Years, Leap Years, Number of Days and Weeks in a Year

List of years 1800-2100

ISO weeks: Number of weeks according to ISO-8601 (weeks starting on Monday). The first week is the week with a Thursday in the new year (the first 4-day week).
Leap years: Every year that is divisible by four is a leap year, except for years that are divisible by 100 but not by 400.
The next leap year will be in 2028.
Watches with a perpetual calendar function will automatically adjust for leap years.
Use the "leap year cycle" column to set watches with a perpetual calendar function.

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Year	Nr of days	Nr of ISO weeks	Leap year	Leap Year Cycle
Show years 1800-2000
1800	365	52		Year IV
1801	365	53		Year I
1802	365	52		Year II
1803	365	52		Year III
1804	366	52	Yes	Year IV
1805	365	52		Year I
1806	365	52		Year II
1807	365	53		Year III
1808	366	52	Yes	Year IV
1809	365	52		Year I
1810	365	52		Year II
1811	365	52		Year III
1812	366	53	Yes	Year IV
1813	365	52		Year I
1814	365	52		Year II
1815	365	52		Year III
1816	366	52	Yes	Year IV
1817	365	52		Year I
1818	365	53		Year II
1819	365	52		Year III
1820	366	52	Yes	Year IV
1821	365	52		Year I
1822	365	52		Year II
1823	365	52		Year III
1824	366	53	Yes	Year IV
1825	365	52		Year I
1826	365	52		Year II
1827	365	52		Year III
1828	366	52	Yes	Year IV
1829	365	53		Year I
1830	365	52		Year II
1831	365	52		Year III
1832	366	52	Yes	Year IV
1833	365	52		Year I
1834	365	52		Year II
1835	365	53		Year III
1836	366	52	Yes	Year IV
1837	365	52		Year I
1838	365	52		Year II
1839	365	52		Year III
1840	366	53	Yes	Year IV
1841	365	52		Year I
1842	365	52		Year II
1843	365	52		Year III
1844	366	52	Yes	Year IV
1845	365	52		Year I
1846	365	53		Year II
1847	365	52		Year III
1848	366	52	Yes	Year IV
1849	365	52		Year I
1850	365	52		Year II
1851	365	52		Year III
1852	366	53	Yes	Year IV
1853	365	52		Year I
1854	365	52		Year II
1855	365	52		Year III
1856	366	52	Yes	Year IV
1857	365	53		Year I
1858	365	52		Year II
1859	365	52		Year III
1860	366	52	Yes	Year IV
1861	365	52		Year I
1862	365	52		Year II
1863	365	53		Year III
1864	366	52	Yes	Year IV
1865	365	52		Year I
1866	365	52		Year II
1867	365	52		Year III
1868	366	53	Yes	Year IV
1869	365	52		Year I
1870	365	52		Year II
1871	365	52		Year III
1872	366	52	Yes	Year IV
1873	365	52		Year I
1874	365	53		Year II
1875	365	52		Year III
1876	366	52	Yes	Year IV
1877	365	52		Year I
1878	365	52		Year II
1879	365	52		Year III
1880	366	53	Yes	Year IV
1881	365	52		Year I
1882	365	52		Year II
1883	365	52		Year III
1884	366	52	Yes	Year IV
1885	365	53		Year I
1886	365	52		Year II
1887	365	52		Year III
1888	366	52	Yes	Year IV
1889	365	52		Year I
1890	365	52		Year II
1891	365	53		Year III
1892	366	52	Yes	Year IV
1893	365	52		Year I
1894	365	52		Year II
1895	365	52		Year III
1896	366	53	Yes	Year IV
1897	365	52		Year I
1898	365	52		Year II
1899	365	52		Year III
1900	365	52		Year IV
1901	365	52		Year I
1902	365	52		Year II
1903	365	53		Year III
1904	366	52	Yes	Year IV
1905	365	52		Year I
1906	365	52		Year II
1907	365	52		Year III
1908	366	53	Yes	Year IV
1909	365	52		Year I
1910	365	52		Year II
1911	365	52		Year III
1912	366	52	Yes	Year IV
1913	365	52		Year I
1914	365	53		Year II
1915	365	52		Year III
1916	366	52	Yes	Year IV
1917	365	52		Year I
1918	365	52		Year II
1919	365	52		Year III
1920	366	53	Yes	Year IV
1921	365	52		Year I
1922	365	52		Year II
1923	365	52		Year III
1924	366	52	Yes	Year IV
1925	365	53		Year I
1926	365	52		Year II
1927	365	52		Year III
1928	366	52	Yes	Year IV
1929	365	52		Year I
1930	365	52		Year II
1931	365	53		Year III
1932	366	52	Yes	Year IV
1933	365	52		Year I
1934	365	52		Year II
1935	365	52		Year III
1936	366	53	Yes	Year IV
