#include 
#include 

; Retrieve the long name
Local $sLongDayName = _DateDayOfWeek(@WDAY)

; Retrieve the abbreviated name
Local $sShortDayName = _DateDayOfWeek(@WDAY, $DMW_SHORTNAME)

MsgBox($MB_SYSTEMMODAL, "Day of Week", "Today is: " & $sLongDayName & " (" & $sShortDayName & ")")