12-hour shift schedule examples for nurses

• A 2-2-3 rotation uses 7 twelve-hour shifts in 14 days, or 84 hours, which averages 42 hours per week.
• A fixed 3-shift-per-week schedule totals 36 hours, while a fourth shift creates a 48-hour week under a 40-hour workweek.
• Under the FLSA 8/80 option, a 12-hour shift creates 4 hours of daily overtime because the daily threshold is 8 hours.Source: U.S. Code, 29 U.S.C. § 207(j)
• CMS says a full 12-hour shift paid as 12 hours is reported as 11.5 PBJ hours after the required 30-minute meal-break deduction.Source: CMS PBJ Policy Manual

Start with what the schedule must protect. Fixed 3 x 12 provides stability and 36 hours each week. A 2-2-3 rotation covers a 24/7 post with four crews, but averages 42 hours. That extra two hours is built into the math.

In a nursing home, the schedule also becomes a reporting input. Paid work and PBJ details must agree with payroll.

These patterns solve different problems. Do not choose one because its name is familiar.

Start with fixed 3 x 12 or 2-2-3. The first is easier to keep at 36 hours. The second is stronger when four crews must cover a continuously staffed post. Treat DuPont as a pattern to examine, not a default.

The names Panama and Pitman are used inconsistently. The useful part is the 14-day skeleton: work 2, off 2, work 3, off 2, work 2, off 3.

Four crews cover one day post and one night post. The second crew on each shift is offset by 7 days. In the rotating version, day and night assignments swap after 14 days, producing a 28-day cycle. That spreads both shifts across the crew, but two days off is not much time to reset sleep.

The off weekend is a three-day block. The cost is the 42-hour average. A workweek boundary can change overtime, so review it with counsel. Federal regulations allow a fixed workweek to begin on any day and at any hour, but a change cannot be designed to evade overtime rules.

These three come up constantly and none of them is a variant of 2-2-3. Each solves a different problem, and each has an arithmetic cost you should see before it reaches payroll.

3 x 12 with a split weekend

A fixed three-shift week where the nurse works one weekend day and is off the other, every week, instead of alternating whole weekends on and off.

The arithmetic is 3 shifts of 12 hours, so 36 hours each week and no designed-in overtime under a 40-hour workweek. The weekend benefit is coverage: every nurse contributes one weekend day per week, so a Saturday or Sunday post draws on the whole crew instead of on whichever half is scheduled that weekend. The cost is that nobody ever gets two consecutive weekend days off. Teams that value a real weekend usually prefer alternating full weekends and accept the harder Saturday.

DDNN rotation

Two 12-hour days, two 12-hour nights, then four off, on an 8-day cycle.

Four 12-hour shifts in 8 days is 48 hours per cycle, which averages 42 hours per week — the same average as 2-2-3, 4-on/4-off, and DuPont. The average is not what payroll sees: because the cycle drifts across the calendar, individual workweeks alternate between 36 and 48 hours, so every other week carries 8 overtime hours under a 40-hour workweek. The distinctive feature is that the day-to-night turn is built into every single cycle. A nurse finishing the second day shift at 19:00 starts the first night shift at 19:00 the following evening, then finishes the block at 07:00 with a four-day recovery window. Whether that is humane depends on whether the four days off are protected. If your call-out process routinely reaches into the off block, DDNN stops being a recovery pattern and becomes a fatigue pattern.

4-on / 5-off

Four 12-hour shifts, then five days off, on a 9-day cycle.

Four shifts in 9 days is 48 hours per cycle, or about 37.3 hours per week on average. That average is the part people quote and the part that misleads. A 9-day cycle does not line up with a 7-day workweek, so the pattern drifts: some payroll weeks contain four shifts (48 hours, producing 8 overtime hours above 40) while others contain three or even two (36 or 24 hours, none). The long-run average sits below 40 while individual weeks still trigger overtime. Before you standardise on this, run a full 63-day span — seven cycles, nine weeks — through the pay system and look at the weekly totals rather than the average.

