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Question by BugFighter · Dec 07, 2016 at 08:15 PM · c#stringtimer countdownformattimespan

System.DateTime truncate Milliseconds

I've been trying to make a timer that displays hours, minutes and seconds. I have been using this:

 string.Format("{0:HH:mm:ss}", startTime - System.DateTime.Now);

This should only display what I want but it also displays milliseconds. Does anybody know why?

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avatar image TBruce · Dec 07, 2016 at 09:16 PM 1
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There are many ways to achieve this, but first you need to do

 System.DateTime.Now - startTime

ins$$anonymous$$d

 startTime - System.DateTime.Now

But you can easily solve your problem by doing this

 TimeSpan elapsedTime = DateTime.Now - startTime;
 text.text = string.Format("Time : {0:D2}:{1:D2}:{2:D2}", elapsedTime.Hours, elapsedTime.$$anonymous$$inutes, elapsedTime.Seconds);

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Answer by RobAnthem · Dec 08, 2016 at 06:47 AM

That's really weird since you aren't referencing the t value, but DateTime doesn't need formatting, you can declare the format as a basic .ToString("format here") .Net has a huge documentation about DateTime formatting.

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