How to convert HH:MM:SS string to datetime?

Question

i am having an input string of HH:MM:SS for example 15:43:13,

now i want to convert it to datetime but keep just the hour/time without the date etc

is it possible?

for example

string userInput = 15:43:13;
DateTime userInputTime = Convert.ToDateTime(userInput);

will give me the full date including the year etc, is there any way to convert it to just HH:MM:SS without triming/substring?

thanks

Answer 1

As others have said, it's a TimeSpan.

You can get a datetime by doing this

string userInput = "15:43:13";
var time = TimeSpan.Parse(userInput);
var dateTime = DateTime.Today.Add(time);

Answer 2

To just get a time span, you can use:

TimeSpan.Parse("15:43:13")

But you should ask yourself why you want to do this as there are some fairly significant gotchas. For example, which 2:33 AM do you want when it's Sunday, November 3, 2013, and daylight savings time is ending? There are two of them.