CODEWITHSUNDEEP
vb.netvisual-studiovisual-studio-2010
Nefariis
Nefariis

Reputation: 3549

Time Duration in VB.NET

Trying to figure out time formatting is absolutely killing me.

When I press a button I collect a start time using:

StartTime = DateTime.Now.ToString("hh.mm.ss.tt")

Then when the calculation is done I have:

EndTime = DateTime.Now.ToString("hh.mm.ss.tt")

What I would like to do is to:

TotalTime = EndTime - StartTime

But to print the time using the format; "?# Hours, ## Minutes, & ## Seconds"

Upvotes: 2

Views: 10665

Answers (4)

Cœur
Cœur

Reputation: 38757

Solution by OP.

LarsTech answer got me thinking about a better solution. I completely forgot that I had datetime.now.tostring. What I ended up going is:

timenow = DateTime.Now
start = DateTime.Now

Dim totaltime As TimeSpan = (timenow - start)
xlWorkSheet201.Cells(3, 9) = "Total Test Time: " & Format(totaltime.Hours, "#0") & " Hours, " & Format(totaltime.Minutes, "#0") & "Minutes, & " & Format(totaltime.Seconds, "00") & "Seconds."

Upvotes: 0

Dan Tao
Dan Tao

Reputation: 128447

Dim TotalTime As TimeSpan = EndTime - StartTime
Console.WriteLine( _
    "{0:#0} Hours, {1:00} Minutes, & {2:00} Seconds", _
    Math.Truncate(TotalTime.TotalHours), _
    TotalTime.Minutes, _
    TotalTime.Seconds _
)

Upvotes: 1

LarsTech
LarsTech

Reputation: 81675

I probably wouldn't use the ToString() function on the StartTime and EndTime variables, since that turns them into strings.

Try this:

Dim StartTime as DateTime = DateTime.Now

'' Do Stuff

Dim EndTime As DateTime = DateTime.Now

Dim TotalTime As TimeSpan = EndTime - StartTime

Me.Text = TotalTime.ToString("hh':'mm':'ss")

Of course, you can skip the TotalTime variable and just calculate it in place:

Me.Text = (EndTime - StartTime).ToString("hh':'mm':'ss")

Upvotes: 7

fury
fury

Reputation: 607

If you want to calculate durations, you must not use the string type. Use directly the DateTime variables (that is, DateTime.Now). You should get a TimeSpan object when subtracting.

Upvotes: 1

Related Questions