hello Bhetrand Dwilangga,
You can used Formatdatetime(value, format you want to store) function for this
Edit: This will give text output. If your attribute is not text then it will be failed
OutSystems will give date (dd/mm/yyyy) and datetime(dd/mm/yyyy HH:MM:SS)
if your are storing in text its possible but if your date type is fixed(date or datetime) it won't
thanks and Regards,
akshay Deshpande