You must pay for all work, even if it’s not authorized

Q. In the October 1999 issue, you explained that nonexempt employees who work more than 40 hours in a week are entitled to overtime for all hours over 40, regardless of whether the overtime was authorized. Do we owe overtime if a nonexempt employee works more than his or her scheduled hours even if the total number of hours worked does not exceed 40? —J.P., Illinois