Below function in Siebel eScipt will return the Day from the date. Input: CurrentDate: 08/10/2021 (MM/DD/YYYY) Result: Tuesday var dayName, CurrentDate; dayName = GetWeekDay(CurrentDate); -- -- GetWeekDay -- -- function GetWeekDay(currentDate) { var weekDay, sDate, theYear, sDay = "", i = 0; weekDay = new Array("Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"); sDate = new Date(currentDate); theYear = sDate.getFullYear() while (i < sDate.getDay()) { i++; sDay = weekDay[i]; } return(sDay); }