Formatting a Duration like HH:mm:ss

Question

Is there a good way to format a Duration in something like hh:mm:ss, without having to deal with time zones?

I tried this:

DateTime durationDate = Da         


        

Answer 1

Define this:

extension on Duration {
  String format() => '$this'.split('.')[0].padLeft(8, '0');
}

Usage:

String time = Duration(seconds: 3661).format(); // 01:01:01