The departure date for the trip.
- iOS 7.0+
- macOS 10.9+
- Mac Catalyst 13.0+
- tvOS 9.0+
Specifying a departure date provides the server with extra information that it can use to optimize the returned routes. For example, for a trip that takes place during commute hours, the server might consider alternatives to routes that are typically congested at that time.
The use of this property is optional.