Health Care 12-Hour Shifts and Mandatory Overtime: Federal, California, Washington and New York Rules

Three 12-hour shifts a week is a common schedule in hospitals and care facilities. But what happens when you are asked to stay four more hours at the end of one? Is that overtime, can you say no, and does it change if you work in California, Washington or New York? This guide explains what federal law says about health care overtime, 12-hour shifts and mandatory overtime, and how three states handle them, based on official sources.

In this guide:

• 1. What federal law says
• 2. The "8 and 80" option for hospitals and care facilities
• 3. California: 12-hour shifts and double time
• 4. Washington: mandatory overtime is prohibited
• 5. New York: limits on mandatory overtime for nurses
• 6. Side-by-side comparison
• 7. A 12-hour shift example (illustrative)
• 8. Keep a record of your scheduled and actual hours

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What federal law says

The Fair Labor Standards Act (FLSA) is about pay, not about how long you can be required to work. According to the Department of Labor (DOL), there is no limit in the Act on the number of hours employees aged 16 and older may work in any workweek. Federal law therefore does not ban mandatory overtime for nurses or other health care workers. It only says that covered, non-exempt employees must receive overtime pay of at least time and one-half the regular rate for hours over 40 in a workweek.

The regular rate is not just your base hourly wage. DOL Fact Sheet #54 explains that it includes items such as non-discretionary bonuses and shift differentials, and that overtime must be calculated on that higher rate. (The basics are in our guide to shift work and overtime pay in the U.S.)

That means the rules that can limit mandatory overtime, or pay extra for a long day, come from state law, a union contract or employer policy.

The "8 and 80" option for hospitals and care facilities

Section 7(j) of the FLSA lets hospitals and residential care establishments use a different way to count overtime. Instead of a 40-hour workweek, they may use a fixed work period of 14 consecutive days, with overtime for hours over 8 in a workday and over 80 in the 14-day period. This is often called the "8 and 80" system.

Fact Sheet #54 (revised July 2009) lists these conditions:

• The employer and the employee must have a prior agreement or understanding before the work is performed.
• The 14-day period must be fixed and regularly recurring, and changes to it must be permanent and not made to avoid overtime.
• An employer may use the 40-hour system for some employees and 8 and 80 for others, but not both for the same employee.

Because the daily trigger starts after 8 hours, an employee on 12-hour shifts can have overtime hours every shift under this system, while the same shifts might produce none under a 40-hour week (see the example below). If your employer uses 8 and 80, it should be in your agreement or pay policy; ask payroll if you are unsure.

California: 12-hour shifts and double time

California has daily overtime (see our guide to daily overtime and double time), and the Industrial Welfare Commission's Wage Order 5 has special provisions for the health care industry. As published by the Department of Industrial Relations (DIR) and summarized by the Labor Commissioner's Office (DLSE):

• 12-hour alternative workweek (section 3(B)(8)). A health care employer can adopt, through the election procedures in the order, a regular schedule with workdays of more than 10 but not more than 12 hours within a 40-hour workweek, without daily overtime. Hours beyond 12 in a workday are paid at double the regular rate, and hours over 40 in a workweek at 1.5 times. The schedule must be validly adopted, so a verbal "we all work twelves" is not the same thing.
• Limit of 12 hours in 24 (section 3(B)(9)). An employee on a 12-hour shift cannot be required to work more than 12 hours in any 24-hour period unless a Chief Nursing Officer or other authorized executive declares a health care emergency, all reasonable steps to provide staffing have been taken, and the extra hours are necessary.
• 14-day period (section 3(D)). Employers operating a hospital, or an institution primarily caring for the sick, aged or mentally ill who reside on the premises, may use a 14-day work period by prior agreement, with 1.5 times pay over 80 hours.

Without a valid alternative workweek, the general California daily overtime rules apply. The DLSE overtime exceptions page is dated February 2019 and the wage order text used here is the version posted on the DIR website, so confirm the current order for your industry.

Washington: mandatory overtime is prohibited

Washington's RCW 49.28.140 is broader than a nurse-only rule: it covers employees of a health care facility. According to the statute:

• No employee of a health care facility may be required to work overtime, and accepting overtime is strictly voluntary. Refusing it cannot be a basis for discrimination, dismissal, discipline or any other adverse employment decision.
• The prohibition does not apply in four situations: an unforeseeable emergent circumstance; prescheduled on-call time (with limits, for example it cannot replace regularly scheduled shifts when a staffing plan shows they are needed, or address regular changes in patient census); when the employer documents reasonable efforts to obtain staffing (not reasonable if overtime fills vacancies caused by chronic staff shortages); and when an employee must finish a patient care procedure already in progress.
• An employee who accepts overtime and works more than 12 consecutive hours must be offered the option of at least 8 consecutive hours of uninterrupted time off afterward.

