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

The shortest, most elegant and reliable way to get HH:mm:ss from a Duration is doing:

format(Duration d) => d.toString().split('.').first.padLeft(8, "0");

Example usage:

main() {
  final d1 = Duration(hours: 17, minutes: 3);
  final d2 = Duration(hours: 9, minutes: 2, seconds: 26);
  final d3 = Duration(milliseconds: 0);
  print(format(d1)); // 17:03:00
  print(format(d2)); // 09:02:26
  print(format(d3)); // 00:00:00
}