Shift pattern names like "2-2-3" and "9-8-80" look like error codes, but they follow simple logic — usually describing the number of days on and off in each cycle. This guide explains the most common patterns, their weekly hours, how many crews they need, and which industries use them. Use our shift pattern generator to try any pattern with your team.
12-Hour Shift Patterns
12-hour shift patterns are the standard for 24/7 operations. Employees work longer days but get more consecutive days off, and most patterns require only 4 crews to provide round-the-clock coverage.
2-2-3 (Panama)
The 2-2-3 pattern — also called the Panama schedule — follows this sequence: 2 days on, 2 days off, 3 days on, 2 days off, 2 days on, 3 days off. The full cycle is 28 days, requires 4 crews, uses 12-hour shifts, and averages approximately 42 hours per week. Every other weekend is a 3-day weekend, which makes this pattern popular with employees.
The 2-2-3 is widely used in public safety, healthcare, and manufacturing. Its main advantage is that no employee ever works more than 3 consecutive days. Generate a Panama schedule for your team.
4-3-3-4
The 4-3-3-4 pattern means 4 days on, 3 off, 3 on, 4 off. It runs on a 14-day cycle with 4 crews working 12-hour shifts, averaging approximately 42 hours per week. Every team gets at least one 4-day weekend per cycle, which is a significant quality-of-life benefit over patterns that never give more than 2 consecutive days off.
This pattern is common in manufacturing and police/fire departments. The 4 consecutive work days are the tradeoff — some employees find 4 straight 12-hour days fatiguing. Read the full 4-3-3-4 guide.
DuPont
The DuPont schedule is a 28-day cycle that includes a 7-day break every rotation. It uses 4 crews working 12-hour shifts and averages approximately 42 hours per week. The sequence is: 4 night shifts, 3 off, 3 day shifts, 1 off, 3 night shifts, 3 off, 4 day shifts, 7 off. That 7-day break is the defining feature — no other common 12-hour pattern offers a full week off every month.
DuPont is considered the gold standard in chemical plants, refineries, and continuous manufacturing operations. It was originally developed by the DuPont company for their chemical facilities. Generate a DuPont schedule for your operation.
4-5-5-4
The 4-5-5-4 is an 18-day rotation: 4 days on, 5 off, 5 on, 4 off. It uses 4 crews working 12-hour shifts and averages approximately 42 hours per week. The longer off-periods (5 and 4 days) appeal to employees who value extended breaks, though the 5 consecutive work days can be demanding with 12-hour shifts.
This pattern is less common than Panama or DuPont but is used in some manufacturing and utility operations where employees prefer fewer but longer breaks.
7-on-7-off
Seven consecutive 12-hour shifts followed by 7 days off. For a single shift line (days only or nights only), two crews can alternate week-on/week-off. Full 24/7 coverage with both day and night shifts requires additional crews or separate day/night staffing arrangements.
The 7-on-7-off pattern is popular in oil and gas, mining, and remote site work where employees travel to the work site. The full week off allows travel time and genuine recovery. The downside is 7 consecutive 12-hour days — 84 hours in a single week — which requires careful fatigue management.
8-Hour Shift Patterns
8-hour patterns divide the day into three shifts (morning, afternoon, night) and are traditional in industries that have not adopted 12-hour shifts. They require more crews but each shift is shorter.
Continental (Fast Rotation)
The Continental pattern uses 8-hour shifts (morning, afternoon, night) rotating every 2 to 3 days. The full cycle is 28 days with 4 crews, averaging approximately 42 hours per week. The fast rotation — changing shift times every few days rather than every week — causes less circadian disruption than slow rotation patterns where employees stay on nights for a full week.
This pattern is widely used in European manufacturing and is increasingly adopted in North American operations. Compare it with other patterns using our generator.
4-on-2-off
The simplest continuous rotation: work 4 shifts, take 2 off, repeat. It runs on a 6-day cycle with 3 or more crews and averages approximately 37 hours per week. Days off rotate through the week, meaning every employee eventually gets weekends off — but also eventually works them.
The 4-on-2-off pattern is popular in retail, logistics, and security operations. Its simplicity makes it easy to explain to employees and easy to manage without specialized scheduling software.
Standard 3-Shift
Fixed morning, afternoon, and night shifts with weekly or bi-weekly rotation. This is the traditional 8-hour pattern that most people picture when they hear "shift work." The main drawback is that employees who rotate to nights stay on the night shift for an entire week (or two), which causes significant circadian disruption and sleep debt. Generate an 8-hour schedule for your team.
