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Find Day for any Date!Month code:-
Jan:- 2 for non-leap year & 1 for leap year.
Feb:- 5 for non-leap year & 4 for leap year.
Mar:-5
Apr:-1
May:-3
Jun:-6
Jul:-1
Aug:-4
Sep:-0
Oct:-2
Nov:-5
Dec:-0
Remember these month codes.
Now start with trick :-
Step1:- Take last 2 digit of year number. e.g. If year is 1827, then take 27.
Step2:- Multiply these 2 digit number with 1.25. Or add 1/4 of this number to itself.
Take only integer of answer. e.g. 27*1.25 = 33.75. Then take only 33 as ans.
Step3:- Find out & add month code from above chart to ste2's answer.
Step4:- Add date to Step3's answer.
Step5:- Take first 2 digits of year number. Add this to Step4's answer.
Step6:- Divide Step5's answer by 7. Final answer is remainder of this operation.
0-Sunday,1-Monday,2-Tuesday,3-Wednesday,4-Thursday,5-Friday,6-Sat
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Examples :-
Date :- 21-01-1985
Step1:- 85
Step2:- 85+21.25 = 106.25 So take 106.
Step3:- 106+2=108
Step4:- 108+21=129
Step5:- 129+19 = 148
Step6:- 148/7 .... Remainder is 1.
So Day is Monday!!!
Likewise:-
15-08-1947
Step1:- 47
Step2:- 47+11 = 58
Step3:- 58+4 = 62
Step4:- 62+15=77
Step5:- 77+19 = 96
Step6:- 96%7 = 5
Day is Friday!!!
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