, 2480, 2484, 2488, 2492, 2496, 2504, 2508, 2512, 2516, 2520, 2524, 2528, 2532, 2536, 2540, 2544, 2548, 2552, 2556, 2560, 2564, 2568, 2572, 2576, 2580, 2584, 2588, 2592, 2596, 2604, 2608, 2612, 2616, 2620, 2624, 2628, 2632, 2636, 2640, 2644, 2648, 2652, 2656, 2660, 2664, 2668, 2672, 2676, 2680, 2684, 2688, 2692, 2696, 2704, 2708, 2712, 2716, 2720, 2724, 2728, 2732, 2736, 2740, 2744, 2748, 2752, 2756, 2760, 2764, 2768, 2772, 2776, 2780, 2784, 2788, 2792, 2796, 2800, 2804, 2808, 2812, 2816, 2820, 2824, 2828, 2832, 2836, 2840, 2844, 2848, 2852, 2856, 2860, 2864, 2868, 2872, 2876, 2880, 2884, 2888, 2892, 2896, 2904, 2908, 2912, 2916, 2920, 2924, 2928, 2932, 2936, 2940, 2944, 2948, 2952, 2956, 2960, 2964, 2968, 2972, 2976, 2980, 2984, 2988, 2992, 2996

Leap year formula

To know if a year is a leap year, it has to be entirely divisible by 4, with the exception of years entirely divisible by 100: these have to be also entirely divisible by 400.
year mod 4 ≡ 0 AND year mod 100 ≢ 0
OR
year mod 100 ≡ 0 AND year mod 400 ≡ 0

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