507.04 UNLAWFUL CONDUCT OF ESTABLISHMENT OWNER OR OPERATOR.
    No operator of an establishment or his agent or employee shall knowingly permit any juvenile to remain upon the premises of the establishment between 10:30 p.m. and 6:00 a.m. of the following day, official City time, except that on Friday and Saturday nights, the hours shall be from 12:00 midnight to 6:00 a.m.