DayOfWeekReturns a number representing the day of the week that date falls on.date - any calendar dateThe number 1 represents Sunday, 2 represents Monday, 3 represents Tuesday, and so on. For example, you can find out on what day of the week a holiday occurs.Important To avoid errors when using dates, always use four-digit years. For more information about how FileMaker Pro handles two-digit dates, see Conversion of dates with two-digit years.DayOfWeek(“10/6/2010”) returns 4.DayOfWeek(Date(10;7;2010)) returns 5.DayOfWeek(ProjectDue) returns 3 when the date in ProjectDue is 10/5/2010.