Initializer
init(timeIntervalSinceReferenceDate:)
iOS 8.0+
iPadOS 8.0+
Mac Catalyst 8.0+
macOS 10.10+
tvOS 9.0+
watchOS 2.0+
Creates a date value initialized relative to 00:00:00 UTC on 1 January 2001 by a given number of seconds.
init(timeIntervalSinceReferenceDate ti: TimeInterval)