January | 0 | July | 6 |
February | 3 | August | 2 |
March | 3 | September | 5 |
April | 6 | October | 0 |
May | 1 | November | 3 |
June | 4 | December | 5 |
Formula for DD/MM/YYYY : (DD + key(MM) + key(YYYY) + 1 "only if year is bissextile (background color is grey) and month after February") modulo 7
Example : 21 August 1962 => (21 + 2 + 0) modulo 7 = 2 => Tuesday
Example : 11 November 2012 => (11 + 3 + 6 + 1) modulo 7 = 0 => Sunday
Example : 27 February 1996 => (27 + 3 + 0) modulo 7 = 2 => Tuesday
1940 (0) | 1947 (2) | 1954 (4) | 1961 (6) |
1941 (2) | 1948 (3) | 1955 (5) | 1962 (0) |
1942 (3) | 1949 (5) | 1956 (6) | 1963 (1) |
1943 (4) | 1950 (6) | 1957 (1) | 1964 (2) |
1944 (5) | 1951 (0) | 1958 (2) | 1965 (4) |
1945 (0) | 1952 (1) | 1959 (3) | 1966 (5) |
1946 (1) | 1953 (3) | 1960 (4) | 1967 (6) |
1968 (0) | 1975 (2) | 1982 (4) | 1989 (6) |
1969 (2) | 1976 (3) | 1983 (5) | 1990 (0) |
1970 (3) | 1977 (5) | 1984 (6) | 1991 (1) |
1971 (4) | 1978 (6) | 1985 (1) | 1992 (2) |
1972 (5) | 1979 (0) | 1986 (2) | 1993 (4) |
1973 (0) | 1980 (1) | 1987 (3) | 1994 (5) |
1974 (1) | 1981 (3) | 1988 (4) | 1995 (6) |
1996 (0) | 2003 (2) | 2010 (4) | 2017 (6) |
1997 (2) | 2004 (3) | 2011 (5) | 2018 (0) |
1998 (3) | 2005 (5) | 2012 (6) | 2019 (1) |
1999 (4) | 2006 (6) | 2013 (1) | 2020 (2) |
2000 (5) | 2007 (0) | 2014 (2) | 2021 (4) |
2001 (0) | 2008 (1) | 2015 (3) | 2022 (5) |
2002 (1) | 2009 (3) | 2016 (4) | 2023 (6) |