How to parse string with hours greater than 24 to TimeSpan?

Question

How to parse string like 30:15 to TimeSpan in C#? 30:15 means 30 hours and 15 minutes.

string span = "30:15";
TimeSpan ts = TimeSpan.FromHours(Convert.ToDouble(span.Split(':')[0])).Add(TimeSpan.FromMinutes(Convert.ToDouble((span.Split(':')[1]))));

This does not seem too elegant.

Answer 1

See this question (duplicate).

Answer 2

If you're certain that the format will always be "HH:mm" then try something like this:

string span = "35:15";
TimeSpan ts = new TimeSpan(int.Parse(span.Split(':')[0]),    // hours
                           int.Parse(span.Split(':')[1]),    // minutes
                           0));                              // seconds

Answer 3

Normally one would use TimeSpan.ParseExact where a specific format is required. But the only hours formats that can be specified are as parts of days (see Custom TimeSpan Format Strings).

Therefore you will need to do the work yourself:

string input = "30:24";
var parts = input.Split(':');
var hours = Int32.Parse(parts[0]);
var minutes = Int32.Parse(parts[1]);
var result = new TimeSpan(hours, minutes, 0);

(But with some error checking.)

The three integer constructor of timespan allows hours >= 24 overflowing into the days count.

Answer 4

Similar to Luke's one, but handles amount of hours higher than 99:

   String span = "123:45";
   Int32 colon = span.IndexOf(':');
   TimeSpan timeSpan = new TimeSpan(Int32.Parse(span.Substring(0, colon - 1)),
                                    Int32.Parse(span.Substring(colon)), 0);

Obviously it assumes the orignal string is well-formed (composed of two parts separated by colon and parsable to an integer number).