A regular municipal election shall be held on the first Tuesday in April, 1982, and biennially thereafter. Any special municipal election may be called by resolution or ordinance of the council at least thirty two (32) days in advance of such election. The resolution or ordinance calling a special municipal election shall set forth the purpose or purposes of such election. Polling places for all municipal elections shall be open from 7 A.M. to 7 P.M. on election day.