Overtime is hours worked in excess of normal working hours. The concept is typically used in regard to the overtime premium associated with these excess working hours, which is usually set at 1.5x the normal hourly pay rate. Normal working hours are defined based on federal, state, or local rules but are typically eight hours per day for a five day work week, or as 40 hours worked over the course of a week. Working hours may also be defined within a union contract. The basic provisions of overtime pay at the federal level are stated in the Fair Labor Standards Act.