Type PropertyFoundationEssentials
knownTimeZoneIdentifiers
iOS 8.0+
iPadOS 8.0+
Mac Catalyst 8.0+
macOS 10.10+
tvOS 9.0+
watchOS 2.0+
Returns an array of strings listing the identifier of all the time zones known to the system.
static var knownTimeZoneIdentifiers: [String] { get }