timestamp static method
Implementation
static String timestamp(DateTime time) {
final hh = time.hour.toString().padLeft(2, '0');
final mm = time.minute.toString().padLeft(2, '0');
final ss = time.second.toString().padLeft(2, '0');
final ms = time.millisecond.toString().padLeft(3, '0');
return '$hh:$mm:$ss.$ms';
}