The county clerk or statutorily appointed supervisor of the election shall determine the hours between 8:00 a.m. and 5:00 p.m. during which the absent voter precinct polling place shall be open for delivery and registering of absentee ballots on the five days preceding election day and the hours during which the absent voter precinct polling place shall be open for the delivery, registering and counting of ballots on election day and subsequent days until all ballots are counted; provided that the absent voter precinct polling place opens at 7:00 a.m. on election day.