NSIslamicCivilCalendar Identifier for the Islamic civil calendar. Declarationlet NSIslamicCivilCalendar: String See AlsoConstantsNSGregorianCalendarNSBuddhistCalendarNSChineseCalendarNSHebrewCalendarNSIslamicCalendarNSJapaneseCalendarNSRepublicOfChinaCalendarNSPersianCalendarNSIndianCalendarNSISO8601Calendar