Perpetual calendar

PERPETUAL CALENDAR^©

ARISTEO CANLAS FERNANDO
Peace Crusader and Echo

Table number for years 1801 to 2100 in the Gregorian calendar

1801	3		1853	5		1901	1		1953	3		2001	0		2053	2
1802	4		1854	6		1902	2		1954	4		2002	1		2054	3
1803	5		1855	0		1903	3		1955	5		2003	2		2055	4
1804	16		1856	11		1904	14		1956	16		2004	13		2056	15
1805	1		1857	3		1905	6		1957	1		2005	5		2057	0
1806	2		1858	4		1906	0		1958	2		2006	6		2058	1
1807	3		1859	5		1907	1		1959	3		2007	0		2059	2
1808	14		1860	16		1908	12		1960	14		2008	11		2060	13
1809	6		1861	1		1909	4		1961	6		2009	3		2061	5
1810	0		1862	2		1910	5		1962	0		2010	4		2062	6
1811	1		1863	3		1911	6		1963	1		2011	5		2063	0
1812	12		1864	14		1912	10		1964	12		2012	16		2064	11
1813	4		1865	6		1913	2		1965	4		2013	1		2065	3
1814	5		1866	0		1914	3		1966	5		2014	2		2066	4
1815	6		1867	1		1915	4		1967	6		2015	3		2067	5
1816	10		1868	12		1916	15		1968	10		2016	14		2068	16
1817	2		1869	4		1917	0		1969	2		2017	6		2069	1
1818	3		1870	5		1918	1		1970	3		2018	0		2070	2
1819	4		1871	6		1919	2		1971	4		2019	1		2071	3
1820	15		1872	10		1920	13		1972	15		2020	12		2072	14
1821	0		1873	2		1921	5		1973	0		2021	4		2073	6
1822	1		1874	3		1922	6		1974	1		2022	5		2074	0
1823	2		1875	4		1923	0		1975	2		2023	6		2075	1
1824	13		1876	15		1924	11		1976	13		2024	10		2076	12
1825	5		1877	0		1925	3		1977	5		2025	2		2077	4
1826	6		1878	1		1926	4		1978	6		2026	3		2078	5
1827	0		1879	2		1927	5		1979	0		2027	4		2079	6
1828	11		1880	13		1928	16		1980	11		2028	15		2080	10
1829	3		1881	5		1929	1		1981	3		2029	0		2081	2
1830	4		1882	6		1930	2		1982	4		2030	1		2082	3
1831	5		1883	0		1931	3		1983	5		2031	2		2083	4
1832	16		1884	11		1932	14		1984	16		2032	13		2084	15
1833	1		1885	3		1933	6		1985	1		2033	5		2085	0
1834	2		1886	4		1934	0		1986	2		2034	6		2086	1
1835	3		1887	5		1935	1		1987	3		2035	0		2087	2
1836	14		1888	16		1936	12		1988	14		2036	11		2088	13
1837	6		1889	1		1937	4		1989	6		2037	3		2089	5
1838	0		1890	2		1938	5		1990	0		2038	4		2090	6
1839	1		1891	3		1939	6		1991	1		2039	5		2091	0
1840	12		1892	14		1940	10		1992	12		2040	16		2092	11
1841	4		1893	6		1941	2		1993	4		2041	1		2093	3
1842	5		1894	0		1942	3		1994	5		2042	2		2094	4
1843	6		1895	1		1943	4		1995	6		2043	3		2095	5
1844	10		1896	12		1944	15		1996	10		2044	14		2096	16
1845	2		1897	4		1945	0		1997	2		2045	6		2097	1
1846	3		1898	5		1946	1		1998	3		2046	0		2098	2
1847	4		1899	6		1947	2		1999	4		2047	1		2099	3
1848	15		1900	0		1948	13		2000	15		2048	12		2100	4
1849	0					1949	5					2049	4
1850	1					1950	6					2050	5
1851	2					1951	0					2051	6
1852	13					1952	11					2052	10

 

Common Year (1900 and 2100 are not leap years)

Table	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
0	0	3	3	6	1	4	6	2	5	0	3	5
1	1	4	4	0	2	5	0	3	6	1	4	6
2	2	5	5	1	3	6	1	4	0	2	5	0
3	3	6	6	2	4	0	2	5	1	3	6	1
4	4	0	0	3	5	1	3	6	2	4	0	2
5	5	1	1	4	6	2	4	0	3	5	1	3
6	6	2	2	5	0	3	5	1	4	6	2	4

 

Leap Year (every four years; 2000 is a leap year)

Table	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
10	0	3	4	0	2	5	0	3	6	1	4	6
11	1	4	5	1	3	6	1	4	0	2	5	0
12	2	5	6	2	4	0	2	5	1	3	6	1
13	3	6	0	3	5	1	3	6	2	4	0	2
14	4	0	1	4	6	2	4	0	3	5	1	3
15	5	1	2	5	0	3	5	1	4	6	2	4
16	6	2	3	6	1	4	6	2	5	0	3	5

 

DIRECTIONS: 

1. Get the table number for the year.  If the year is a common year, the table number consists of only one digit; if a leap year, two digits.
2. Get the constant to use for the month.
3. Add the constant to the date to get the sum. 
4. Divide the sum by 7 and note down the remainder. 
5. The remainder determines the DOW.  If it is 0, it is Sunday; 1, Monday; 2, Tuesday; 3, Wednesday; 4, Thursday; 5, Friday; 6, Saturday.

Examples: 

1. 1844-06-20 (June 20, 1844)
   1. The table number for 1844 is 10.
   2. The constant for June 1844 is 5.
   3. The sum of 20 + 5 = 25.
   4. 25/7 = 3 remainder 4.
   5. June 20, 1844 was a Thursday.

2.  1950-05-23 (May 23, 1950)

1.  The table number for 1950 is 6.
2. The constant for May 1950 is 0.
3. The sum of 23 + 0 = 23.
4. 23/7 = 3 remainder 2.
5. May 23, 1950 was a Tuesday.

3.  2011-02-05 (February 5, 2011)

1.  The table number for 2011 is 5.
2. The constant forFebruary 2011 is 1.
3. The sum of 5 + 1= 6.
4. 6/7 = 0 remainder 6.
5. February 5, 2011 is a Saturday.

File:  033-perpetual.htm     URL:  http://www.geocities.com/peacecrusader888/033-perpetual.htm
First uploaded:  2009-08-26     Last updated:  2009-08-26     Rev. No. 0

Copyright © 2009 Aristeo Canlas Fernando
All rights reserved.

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