1937	365	52		Year I
1938	365	52		Year II
1939	365	52		Year III
1940	366	52	Yes	Year IV
1941	365	52		Year I
1942	365	53		Year II
1943	365	52		Year III
1944	366	52	Yes	Year IV
1945	365	52		Year I
1946	365	52		Year II
1947	365	52		Year III
1948	366	53	Yes	Year IV
1949	365	52		Year I
1950	365	52		Year II
1951	365	52		Year III
1952	366	52	Yes	Year IV
1953	365	53		Year I
1954	365	52		Year II
1955	365	52		Year III
1956	366	52	Yes	Year IV
1957	365	52		Year I
1958	365	52		Year II
1959	365	53		Year III
1960	366	52	Yes	Year IV
1961	365	52		Year I
1962	365	52		Year II
1963	365	52		Year III
1964	366	53	Yes	Year IV
1965	365	52		Year I
1966	365	52		Year II
1967	365	52		Year III
1968	366	52	Yes	Year IV
1969	365	52		Year I
1970	365	53		Year II
1971	365	52		Year III
1972	366	52	Yes	Year IV
1973	365	52		Year I
1974	365	52		Year II
1975	365	52		Year III
1976	366	53	Yes	Year IV
1977	365	52		Year I
1978	365	52		Year II
1979	365	52		Year III
1980	366	52	Yes	Year IV
1981	365	53		Year I
1982	365	52		Year II
1983	365	52		Year III
1984	366	52	Yes	Year IV
1985	365	52		Year I
1986	365	52		Year II
1987	365	53		Year III
1988	366	52	Yes	Year IV
1989	365	52		Year I
1990	365	52		Year II
1991	365	52		Year III
1992	366	53	Yes	Year IV
1993	365	52		Year I
1994	365	52		Year II
1995	365	52		Year III
1996	366	52	Yes	Year IV
1997	365	52		Year I
1998	365	53		Year II
1999	365	52		Year III
2000	366	52	Yes	Year IV
2001	365	52		Year I
2002	365	52		Year II
2003	365	52		Year III
2004	366	53	Yes	Year IV
2005	365	52		Year I
2006	365	52		Year II
2007	365	52		Year III
2008	366	52	Yes	Year IV
2009	365	53		Year I
2010	365	52		Year II
2011	365	52		Year III
2012	366	52	Yes	Year IV
2013	365	52		Year I
2014	365	52		Year II
2015	365	53		Year III
2016	366	52	Yes	Year IV
2017	365	52		Year I
2018	365	52		Year II
2019	365	52		Year III
2020	366	53	Yes	Year IV
2021	365	52		Year I
2022	365	52		Year II
2023	365	52		Year III
2024	366	52	Yes	Year IV
2025	365	52		Year I
2026	365	53		Year II
2027	365	52		Year III
2028	366	52	Yes	Year IV
2029	365	52		Year I
2030	365	52		Year II
2031	365	52		Year III
2032	366	53	Yes	Year IV
2033	365	52		Year I
2034	365	52		Year II
2035	365	52		Year III
2036	366	52	Yes	Year IV
2037	365	53		Year I
2038	365	52		Year II
2039	365	52		Year III
2040	366	52	Yes	Year IV
2041	365	52		Year I
2042	365	52		Year II
2043	365	53		Year III
2044	366	52	Yes	Year IV
2045	365	52		Year I
2046	365	52		Year II
2047	365	52		Year III
2048	366	53	Yes	Year IV
2049	365	52		Year I
2050	365	52		Year II
2051	365	52		Year III
2052	366	52	Yes	Year IV
2053	365	52		Year I
2054	365	53		Year II
2055	365	52		Year III
2056	366	52	Yes	Year IV
2057	365	52		Year I
2058	365	52		Year II
2059	365	52		Year III
2060	366	53	Yes	Year IV
2061	365	52		Year I
2062	365	52		Year II
2063	365	52		Year III
2064	366	52	Yes	Year IV
2065	365	53		Year I
2066	365	52		Year II
2067	365	52		Year III
2068	366	52	Yes	Year IV
2069	365	52		Year I
2070	365	52		Year II
2071	365	53		Year III
2072	366	52	Yes	Year IV
2073	365	52		Year I
2074	365	52		Year II
2075	365	52		Year III
2076	366	53	Yes	Year IV
2077	365	52		Year I
2078	365	52		Year II
2079	365	52		Year III
2080	366	52	Yes	Year IV
2081	365	52		Year I
2082	365	53		Year II
2083	365	52		Year III
2084	366	52	Yes	Year IV
2085	365	52		Year I
2086	365	52		Year II
2087	365	52		Year III
2088	366	53	Yes	Year IV
2089	365	52		Year I
2090	365	52		Year II
2091	365	52		Year III
2092	366	52	Yes	Year IV
2093	365	53		Year I
2094	365	52		Year II
2095	365	52		Year III
2096	366	52	Yes	Year IV
2097	365	52		Year I
2098	365	52		Year II
2099	365	53		Year III
2100	365	52		Year IV

Years, Leap Years, Number of Days and Weeks in a Year

List of years 1800-2100

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