Under federal law, regular work hours are built around a 40-hour workweek: any hours a non-exempt employee works beyond 40 in a single workweek must be paid at one-and-a-half times the regular rate. There is no federal ceiling on how many hours an adult can work in a day or a week, and no federal minimum gap between shifts. Whether the overtime rule protects you at all depends on how your job is classified, and several states add protections the federal system leaves out.
How the 40-Hour Workweek Works
The Fair Labor Standards Act defines a workweek as any fixed, recurring block of 168 hours, meaning seven consecutive 24-hour days.1U.S. Department of Labor. Wages and the Fair Labor Standards Act The employer picks the start day and time, and that schedule stays fixed. It cannot be shuffled week to week to avoid overtime.2eCFR. 29 CFR 778.105 – Determining the Workweek
Once a non-exempt worker crosses 40 hours in that workweek, every additional hour must be paid at no less than one-and-a-half times the regular rate.3Office of the Law Revision Counsel. 29 USC 207 – Maximum Hours The regular rate is more than base pay; it includes most compensation such as shift differentials and non-discretionary bonuses.
Employers cannot average hours across two workweeks. If you work 50 hours one week and 30 the next, you are owed 10 hours of overtime for the first week, even though the two-week total is 80.
Employers must keep accurate records of hours worked each day and total hours each workweek for every non-exempt employee. Keeping your own log is still worth doing. If a dispute arises later, that personal record can be the difference between recovering back pay and having nothing to show.
No Federal Cap on Daily Hours or Days Per Week
Federal law does not limit how many hours you can work in a single day. The eight-hour day is a workplace tradition, not a legal requirement. An employer can schedule a 12- or 16-hour shift without triggering any federal overtime obligation, as long as the weekly total stays at or below 40.3Office of the Law Revision Counsel. 29 USC 207 – Maximum Hours The FLSA also does not prevent an employer from requiring overtime or extended shifts as a condition of continued employment.
The same is true of rest between shifts. No federal rule requires a gap between the end of one shift and the start of the next. An employer could legally schedule you to close at midnight and reopen at 6 a.m. Federal protections care about whether the hours you work are tracked and paid correctly, not whether the schedule is reasonable.
And there is no federal requirement for employees aged 16 and older to have a day off each week.4U.S. Department of Labor. Fact Sheet 43 – Child Labor Provisions of the Fair Labor Standards Act for Nonagricultural Occupations Workers under 16 face federal restrictions on hours and timing, but those drop away at 16. State laws sometimes fill the gap.
Exempt or Non-Exempt: Who the Overtime Rule Actually Protects
The 40-hour overtime rule only protects non-exempt workers. Whether you qualify as exempt depends on two tests, and both must be met: how much you earn and what your job actually involves. Salary alone does not make someone exempt.
The current minimum salary for the executive, administrative, and professional exemptions is $684 per week, roughly $35,568 per year.5U.S. Department of Labor. Earnings Thresholds for the Executive, Administrative, and Professional Exemption from Minimum Wage and Overtime Protections Under the FLSA Highly compensated employees earning at least $107,432 annually face an easier duties test.
Meeting the salary floor is only the starting point. The job itself must fit one of the recognized exemption categories:6eCFR. 29 CFR Part 541 – Defining and Delimiting the Exemptions for Executive, Administrative, Professional, Computer and Outside Sales Employees
- Executive: your main job is managing the business or a recognized department, and you direct the work of at least two full-time employees.
- Administrative: you perform office or non-manual work related to business operations and regularly exercise independent judgment on significant matters.
- Professional: your work requires advanced knowledge in a specialized field or sustained creative talent in an artistic one.
- Computer employee: you work as a systems analyst, programmer, or software engineer performing design, development, or testing of computer systems.
- Outside sales: you regularly make sales or obtain contracts away from your employer’s place of business.
Job titles alone mean nothing. A “manager” who spends most of the day stocking shelves is not performing exempt work, no matter what the name badge says. Misclassification is one of the most common wage violations, and it almost always hurts the worker, who loses overtime pay they were legally owed.
What Actually Counts as Hours Worked
The 40-hour threshold only matters if you know which hours count toward it. That question is where most real disputes happen.
Waiting and On-Call Time
Federal regulations draw a sharp line between being “engaged to wait” and “waiting to be engaged.” If your employer requires you to stay at the workplace or so close that you cannot use the time for your own purposes, that is compensable time. You are on duty even if you are sitting around.7U.S. Department of Labor. FLSA Hours Worked Advisor – Waiting Time If you carry a pager or phone but are otherwise free to go about your life with only occasional interruptions, that time is generally not compensable. The more restrictions your employer places on what you can do while on call, the more likely the time counts as work.
