90.38—Opening and closing of poll.
The poll shall remain open without intermission from 8 a.m. to 8 p.m. on the date of the election. When all else is in readiness for the opening of the poll the supervisor shall open the ballot box in view of the other election officers, shall turn same top down to show that no ballots are contained therein, and shall then lock the box and retain the key in his possession.