If you know the year, how can you figure out what the first day is?

[AgaBoogaBoo]

How can you find out what day the first day of a year is with only the year? 2007 for example, started on a Monday.

Is there a simple relationship between this? Maybe add up number of days in a year, divide by 7, and that's how many days it moves over by except on leap years?

 

[AbsolutDealage]

Ask this guy.

 

[BigToque]

Not that this will help you, but I had to do this as my first Java assignment in computer science at university.

 

[BD2003]

I guarantee you that it's January 1st.

 

[moshquerade]

look up Rain Man

 

[xtknight]

Something like this (C):

dow(m,d,y){y-=m<3;return(y+y/4-y/100+y/400+"-bed=pen+mad."[m]+d)%7;}
printf("day of week: %d\n", dow(1,1,yyyy));

( http://www.faqs.org/faqs/sci-math-faq/dayWeek/ )

 

[AbsolutDealage]

Oh, and for the record, here is a serious reply:

http://www.savantcalendarcalculator.com/get_ready.htm

 

[jfall]

look at the windows calendar?

 

[Spacehead]

This help?

 

[AgaBoogaBoo]

Originally posted by: AbsolutDealage
Oh, and for the record, here is a serious reply:

http://www.savantcalendarcalculator.com/get_ready.htm

9 is equal to 7 + 2. After "dropping the sevens" from 9, you have 2.

There we go, I've got the basic idea now