Illinois Statutes Chapter 820. Employment § 206/25. Allowable work hours

(1) more than 18 hours during a week when school is in session;

(2) more than 40 hours during a week when school is not in session;

(3) more than 8 hours in any single 24-hour period;

(4) between 7 p.m. and 7 a.m. from Labor Day until June 1 or between 9 p.m. and 7 a.m. from June 1 until Labor Day; or

(5) more than 3 hours per day or more than 8 hours total of work and school hours on days when school is in session.