Código :
private function doLabel(item:Date):String { return dateFormatter3.format(item); } //Funcion que coloca el calendario en el idioma seleccionado private function dateChooser_init(dt:DateField):void { dt.dayNames = [resourceManager.getString('language', 'Sun'), resourceManager.getString('language', 'Mon'),resourceManager.getString('language', 'Tue'),resourceManager.getString('language', 'Wed'),resourceManager.getString('language', 'Thu'),resourceManager.getString('language', 'Fri'),resourceManager.getString('language', 'Sat')]; dt.monthNames=[resourceManager.getString('language', 'Jan'),resourceManager.getString('language', 'Feb'),resourceManager.getString('language', 'Mar'),resourceManager.getString('language', 'Apr'),resourceManager.getString('language', 'May'),resourceManager.getString('language', 'Jun'),resourceManager.getString('language', 'Jul'),resourceManager.getString('language', 'Aug'),resourceManager.getString('language', 'Sep'),resourceManager.getString('language', 'Oct'),resourceManager.getString('language', 'Nov'),resourceManager.getString('language', 'Dec')]; } <mx:DateFormatter id="dateFormatter3" formatString="DD/MM/YYYY" /> <mx:DateField x="126" y="10" id="fechaInicio" open="dateChooser_init(fechaInicio)" labelFunction="doLabel"/>