multipliedBy method
Multiplies this duration by factor and returns a new Duration.
Note: Dart's built-in Duration * int operator only accepts integers.
Use this method for fractional multiplication.
const Duration(hours: 1).multipliedBy(1.5) // Duration(hours: 1, minutes: 30)
Implementation
Duration multipliedBy(double factor) =>
Duration(microseconds: (inMicroseconds * factor).round());