During normal school sessions, minors ages 14 and 15 may work a maximum of three hours per day, up to 18 hours per week. A minor aged 14 or 15 years old can work up to 40 hours a week during Spring, Winter, and Summer Break.Supervision permit may be issued allowing 14 and 15 year old minors to work until p. In South Carolina, the law sets a clear boundary: generally, no employment is authorized for minors under the age of 14. 14-15 year olds may work up to 8 hours per day, 40 hours per week, unless attending summer school. From June 1 - Labor Day may work between 7am and 9pm. How old do I have to be to work at Harris Teeter? Currently Harris Teeter does not hire individuals 15 years of age or younger. How to address projected shortfalls in Social Security and Medicare will become an increasingly important topic during the next decade. Minors ages 14 and 15 may not work: During school hours.