subtracting time

[holisticsam]

I'm having trouble calculating the correct time laps.

start_time = DateTime.Now
(program code)
Dim processing_time As TimeSpan = DateTime.Now - start_time
msgbox(processing_time.Minutes)

start - 3/13/2013 7:49:30 PM
end - 3/13/2013 10:57:10 PM

My result was 7 mins. It seems like my code is not subtracting the hours. How do I correct this?

[jcis]

Try

msgbox(processing_time.TotalMinutes)

..and about the subtraction i would use Subtract() method

Dim MinCount As Double = DateTime.Now.Subtract(start_time).TotalMinutes

[dbasnett]

How about using a Stopwatch

        Dim stpw As New Stopwatch
        stpw.Reset()
        stpw.Restart()
        'code to be timed
        stpw.Stop()
        Debug.WriteLine(stpw.Elapsed.ToString)