how to calculate number of weeks given 2 dates?

Question

I have two DateTime variables and i need to compute number of weeks between them.

What is the quickest (and correct) way to do this?

Answer 1

You could try the following:

DateTime d1 = new DateTime(2006,10,1);
DateTime d2 = new DateTime(2007,10,15);

TimeSpan tt = d2 - d1;
int totalWeeks = tt.Days/7;

And if you want exact difference in fraction also then instead of:

int totalWeeks = tt.Days/7;

use:

double totalWeeks = tt.TotalDays/7;