Case
JSONEncoder.DateEncodingStrategy.millisecondsSince1970
iOS 8.0+
iPadOS 8.0+
Mac Catalyst 8.0+
macOS 10.10+
tvOS 9.0+
watchOS 2.0+
The strategy that encodes dates in terms of milliseconds since midnight UTC on January 1, 1970.
case millisecondsSince1970