What Is Workweek? (2026)

Key numbers at a glance

What Workweek means

The employer defines the workweek: it may begin on any day and at any hour — Sunday midnight and Monday 6 a.m. are both common — and different departments or even different employees may have different workweeks. Two rules keep the definition honest. It must be fixed and recurring, not redrawn at will; and once established it cannot be shifted temporarily to dodge overtime in a heavy week, per Wage and Hour Division guidance. A workweek also runs whether or not you are scheduled — the 168 hours exist, and your hours inside them are what count.

The distinction that costs people money is workweek versus pay period. A biweekly paycheck covers 14 days and two separate workweeks; overtime is judged one workweek at a time, never on the two-week total. A server working 46 hours in week one and 34 in week two fits an 80-hour pay period perfectly — and is still owed 6 overtime hours for week one. The same single-workweek logic governs the tip credit: cash wage plus retained tips is compared against the full minimum for each workweek, with no averaging across weeks, which is what makes the top-up a weekly event rather than a monthly debate.

Two adjacent concepts complete the picture. The regular rate is what those overtime hours are paid at — under a tip credit, based on the full minimum, $5.76 an hour federally. And side work limits are also measured as a share of the workweek under federal benchmarks — roughly 20 percent for directly supporting work — which makes the humble workweek the yardstick for nearly every tipped-pay rule there is.

How Workweek affects your numbers

Watch the boundary do the work in one biweekly paycheck. Week one: 46 hours, six of them overtime. Week two: 34 hours, none. Pay period total: 80 hours — which, computed on the pay period, would owe zero overtime. Computed correctly, on the workweek, it owes 6 × $5.76 = $34.56 in additional cash wages federally, plus tips, before the check is even printed. Same hours, same paycheck, $34.56 apart — entirely a matter of which container the math ran in.

All four rows total 80 hours for the pay period; only the first row owes no overtime. That is the entire game: employers who pay on the pay period, or who quietly restart the workweek mid-schedule during a busy stretch, are not optimizing — they are shorting the overtime line.

Common mistakes. Computing overtime per pay period instead of per workweek, the big one. Letting the schedule's Sunday-to-Saturday shape stand in for the actual, defined workweek — ask your manager which day the house week closes; it is on the books. Checking the tip credit monthly, or "carrying" a slow week's shortfall into a strong one, which the no-averaging rule forbids. And resetting the workweek right before a festival or holiday week — the change that looks most like evasion is the one regulators scrutinize first.

When does the workweek matter most? Any week you cross 40 hours — doubles, holiday pushes, short-staffed summers — and every slow week when the top-up question turns on where the week begins and ends. Anchor your records to it: hours and kept tips logged by workweek, not by pay date. The server paycheck calculator and the overtime calculator both compute on workweeks, the way the law does; the TippedPay home page maps the full toolkit.