DAYSTR Usage TIBCO iProcess Workspace (Browser) TIBCO iProcess Workspace (Windows) Returns the day name of a specified date. Syntax daystr (date) where date is the date the operation is to be performed on. Returns A text string representing the day name of the date. Examples TIBCO iProcess Modeler: DAYSTR (!08/10/2001!) returns "Monday". TIBCO Business Studio: IPEDateTimeUtil.DAYSTR("08/10/2001");