Compressed Workweek Patterns
Compressed workweek patterns fit standard weekly hours (40) into fewer days. They are not rotation patterns — employees typically work the same days every week.
4x10 (4/10)
Four 10-hour days and three days off every week. This is not a rotation — employees work the same four days each week. The 4x10 reduces commuting costs and shift handoffs by 20 percent (one fewer day per week). It is popular in healthcare, manufacturing, IT, and any field where longer uninterrupted work periods are productive.
The tradeoff is that 10-hour days leave less personal time on workdays, and some employees find the longer days fatiguing. Generate a 4x10 schedule for your team.
9-8-80
Work 80 hours across 9 days in a 2-week period. The typical arrangement is eight 9-hour days plus one 8-hour day, with every other Friday off. Employees get 26 extra days off per year compared to a standard 5-day week — essentially an extra month of three-day weekends.
The 9-8-80 is common in engineering firms, government agencies, and corporate offices. The math on the "8-hour day" matters for overtime calculations: the FLSA workweek must be defined so that the 8-hour day falls in a different workweek from the 9-hour days.
5-4-9
A similar concept to 9-8-80: one week has 5 days (one 9-hour day and four 8-hour days), the next week has 4 days (four 9-hour days). This creates alternating 5-day and 4-day weeks. The 5-4-9 is less common than the 9-8-80 but is used in some federal agencies and defense contractors.
Patterns That Need Caution
Permanent Night Shift
Assigning the same employees to night shifts permanently causes the worst long-term health outcomes among all shift configurations. Research consistently shows that rotating night shifts — even though they cause short-term sleep disruption — lead to better long-term health than permanent nights. The reason is that permanent night workers rarely achieve full circadian adaptation because their days off revert to normal daylight patterns. If permanent nights are necessary for your operation, offer premium pay and more frequent days off to offset the health impact.
Any Pattern Averaging Above 48 Hours per Week
Depending on jurisdiction and overtime policy, sustained work above 40 to 48 hours per week requires explicit overtime planning and compensation. Beyond the legal requirements, extended hours without adequate rest increase workplace injury risk and employee turnover. If your pattern averages above 42 hours per week, verify that your overtime and fatigue management policies are compliant and sustainable.
How to Choose the Right Pattern
Start with two questions: How many hours per day does your operation need coverage? And how many days per week?
- 24/7 coverage with 12-hour shifts: DuPont, Panama (2-2-3), or 4-3-3-4. All require 4 crews.
- 24/7 coverage with 8-hour shifts: Continental rotation. Requires 4 crews.
- 7-day coverage with shorter shifts: 4-on-2-off. Requires 3 or more crews.
- 5-day coverage with long days: 4x10. No rotation needed.
- Standard 5-day with occasional flexibility: 9-8-80 or 5-4-9.
Use our shift pattern generator to compare these options with your actual team size and constraints. You can generate schedules for any of these patterns and export them to PDF or Excel.
Frequently Asked Questions
What is the most common shift pattern?
The most common patterns depend on the industry. In manufacturing and public safety, the 2-2-3 (Panama) and DuPont are the most widely used 12-hour patterns. In retail and hospitality, the 4-on-2-off and standard 5-day week dominate. In corporate settings, the standard 9-to-5 Monday through Friday is most common, with the 9-8-80 growing in popularity as more companies adopt compressed workweeks.
What is the 5-2-5-3 schedule?
The 5-2-5-3 is a 15-day rotation: 5 days on, 2 off, 5 on, 3 off — 10 working days out of 15. With 8-hour shifts, that averages about 37.3 hours per week. With 10-hour shifts, it averages about 46.7 hours per week (likely requiring overtime provisions). The pattern is used in some military and government contexts. The 3-day break every other cycle is the main employee benefit compared to a straight 5-on-2-off pattern.
How do rotating shifts work?
In a rotating shift schedule, employees cycle through different shift times (morning, afternoon, night) on a fixed pattern. The rotation can be fast (changing every 2 to 3 days, like the Continental pattern) or slow (changing every 1 to 2 weeks). Fast rotation causes less circadian disruption because the body does not fully adapt to any single shift time. The key elements of any rotating pattern are: cycle length (how many days before the pattern repeats), shift duration (8 or 12 hours), number of crews (how many teams rotate through the pattern), and direction of rotation (forward rotation — morning to afternoon to night — is generally better tolerated than backward rotation).