.net - C# String Format for hours and minutes from decimal

Question

Is there a simple string format that will take a decimal representing hours and fractions of hours and show it as hours and minutes?

For example : 5.5 formatted to display 5 hrs 30 minutes.

I am happy to write the code myself, however would prefer to use existing functionality if it is available

Answer 1

decimal t = 5.5M;
Console.WriteLine(TimeSpan.FromHours((double)t).ToString());

That'll give you "05:30:00" which is pretty close. You could then format that to your desired result:

var ts = TimeSpan.FromHours((double)t);
Console.WriteLine("{0} hrs {1} minutes", ts.Hours, ts.Minutes);

Note that there's a potential for loss of accuracy in the conversion from decimal to double, but I don't think it would be noticeable on the minute scale. Someone with a Skeet-like understanding of the type system might be able to chime in here.