Since 1938, federal law has guaranteed most employees in the United States the right to receive overtime pay of at least time-and-a-half for all work over 40 hours in a seven day workweek. The federal Fair Labor Standards Act applies to essentially all employers and to all kinds of jobs. For employees who are entitled to overtime pay, the employer must pay for all hours worked, and cannot require employees to work “off the clock” or to not report overtime hours. Employers cannot require employees to “agree” to waive overtime or to accept payments of less than time-and-a-half.