Parse string in HH.mm format to TimeSpan

Question

I'm using .NET framework v 3.5 and i need to parse a string representing a timespan into TimeSpan object.

The problem is that dot separator is used instead of colon... For example 13.00, or 22.30

So I'm wondering if I have to replace . with : or there is a more clean way to obtain this.

score 50 · Accepted Answer · edited Sep 08 '16 at 07:19

50

Parse out the DateTime and use its TimeOfDay property which is a TimeSpan structure:

string s = "17.34";
var ts = DateTime.ParseExact(s, "HH.mm", CultureInfo.InvariantCulture).TimeOfDay;

edited Sep 08 '16 at 07:19

Appulus

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answered Sep 19 '12 at 11:06

Ivan Golović

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Jon · Answer 2 · 2012-09-19T11:10:30.253

10

Updated answer:

Unfortunately .NET 3 does not allow custom TimeSpan formats to be used, so you are left with doing something manually. I 'd just do the replace as you suggest.

Original answer (applies to .NET 4+ only):

Use TimeSpan.ParseExact, specifying a custom format string:

var timeSpan = TimeSpan.ParseExact("11.35", "mm'.'ss", null);

edited Sep 19 '12 at 11:10

answered Sep 19 '12 at 11:03

Jon

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No `ParseExact` in `3.5` :( ! ! – V4Vendetta Sep 19 '12 at 11:04
@PaoloMoretti: Oops... looking into alternatives. – Jon Sep 19 '12 at 11:05
Wouldn't it be better to escape the `.` using `\.`? – Oded Sep 19 '12 at 11:06
@Oded: It's the same really. Picked this form at random. – Jon Sep 19 '12 at 11:07

Darren · Answer 3 · 2012-09-19T11:12:59.147

4

string YourString = "01.35";

var hours = Int32.Parse(YourString.Split('.')[0]);
var minutes = Int32.Parse(YourString.Split('.')[1]);

var ts = new TimeSpan(hours, minutes, 0);

edited Sep 19 '12 at 11:12

answered Sep 19 '12 at 11:03

Darren

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I like this answer the best! – Mr. B Oct 06 '17 at 06:16

score 2 · Answer 4 · answered Sep 19 '12 at 11:12

2

For .Net 3.5 you may use DateTime.ParseExact and use TimeOfDay property

string timestring = "12.30";
TimeSpan ts = DateTime.ParseExact(
                                  timestring, 
                                  "HH.mm", 
                                  CultureInfo.InvariantCulture
                                  ).TimeOfDay;

answered Sep 19 '12 at 11:12

Habib

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This solution rocks! I found it on my own but it's so simple, now you get all the usual DateTime formatting options that we know and love and can use them for TimeSpan the way we expected the first time. - Note this obviously wont work for Timespans greater than 24 hours... but most of the time I have been using TimeSpan when integrating with external systems that track dates and times separately, so we never go past 23:59:59 :) – Chris Schaller Aug 17 '16 at 00:48

Obaid · Answer 5 · 2018-10-01T16:50:00.693

2

If the TimeSpan format is Twelve Hour time format like this "9:00 AM", then use TimeSpan.ParseExact method with format string "h:mm tt", like this

TimeSpan ts = DateTime.ParseExact("9:00 AM", "h:mm tt", CultureInfo.InvariantCulture).TimeOfDay;

Thanks.

edited Oct 01 '18 at 16:50

answered Oct 01 '18 at 16:11

Obaid

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score 0 · Answer 6 · answered Feb 02 '18 at 11:11

try This(It worked for me) :

DateTime dt = Convert.ToDateTime(txtStartDate.Text).Add(DateTime.ParseExact(ddlStartTime.SelectedValue, "HH.mm", CultureInfo.InvariantCulture).TimeOfDay);

startdate will be a string like 28/02/2018 and ddlstarttime is in HH format like 13.00

Parse string in HH.mm format to TimeSpan

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