My 15 yr old daughter just got hired at sonic....she works from 4 to 7 during school week and no more than 8 a day on weekends. By law...not allowed to work past those times. The law also says you can work up to I think...28 - 30 hours a week..but that also depends on the boss, or company policy. Sonic don't even allow that many hours..Hope I was of some help to you...you can also google the laws for under 16 worker...let me know how this works for you...