Type Property
timeIntervalBetween1970AndReferenceDate
iOS 8.0+
iPadOS 8.0+
Mac Catalyst 8.0+
macOS 10.10+
tvOS 9.0+
watchOS 2.0+
The number of seconds from 1 January 1970 to the reference date, 1 January 2001.
static let timeIntervalBetween1970AndReferenceDate: TimeInterval