If you are 18 years old, you may work at any time in any job. Minors 16 and 17 years of age.How many hours can a minor work each week in South Carolina? No Hour Restrictions: Minors aged 16 and 17 are exempt from the strict hour and scheduling restrictions that apply to younger workers. Minors aged 16 and 17 may not work, with certain exceptions, in occupations involving: Manufacturing or storing explosives; 16 and 17: May work the same hours as those who are 18 years old. Employment of minors sixteen and seventeen years of age in these occupations is not permitted. No more than 40 hours in a non-school week. South Carolina labor laws for minors aged 16 and 17. Nightwork restrictions set limits on how late a minor can legally work.