Training and Meetings
Time spent in training sessions, lectures, or meetings counts as hours worked unless all four of the following are true: attendance is outside your regular hours, it is genuinely voluntary, the content is not directly related to your current job, and you perform no productive work during the session.8eCFR. 29 CFR 785.27 – General If even one fails, the time is paid. In practice, most employer-directed training easily fails the “voluntary” or “directly related” condition.
Meal and Rest Breaks
Federal law does not require employers to offer breaks. But when breaks are provided, the rules for paid versus unpaid time are precise.
Short rest breaks of roughly 5 to 20 minutes are compensable and count toward your weekly hours. Meal periods of 30 minutes or longer can be unpaid, but only if you are completely relieved of all duties. “Completely” is doing heavy lifting there. If you eat at your desk while fielding phone calls or monitoring a system, the entire meal period becomes compensable time, even if you consider it your lunch break. The Department of Labor’s own example is direct: an employee who stays at the desk and regularly answers the phone while eating is working.9U.S. Department of Labor. Fact Sheet 22 – Hours Worked Under the Fair Labor Standards Act This is where employers most often get it wrong. They deduct 30 minutes from the timesheet while still expecting workers to stay available.
Unpaid meal breaks also change how long you spend at work versus how many hours you are paid for. A typical eight-hour shift with a 30-minute unpaid lunch means you are on premises for eight and a half hours but paid for eight. That gap matters when calculating whether you crossed 40 hours for the week.
Where State Law Goes Further
Many states impose protections the federal system leaves out. The biggest difference is daily overtime. While the FLSA looks only at the workweek, some states require overtime pay after eight hours in a single day. Under those rules, a worker who logs 10 hours on Monday earns two hours of overtime that day, even if the rest of the week is light enough that the weekly total never reaches 40. Some states also require double-time pay after 12 hours in a day.10U.S. Department of Labor. Overtime Pay
State laws also diverge from federal rules in several other areas:
- Mandatory meal and rest breaks. While federal law requires none, roughly half the states mandate paid rest breaks, unpaid meal breaks, or both for shifts of a certain length.
- Predictive scheduling. A growing number of cities and states require employers to post schedules days or weeks in advance. When an employer changes your schedule after posting, you may be owed additional “predictability pay” on top of your regular wages for the hours actually worked.11U.S. Department of Labor. Fact Sheet 56B – State and Local Scheduling Law Penalties and the Regular Rate Under the Fair Labor Standards Act
- Reporting-time pay. Several states require employers to pay a minimum number of hours, commonly two to four, when you show up for a scheduled shift but get sent home early.
- Day-of-rest requirements. Some states guarantee at least one day off per seven-day period, filling a gap federal law leaves wide open.
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When federal and state rules overlap, the one more generous to the worker wins. Checking your state’s labor agency website is worth the five minutes.
Jobs With Federal Hour Caps
A few industries operate under federal hour ceilings that override the general “no daily maximum” rule. Commercial truck drivers of property-carrying vehicles are limited to 11 hours of driving within a 14-hour on-duty window, and they cannot begin driving without first taking 10 consecutive hours off duty.12eCFR. 49 CFR Part 395 – Hours of Service of Drivers A 30-minute break is required after eight cumulative hours of driving. Drivers of passenger-carrying vehicles are capped at 10 hours of driving within a 15-hour on-duty window, preceded by 8 consecutive hours off duty.
Similar federal restrictions apply to airline pilots and crew, railroad workers, and nuclear power plant operators. These caps exist because fatigue in certain jobs creates risks beyond the individual worker. If you are not in one of these regulated fields, no federal daily limit applies to you.
What You Are Owed When Overtime Is Missed
An employer that fails to pay required overtime owes the affected workers their unpaid wages plus an equal amount in liquidated damages, effectively double the missing pay.13Office of the Law Revision Counsel. 29 USC 216 – Penalties The Department of Labor can bring this claim on workers’ behalf, or employees can file their own lawsuit. Employers who willfully or repeatedly violate federal overtime or minimum wage requirements also face civil penalties of up to $1,000 per violation, and willful violations can lead to criminal prosecution with fines up to $10,000 and potential imprisonment for a second offense.14U.S. Department of Labor. Fair Labor Standards Act Advisor – Enforcement Under the Fair Labor Standards Act
State penalties often stack on top of the federal ones. In states with daily overtime rules, violations of those daily thresholds carry their own fines and private lawsuit exposure separate from any federal liability. Workers in those states have more leverage when wages go missing.