The statute does not define "health care facility" on the page consulted, so check the definitions in the same chapter, or ask the Washington State Department of Labor and Industries, if you are not sure your workplace is covered. Washington also has its own meal and rest break rules, covered in our guide to meal and rest breaks by state.

New York: limits on mandatory overtime for nurses

New York Labor Law section 167 applies to nurses (registered professional nurses and licensed practical nurses who provide direct patient care) working for covered health care employers, such as facilities licensed under article 28 of the Public Health Law and certain state and local facilities. The law:

• prohibits a health care employer from requiring a nurse to work more than the nurse's regularly scheduled work hours, except in the situations below; a nurse may still volunteer to work overtime;
• counts pre-scheduled on-call time and patient-status shift reports as part of regularly scheduled hours, and says employers may not use on-call time as a substitute for mandatory overtime;
• allows exceptions for a health care disaster or a declared emergency in the nurse's county or a contiguous county, an employer-determined emergency (an unforeseen event that could not be prudently planned for and does not regularly occur), and an ongoing medical or surgical procedure in which the nurse is actively engaged;
• requires the employer to make a good-faith effort to cover the shift voluntarily first, for example by calling per diem or agency nurses.

The text read for this article contains no fixed cap on hours per shift. Civil penalties for violations range up to $1,000 for a first violation, and a nurse who was required to work in violation can file a complaint with the New York State Department of Labor.

Side-by-side comparison

Summary of the provisions described above; exceptions apply. Not every employer or job is covered, and union contracts can add rules.

A 12-hour shift example (illustrative)

These numbers are an illustration only, not a pay calculation for any real job. Assume a non-exempt employee paid $40 an hour, working six 12-hour shifts in 14 days (72 hours), with no bonuses or differentials.

• 40-hour workweek system: 36 hours each week, so no federal overtime. Pay: 72 x $40 = $2,880.
• 8 and 80 system: 4 hours over 8 in each of the six shifts = 24 overtime hours at $60 (1.5 x $40), plus 48 regular hours at $40. Pay: $1,920 + $1,440 = $3,360.

The difference comes from which system the employer uses, which must be agreed in advance. In California, a valid 12-hour alternative workweek would instead pay double time only after 12 hours in a day, and a different set of rules could apply in your state or contract. Always check your own agreement.

Keep a record of your scheduled and actual hours

When rules depend on regularly scheduled hours, 12-hour limits or time off after a long shift, it helps to be able to show what you were scheduled for and what you actually worked. Note when you were asked to stay, who asked, and when you finally left.

Shift2Cal can help you keep your schedule in one place. Take a photo or upload a screenshot, PDF or CSV of your roster; the AI reads the shifts, you check and fix them in a preview, and they sync with Apple Calendar, Google Calendar or Outlook. If you rotate on a repeating pattern, save it as a recurring pattern, and when a shift is extended you can update it. Shift2Cal does not calculate pay or check whether a law was followed, but a clear record of your shifts gives you something concrete to bring to payroll, your union representative or an agency. Processing happens on your device, so your documents stay with you.

Related: Shift Work and Overtime Pay in the U.S., Daily Overtime and Double Time and Meal and Rest Break Laws by State.

Related: Night Shifts, Long Hours and Fatigue: What OSHA and NIOSH Say.

Sources, read on October 30, 2026:

• U.S. Department of Labor, Wage and Hour Division, Fact Sheet #54: The Health Care Industry and Calculating Overtime Pay (revised July 2009), and Fact Sheet #23: Overtime Pay Requirements of the FLSA (revised October 2019).
• California Department of Industrial Relations, IWC Wage Order 5, sections 2(I), 3(B)(8), 3(B)(9) and 3(D), and DLSE, Exceptions to the general overtime law (February 2019).
• Washington State Legislature, RCW 49.28.140.
• New York State Senate, Labor Law section 167 (revision of 2023-06-30).

This article is general information, not legal advice. Overtime and staffing rules depend on your state, employer type, job, whether you are exempt, and any union contract, and laws and agency guidance change. For a specific situation, contact your state labor agency, the U.S. Department of Labor's Wage and Hour Division at 1-866-487-9243 (1-866-4USWAGE), a union representative or an employment attorney.