Permissible work hours for 14- and 15-year-olds are: 3 hours on a school day; 18 hours in a school week; 8 hours on a non-school day; 40 hours in a non-school week; and; between 7 a.m. and 7 p.m., except from June 1 through Labor Day, when nighttime work hours are extended to 9 p.m. Child labor laws vary from state from state. Please consult your state department of labor for this information. DOL Web Pages on This Topic