An integer indicating the first day of the week for the locale. Can be either 1 (Monday), 6 (Saturday) or 7 (Sunday).
An integer between 1 and 7 indicating the minimal days required in the first week of a month or year, for calendar purposes.
An array of integers indicating the weekend days for the locale, where 1 is Monday and 7 is Sunday.
An object representing week information associated with the Locale data specified in UTS 35's Week Elements