How to find difference between 2 time strings in HHMMSSmmmuuu format in C#

Question

I have two time strings in HH:MM:SS:mmm:uuu format. How to find the difference (time span) between them?

string t1="06:37:30:210:111";
string t2="06:38:32:310:222";

I want to find the difference (in terms of time) between t2 and t1 (t2-t1).

How to do this?

Did you actually try to solve the problem? Do you have a specific question about your code? — Artless, Aug 08 '13 at 10:31
See http://stackoverflow.com/questions/12521366/getting-time-span-between-two-times-in-c — Halvard, Aug 08 '13 at 10:33

score 2 · Answer 1 · answered Aug 08 '13 at 10:43

Try this:

class Program
{
    static void Main(string[] args)
    {
        string t1 = "06:37:30:210:111";
        string t2 = "06:38:32:310:222";

        var tp1 = TimeSpan.ParseExact(
            t1.Remove(t1.LastIndexOf(":")),
            @"hh\:mm\:ss\:FFFFFF",
            CultureInfo.InvariantCulture);

        var tp2 = TimeSpan.ParseExact(
            t2.Remove(t2.LastIndexOf(":")),
            @"hh\:mm\:ss\:FFFFFF",
            CultureInfo.InvariantCulture);

        Console.WriteLine(tp2 - tp1);
    }
}

+1: This example actually works for the specific data in the question so gets my vote. — iCollect.it Ltd, Aug 08 '13 at 10:53

score 1 · Answer 2 · edited Aug 08 '13 at 10:38

1

You should convert your strings to DateTime and use TimeSpan to calculate the difference

DateTime d1 = DateTime.Parse(t1);
DateTime d2 = DateTime.Parse(t2);
TimeSpan ts = d2.Subtract(d1);

edited Aug 08 '13 at 10:38

Sayse

42,633
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answered Aug 08 '13 at 10:35

Miller

1,096
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No need for Subtract() call. `d2-d1` would suffice and is more readable as the '-' operator results in a TimeSpan as well (it uses Subtract behind the scenes) – iCollect.it Ltd Aug 08 '13 at 10:38
1

Are you sure `"06:37:30:210:111"` will be recognized as datetime? – Sergey Berezovskiy Aug 08 '13 at 10:39
I tried this. But i am getting this error : **String was not recognized as a valid DateTime.** – Anoop Aug 08 '13 at 11:38

How to find difference between 2 time strings in HHMMSSmmmuuu format in C#

2 Answers2