The time zone of the notification’s fire date.
- iOS 4.0–10.0Deprecated
- Mac Catalyst 13.0–13.0Deprecated
- watchOS 2.0–3.0Deprecated
The date specified in
fire is interpreted according to the value of this property. If you specify
nil (the default), the fire date is interpreted as an absolute GMT time, which is suitable for cases such as countdown timers. If you assign a valid
NSTime object to this property, the fire date is interpreted as a wall-clock time that is automatically adjusted when there are changes in time zones; an example suitable for this case is an an alarm clock.