Instance Property
firstDayOfWeek
iOS 16.0+
iPadOS 16.0+
Mac Catalyst 16.0+
macOS 13.0+
tvOS 16.0+
watchOS 9.0+
Set this to override the first day of the week. To request the default first day of the week preferred by the locale, use
Locale.firstDayOfWeekDiscussion
Corresponds to the “fw” key of the Unicode BCP 47 extension The preferred first day of the week that should be shown in a calendar view. Not necessarily the same as the first day after the weekend, and should not be determined from the weekend information