The daterangeinput uses Intl.DateTimeFormat for dates formatting. More details on: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat. The dateFormat property of the DateRangeInput can be set to an object like {day: “number”, month: “number”, year: “number”}. For available list of properties, please check the tutorial from the link which was provided here.