Four consecutive 12-hour shifts is also a genuine fatigue question, not a scheduling preference. Set the consecutive-shift limit in your own schedule rules where you can defend it, and make exceptions visible.

Count hours at the employee level, then test the schedule against the pay system. The same rotation can create different overtime totals depending on the workweek boundary.

The last row is the commonly missed result. The FLSA permits hospitals and residential-care establishments to use an agreed 14-day period, but overtime is due for hours over 8 in a workday and hours over 80 in the period. Seven 12-hour shifts therefore produce 28 daily overtime hours.

That makes 8/80 a poor fit for most 12-hour rotations. State law may also restrict mandatory overtime. Pennsylvania, New Jersey, New York, and Washington reach some long-term care settings, while several other state laws stop at hospitals. Check the statute for your facility before calling a schedule compliant.

Most 12-hour schedule advice is written for hospital units. A long-term care building has the same pattern math plus three problems on top of it.

• The schedule feeds a reporting input. PBJ is built from hours paid to work, and the schedule is where those hours are set up, so a grid that looks complete can still produce wrong hours if a night shift was not split at midnight or the meal-break deduction was not applied.
• The pool is smaller. A hospital unit backfills from a float pool. A 90-bed building often backfills from the handful of people who are not already working, which is how a tidy four-crew rotation becomes an agency call in practice.
• Some shifts are required, not preferred. An uncovered required nursing shift is a hard-constraint failure, and it is visible in the data you submit. That is a different category of problem from a thin-but-legal Tuesday.

Shiftd builds the pattern and then checks it: running hours per employee, coverage by role and unit, and PBJ hours by calendar day, all before the schedule is published. It does not replace payroll, timekeeping, or clinical charting.

Try it on next month's grid →

Two handoffs per patient per day is one reason teams choose 12s. Three 8-hour shifts create three handoffs for the same 24-hour span. Fewer transitions can make the day easier to coordinate, but it does not make a 12-hour shift easy to work.

The tradeoff gets sharper when a rotation combines long shifts with quick changes between days and nights. Fixed assignments avoid that flip, but fixed nights can be harder to staff. A rotating 2-2-3 spreads both shifts across the crew, though the changeover lands in the same schedule that is supposed to provide recovery.

Before approval, ask:

• How many consecutive 12s does each person receive?
• Which nurse is first call for a vacancy at the end of a block?
• Does a pickup create a day-to-night turn?
• Are weekend assignments fair over the full cycle?

Do not turn a common policy into a legal rule. A three-shift cap may be your facility's fatigue policy, but the research did not verify a universal mandate. Put the limit in schedule rules you can defend, then make exceptions visible.

PBJ is not a second scheduling system. CMS uses it for staffing submissions, and long-term care facilities subject to 42 CFR Part 483, Subpart B must submit the required data.

Report paid work by calendar day, not by the label on the schedule. An 11:00 PM to 7:00 AM shift contributes 1 hour to the first date and 7 hours to the next date. CMS also requires a 30-minute meal-break deduction for each full shift paid to work, whether or not the employee takes that break. A 12-hour shift paid as 12 hours becomes 11.5 PBJ hours.

Map the nurse to the correct job code. CMS lists Registered Nurse under code 7, Licensed Practical or Vocational Nurse under code 9, and Certified Nurse Aide under code 10. Administrative nursing work uses different codes. If the schedule and payroll disagree with the job-code mapping, the problem is data quality.

• A 2-2-3 grid averages 42 hours, so a 40-hour workweek creates built-in overtime unless the staffing model absorbs it.
• A pickup can create a 48-hour week or a day-to-night turn even when the open shift looks isolated.
• A 12-hour schedule can look complete while PBJ hours are wrong because the shift crossed midnight or the meal break was not deducted.
• A state mandatory-overtime restriction may cover a nursing home, a hospital, or neither. Do not copy a hospital rule into an SNF policy.
• A 9-day cycle such as 4-on/5-off averages under 40 hours while individual payroll weeks still reach 48. Check the weekly totals across a full 63-day span, not the average.
• DDNN puts a day-to-night turn in every cycle, so pulling someone into their four-day off block removes the only recovery the pattern provides.