No person, proprietor, operator, employee thereof, or person in charge shall allow any minor under 18 years of age to play or use any such game on school days between the hours of 7:00 a.m. and 3:00 p.m., nor between the hours of 10:00 p.m. and 7:00 a.m., except that on Fridays and public school days before holidays or any other days that all schools will not be in session, time shall be from midnight to 7:00 a.m. (Formerly 3.20.030)