after 3pm to 1am at the council Civic carpark will be $21 ($9 + $12).
The $12 flat fee is normally really annoying when you arrive in town to have an evening meal, better to park on the street, but for your purposes it is good, as long as you are out by 1am..
are you sure? the flat fee applies if you enter the carpark after 6pm
either way its going to be $21 or $24