A trigger condition that causes a notification to be delivered after the specified amount of time elapses.
- iOS 10.0+
- macOS 10.14+
- tvOS 10.0+
- watchOS 3.0+
UNTime object when you want to schedule the delivery of a local notification after the specified number of seconds elapse. You use this type of trigger to implement timers.
Listing 1 creates a trigger that delivers its notification one time after thirty minutes have elapsed.