Remembering Calender

CALENDER
1. You might have heard of some very gifted people who can calculate the day of the week for any given date in their heads quickly.
2. If anybody gives you any date, for example 14th January 2014, the calculation should be made as follow.
3. The date given above has three components
a) Date 14 b) Month –January c) Year- 2014
4. For calculation, the dates should be taken as it is. The months and years have code numbers. The month codes are as follows
Jan Feb Mar Apr May June July Aug Sept Oct Nov Dec
1 4 4 0 2 5 0 3 6 1 4 6
5. The century spanning from 1901 to 2000 is called a standard century. The year codes for the standard century are as follows.
Standard Century Year Codes:
1901 1 1911 6 1921 5 1931 3 1941 2 1951 0 1961 6 1971 4 1981 3 1991 1
1902 2 1912 1 1922 6 1932 5 1942 3 1952 2 1962 0 1972 6 1982 4 1992 3
1903 3 1913 2 1923 0 1933 6 1943 4 1953 3 1963 1 1973 0 1983 5 1993 4
1904 5 1914 3 1924 2 1934 0 1944 6 1954 4 1964 3 1974 1 1984 0 1994 5
1905 6 1915 4 1925 3 1935 1 1945 0 1955 5 1965 4 1975 2 1985 1 1995 6
1906 0 1916 6 1926 4 1936 3 1946 1 1956 0 1966 5 1976 4 1986 2 1996 1
1907 1 1917 0 1927 5 1937 4 1947 2 1957 1 1967 6 1977 5 1987 3 1997 2
1908 3 1918 1 1928 0 1938 5 1948 4 1958 2 1968 1 1978 6 1988 5 1998 3
1909 4 1919 2 1929 1 1939 6 1949 5 1959 3 1969 2 1979 0 1989 6 1999 4
1910 5 1920 4 1930 2 1940 1 1950 6 1960 5 1970 3 1980 2 1990 0 2000 6
2001 0 2002 1 2003 2 2004 4 2005 5 2006 6 2007 0 2008 2 2009 3 2010 4
6. To find out the day for a given date, the month code and the year code should be totaled and the total should be divided by 7. Ignore the quotient and only the remainder or balance should be taken when the Remainder or Balance is
R or B Day The total of the three
1 Sunday 1, 8, 15, 22, 29, 36, 43
2 Monday 2, 9, 16, 23, 30, 37
3 Tuesday 3, 10, 17, 24, 31, 38
4 Wednesday 4, 11, 18, 25, 32, 39
5 Thursday 5, 12, 19, 26, 33, 40
6 Friday 6, 13, 20, 27 34, 41
 0 Saturday 7, 14, 21, 28, 35, 42
7. To know the year code for other Centuries: One number should be deducted from the standard century for the years beyond the year 2000. Example 1904 the code is 5 whereas for 2004 is 4. The calculation for the century ahead of the standard century namely 1800, 1700 etc, two numbers should be added to the standard century codes. For example 1999 = 4 but 1899 is 6.
8. For leap years February has 29 days. Therefore whenever you calculate for the month of January- and February of the leap year, you have to deduct one number from the total.
Calculating the day of the dates
 Example.1  14th January 2014
The formula for calculating the day is to total the date plus month Code plus Year code and the total of the three as follows.
-Date (14) + Month (January) + year (2014) i.e. 14+1+2=17 is Tuesday
Example.2  18th February 2008
2008 is a leap year,
 18 + (Code) 4 + (Code) 2 = 24; 24-1= 23. If 23 is Monday.
Example.3  23 December 1957
 23 + 6 + 1 =30, 30 means Monday
9. To memorise the year codes,  you have to connect the year codes with the Memory Files. For example 1901 can be taken as Memory file number one (Mother). Similarly, 1902 the Memory file number two (Father) should be connected to code number 2. Similarly the code for 2000 is 6 which should be connected to file number 100 (Dr. Xavier).
10.  To remember the code number the following objects can be taken
Code Number Object to be taken
1 Gun
2 Zoo
3 Tree
4 Dore
5 Bee hive
6 Mix or Fix
0 Egg

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