How can I String.Format a TimeSpan object with a custom format in .NET?

Question

What is the recommended way of formatting TimeSpan objects into a string with a custom format?

Answer 1

Dim duration As New TimeSpan(1, 12, 23, 62)

DEBUG.WriteLine("Time of Travel: " + duration.ToString("dd\.hh\:mm\:ss"))

It works for Framework 4

http://msdn.microsoft.com/en-us/library/ee372287.aspx