Enumerationswift 6.0.1FoundationEssentials
DaylightSavingTimePolicy
enum DaylightSavingTimePolicyenum DaylightSavingTimePolicys20FoundationEssentials8TimeZoneV014DaylightSavingC6PolicyO What are these?7OV0Oimport FoundationEssentialsstruct TimeZoneTimeZone defines the behavior of a time zone. Time zone values represent geopolitical regions. Consequently, these values have names for these regions. Time zone values also represent a temporal offset, either plus or minus, from Greenwich Mean Time (GMT) and an abbreviation (such as PST for Pacific Standard Time).
case formercase latterinit?(abbreviation: String) Returns a time zone identified by a given abbreviation.
init(from decoder: any Decoder) throws init?(identifier: String) Returns a time zone initialized with a given identifier.
init?(secondsFromGMT seconds: Int) Returns a time zone initialized with a specific number of seconds from GMT.
static var abbreviationDictionary: [String : String] { get set }Returns the mapping of abbreviations to time zone identifiers.
static var autoupdatingCurrent: TimeZone { get }The time zone currently used by the system, automatically updating to the user’s current preference.
static let cldrKeywordKey: ICUCLDRKeystatic var current: TimeZone { get }The time zone currently used by the system.
static var `default`: TimeZone! { get set }static var gmt: TimeZone { get }static let legacyKeywordKey: ICULegacyKeystatic func nameForSecondsFromGMT(_ seconds: Int) -> String? static func tryParseGMTName(_ name: String) -> Int? var customMirror: Mirror { get }var debugDescription: String { get }var description: String { get }var identifier: String { get }The geopolitical region identifier that identifies the time zone.
var nextDaylightSavingTimeTransition: Date? { get }Returns the date of the next (after the current instant) daylight saving time transition for the time zone. Depending on the time zone, the value of this property may represent a change of the time zone’s offset from GMT. Returns nil if the time zone does not currently observe daylight saving time.
static func == (lhs: TimeZone, rhs: TimeZone) -> Bool func abbreviation(for date: Date = Date()) -> String? Returns the abbreviation for the time zone at a given date.
func daylightSavingTimeOffset(for date: Date = Date()) -> TimeInterval Returns the daylight saving time offset for a given date.
func encode(to encoder: any Encoder) throws func hash(into hasher: inout Hasher) func isDaylightSavingTime(for date: Date = Date()) -> Bool Returns a Boolean value that indicates whether the receiver uses daylight saving time at a given date.
func localizedName(for style: TimeZone.NameStyle, locale: Locale?) -> String? Returns the name of the receiver localized for a given locale.
func nextDaylightSavingTimeTransition(after date: Date) -> Date? Returns the next daylight saving time transition after a given date.
func secondsFromGMT(for date: Date = Date()) -> Int The current difference in seconds between the time zone and Greenwich Mean Time.
enum NameStyleEnum you use to specify different name style of a time zone.
protocol EquatableA type that can be compared for value equality.
protocol Hashable : EquatableA type that can be hashed into a Hasher to produce an integer hash value.
protocol Sendablestatic func != (lhs: Self, rhs: Self) -> Bool Returns a Boolean value indicating whether two values are not equal.