What is the formula for finding out the ‘day of the week’ of a given date / month & year?

Question

Kindly illustrate with example. What was the day on 2nd June 1968?

Answer 1

Here's a set of instructions: http://www.informatik.uni-ulm.de/pm/mitarbeiter/mark/day_of_week.html

I will do your example. From the table, the month value (M) for June is 5. The date value (D) is 2. The century value (C) is 0. Here's the hardest part, and there are two ways you can approach it:
Y = 68 + floor(68/4) = 85
OR
Y = floor(68/12) + 68 mod 12 + floor((68 mod 12)/4) = 5 + 8 + 2 = 15.
Either year value (Y) will work. I will use the second one for the final result, because it is smaller.
day of the week = (C + Y + M + D) mod 7 = (15 + 5 + 2 + 0) mod 7 = 1

1 corresponds to Sunday.

In case you are not familiar with the operations above, here is a description of them:
mod is the operator for modulo division. It is used to find the remainder yielded by the number on the left upon division by the number on the right.
floor is simply discarding the fractional part of the number.

It is possible to do this in your head, if you are so inclined. If you need more explanation, email me. Good luck!

Answer 2

Sorry, I'm no mathemetician, but in the back of my phone book it has a whole page on just this. I just looked it up in mine...2nd of June 1968 is on a "Sunday".

Answer 3

what was the day june 2nd 2006??? I need to verify this first...
example: today is Wed.,Aug 23 2006 add one day to each additional year or subtract one day for each previous year. next year Aug 23rd will fall on a Thursday. Last year Aug. 23rd fell on a Tuesday. Do you get it?

Answer 4

Look on a calendar

It was a Sunday

Answer 5

GOOGLE BIRTHDAY CALENDER
THAT IS HOW I FOUND OUT AND IT WILL TELL YOU WHAT THE WEATHER WAS AND IF IT WAS A FULL MOON OR NOT

Answer 6

google it

Answer 7

look in the calender

Answer 8

..