How to get the time difference between two DateTime objects?

Question

 emp = moduleEmployee.ReturnEmployeeDAO().FetchEmployeeByID(emp);

 DateTime shiftStartTime = emp.Shift.StartTime;
 DateTime shiftEndTime = emp.Shift.EndTime;

 DateTime attTime = att.Time;

According to the above code my shiftStartTime is 11.00 PM and shiftEndTime is 7.00 AM. and attTime or signIntime is 1.00 AM. then how to calculate the difference between shiftStartTime and attTime. where the difference should be 2 hour.

please help.....

Thanks Rusho

Answer 1

If you subtract two DateTime objects, you get a TimeSpan.

A TimeSpan then has properties for TotalMilliseconds, TotalSeconds, etc.

You want the TimeSpan.TotalHours

 int shiftHours = (attTime - shiftStartTime).TotalHours;