How A Workweek Is Defined, And Why It Decides Overtime

Overtime obligations under the general framework are calculated within a defined workweek. The definition of that week is a technical choice that determines when premium pay is owed.

The workweek is a fixed recurring period

A workweek is a fixed and regularly recurring period of seven consecutive days. It can begin on any day and at any hour, chosen by the employer.

Once established, it is meant to stay fixed rather than move to suit scheduling. Changing it is permitted but is not supposed to be a device for avoiding premium pay.

Different employees or facilities can be assigned different workweeks, which is why colleagues can have different overtime outcomes from identical schedules.

Hours cannot be averaged across weeks

Overtime is assessed week by week, so a heavy week followed by a light one still generates overtime for the heavy week. The light week does not offset it.

This surprises people paid every two weeks, who reasonably assume the pay period is the unit of measurement. The pay period and the workweek are separate concepts.

Where a pay period contains two workweeks, each is evaluated on its own. The payslip shows one total while the calculation used two.

The boundary decides which week a shift belongs to

A shift crossing the workweek boundary is generally attributed based on when the hours were actually worked rather than when the shift started.

For overnight and rotating schedules, the placement of the boundary therefore changes the distribution of hours between weeks. Two identical rosters with different boundaries produce different overtime.

This is a legitimate reason for an employer to choose a particular start point, and also a reason for employees to know what it is.

Daily hours generally do not trigger the federal rule

The general framework is concerned with weekly totals rather than with long individual days. A very long shift within a short week may generate no overtime at all.

Several states impose daily overtime requirements in addition, and where they do, the more protective rule applies. This is one of the larger sources of state variation.

Certain industries and public sector arrangements operate under alternative periods entirely, which are defined narrowly and do not apply generally.

Paid time that is not worked time

Overtime is calculated on hours actually worked, so paid leave, holidays and sick time usually do not count toward the threshold even though they are paid.

An employee paid for a full week that included a holiday may therefore work additional hours without reaching the overtime point. The pay total and the worked total differ.

Employer policies can be more generous than the legal minimum and some are. Where a policy counts paid leave toward overtime, that policy governs rather than the floor.