Q. "What is a workweek? Is it just hours of operation?"
Answer:
A workweek is not the same thing as hours of operation. Rather, it defines the 168-hour period (i.e., seven 24-hour days) in which you track your non-exempt employees’ time to determine whether they’re owed any overtime.
The workweek can start and end whenever you would like (i.e., Saturday at midnight), but it should rarely change, if ever. Changing it to avoid paying overtime violates the Fair Labor Standards Act.
Employees should know what the workweek is. We recommend posting it in a place they’ll see, like a wall in the office kitchen or in your Staff Handbook.