By default, the FirstWeekDay property is Sunday. The FirstWeekDay property specifies the first day of the week. The DisplayWeekNumberAs property specifies the way the control displays the week number. Use the ShowWeeks property to display the week numbers. The LocFirstWeekDay property indicates the first day of the week, using the current user regional and language settings. Use the WeekDays property to define the shortcut for each week day. Use the MonthNames to define the name for each month.