Instance Property
nextDaylightSavingTimeTransition
iOS 8.0+
iPadOS 8.0+
Mac Catalyst 8.0+
macOS 10.10+
tvOS 9.0+
watchOS 2.0+
The date of the next (after the current instant) daylight saving time transition for the time zone.
var nextDaylightSavingTimeTransition: Date? { get }
Discussion
Depending on the time zone, the value of this property may represent a change of the time zone’s offset from GMT. The value is nil if the time zone does not currently observe daylight saving time.