如何在C＃中找到两个DateTime之间的正差异

Question

I've two DateTime variable regardless of which is greater than the other in time.

Datetime date1, date2;

How should I find the positive difference of both on "days" basis?

(date1-date2) might give positive/negative result but I also need the no: of days difference.

Assume both are on the same TimeZone

Answer 1

double days = Math.Abs((date1-date2).TotalDays);

Answer 2

If you want an (unsigned) integer value:

Math.Abs(date1.Subtract(date2).Days)

If you want an (unsigned) double value:

Math.Abs(date1.Subtract(date2).TotalDays)

Answer 3

Just use the Days property on the timespan (which is the resulting type from date1 - date2 ). It returns a signed int.

Answer 4

You could try:

Math.Abs((dateA - dateB).Days);

or if you want the result to be fractional:

Math.Abs((dateA - dateB).TotalDays);