TexasHSFootball
07-10-2005, 12:33 AM
Here is how it works:
Significant values of each month
Jan = 0
Feb = 3
Mar = 3
Apr = 6
May = 1
Jun = 4
Jul = 6
Aug = 2
Sep = 5
Oct = 0
Nov = 3
Dec = 5
Values of each day:
Sun: 0
Mon: 1
Tue: 2
Wed: 3
Thu: 4
Fri: 5
Sat: 6
Take the year the person was born.. i am going to use SCOTSRULE's birthday as an example.. (Jan. 17, 1989)
1989.. drop the 19.. take 89.
89 divide it by 4 = 22.25 (drop the decimal remainder)
add that back to the year: 22 + 89
22 + 89 = 111
add that back to the day of month (17)
111 + 17 = 128
divide this number by 7, the days in the week...
128 / 7 = 18 r. 2
take the remainder and translate it into the day of the week.
Therefore Scotsrule was born on a Tuesday.
Day of the week =
(year / 4) + year + day + SV
----------------------------------
7
Notes: When working with a leap year, you should subtract 1 by from the significant value when you have to find a day in January or February.
The above formula only works for dates in the 20th century. FOr the 21st Century, you will subtract 1 from the SV. The reason is that the significant value for the months change as the centuries pass. The days rotate over a 400 year period. Every 400 years, a leap century occurs. Amazingly, every leap century begins with a Saturday. So anytime you have a centur that is divisible 400, you know that January 1 will fall on a Saturday. Saturday, January 1, 2000 is an example.
19th Century dates you must add 2 to the significant value.
18th Century dates you must add 3 to the significant value.
17th Century dates you must add 4 to the significant value.
The formula works for any century that's reckoned by the Gregorian calendar. The first year the formula works under this formula is 1582. Add 5 for those few years in the 16th Century.
21st Century dates you must subtract 1 from the significant value
22nd Century dates you must subtract 2 from the significant value
Significant values of each month
Jan = 0
Feb = 3
Mar = 3
Apr = 6
May = 1
Jun = 4
Jul = 6
Aug = 2
Sep = 5
Oct = 0
Nov = 3
Dec = 5
Values of each day:
Sun: 0
Mon: 1
Tue: 2
Wed: 3
Thu: 4
Fri: 5
Sat: 6
Take the year the person was born.. i am going to use SCOTSRULE's birthday as an example.. (Jan. 17, 1989)
1989.. drop the 19.. take 89.
89 divide it by 4 = 22.25 (drop the decimal remainder)
add that back to the year: 22 + 89
22 + 89 = 111
add that back to the day of month (17)
111 + 17 = 128
divide this number by 7, the days in the week...
128 / 7 = 18 r. 2
take the remainder and translate it into the day of the week.
Therefore Scotsrule was born on a Tuesday.
Day of the week =
(year / 4) + year + day + SV
----------------------------------
7
Notes: When working with a leap year, you should subtract 1 by from the significant value when you have to find a day in January or February.
The above formula only works for dates in the 20th century. FOr the 21st Century, you will subtract 1 from the SV. The reason is that the significant value for the months change as the centuries pass. The days rotate over a 400 year period. Every 400 years, a leap century occurs. Amazingly, every leap century begins with a Saturday. So anytime you have a centur that is divisible 400, you know that January 1 will fall on a Saturday. Saturday, January 1, 2000 is an example.
19th Century dates you must add 2 to the significant value.
18th Century dates you must add 3 to the significant value.
17th Century dates you must add 4 to the significant value.
The formula works for any century that's reckoned by the Gregorian calendar. The first year the formula works under this formula is 1582. Add 5 for those few years in the 16th Century.
21st Century dates you must subtract 1 from the significant value
22nd Century dates you must subtract 2 from the significant value