Common shift rotation patterns explained
4-on-4-off, Panama, DuPont, Continental, Southern Swing. If you've just been handed one of these and don't know what your life is about to look like, here's each pattern laid out day by day.
The short answer: almost every 24/7 rotation is solving the same arithmetic. A week has 168 hours to cover, and with four crews that's 42 hours per crew per week. Every pattern below lands on that number — they differ in how they distribute it, not in how much you work.
What actually separates them is cycle length (how long before your schedule repeats), how fast they rotate between days and nights, and whether you ever get a long break.
How to read these
Each pattern is drawn as one full cycle, one square per day:
D day shift · A afternoon or swing · N night · – day off. Where a pattern is usually worked as 12-hour shifts there are no afternoons, just days and nights.
Every one of these has local variants. Two employers running "4-on-4-off" may mean subtly different things, and the direction of rotation in particular varies. Treat these as the standard shapes, not as gospel about your own roster.
4-on-4-off
| Cycle length | 8 days (16 if days and nights alternate, as above) |
|---|---|
| Shift length | 12 hours |
| Average week | 42 hours |
| Common in | Emergency services, manufacturing, security, control rooms |
The most straightforward of the lot, and popular for exactly that reason: four on, four off, repeat. Many employers alternate blocks so you do four days, four off, four nights, four off, giving a 16-day cycle.
What it does to you: the four-day break is genuinely restorative, and it's frequent enough that you never feel far from one. The cost is that your days off drift through the week — your weekends land wherever the cycle puts them, and anything on a fixed weekly schedule becomes hard to attend.
For habits: the eight-day cycle doesn't divide into a seven-day week, so nothing lines up with a weekday ever again. This is the pattern where calendar-based habit tracking breaks down most obviously.
2-2-3 (Panama, or Pitman)
| Cycle length | 14 days (28 if it alternates days and nights) |
|---|---|
| Shift length | 12 hours |
| Average week | 42 hours |
| Common in | Police, dispatch, utilities, oil and gas, mining |
Two on, two off, three on, two off, two on, three off. The pattern is the same length as a fortnight, which is its great advantage: your schedule repeats on the same days of the week, and you get every other weekend as a three-day break.
What it does to you: you never work more than three days in a row, so fatigue stays manageable, and the fortnightly repeat means normal life is plannable in a way most rotations don't allow. The trade is that you're never off for very long — the three-day break is the biggest you get.
For habits: the friendliest of the rotating patterns, because a 14-day cycle maps neatly onto weekdays. A habit for "work days" genuinely does land on the same weekdays each fortnight.
DuPont
| Cycle length | 28 days |
|---|---|
| Shift length | 12 hours |
| Average week | 42 hours |
| Common in | Chemical plants, refineries, heavy industry |
Four nights, three off, three days, one off, three nights, three off, four days, then seven consecutive days off. That last week is the whole appeal — it's effectively a holiday every four weeks without touching your leave.
What it does to you: the seven-day break is superb. The rest of the cycle is demanding, and the single day off between a night block and a day block is brutal — one day is not enough to turn your body clock around, and most people describe that changeover as the worst part of the pattern.
For habits: the 28-day cycle means a habit's context changes completely from one week to the next. The seven-day break is where the bigger habits belong — the things you can't do during a work block at all.
Continental (2-2-2-2)
| Cycle length | 8 days |
|---|---|
| Shift length | 8 hours |
| Average week | 42 hours |
| Common in | European manufacturing, logistics, process industries |
Two mornings, two afternoons, two nights, two off. A fast forward rotation — you move through all three shift types in under a week, always rotating forwards (mornings → afternoons → nights), which is the direction the body handles better.
What it does to you: you're never on nights long enough to fully adapt, which sounds bad but is arguably the point — fast rotation aims to keep you close to a day schedule rather than flipping you fully and flipping you back. Some people find it much easier than long night blocks; others find they're permanently slightly out of sync.
For habits: the hardest pattern for a single routine, because your shift changes every two days. This is the rotation where per-shift-type habits stop being a nice idea and become the only workable approach.
Southern Swing
| Cycle length | 28 days |
|---|---|
| Shift length | 8 hours |
| Average week | 42 hours |
| Common in | Utilities, older industrial rosters, some public safety |
Seven days, two off, seven afternoons, two off, seven nights, three off. A slow rotation: you stay on one shift type for a full week before moving to the next.
What it does to you: a week is long enough to partly adapt to each shift type, so within a block things feel settled. The two-day changeovers are the pinch points, and the week of nights is a genuine week of nights.
For habits: the most forgiving rotation for routine-building, because each week has a stable shape. Set up a per-shift-type routine and you get seven consecutive days to practise it.
Which patterns are hardest on your body?
Broadly, and with the caveat that individuals vary enormously:
- Forward rotation beats backward rotation. Mornings → afternoons → nights is easier than the reverse, because it's easier to delay your body clock than to advance it.
- Enough recovery after nights matters more than the block length. DuPont's single day between nights and days is harder on most people than its four-night block.
- Predictability has real value. A pattern that repeats on the same weekdays — 2-2-3 in particular — lets you keep commitments, and that's worth more to most people's wellbeing than a marginally better sleep profile.
Build your rotation once. Shifty Habits has presets for the common patterns — 4-on-4-off, 2-2-3, DuPont, Continental and more — and you pick which of your own shift types fills each stint. Habits then attach to those shift types and follow the rotation automatically, however long the cycle is.
Get it free on Google PlayFrequently asked questions
What is a 4-on-4-off shift pattern?
Four consecutive 12-hour shifts followed by four days off, repeating on an eight-day cycle. Many employers alternate the blocks between days and nights, which makes the full cycle sixteen days. It averages 42 hours a week, and because eight days doesn't divide into a seven-day week your days off move through the calendar continuously.
What is the Panama or 2-2-3 shift schedule?
Two days on, two off, three on, two off, two on, three off — a fourteen-day cycle of 12-hour shifts averaging 42 hours a week. Its main advantage is that it repeats on the same days of the week each fortnight and gives you every other weekend as a three-day break.
What is the DuPont shift schedule?
A 28-day rotation of 12-hour shifts: four nights, three off, three days, one off, three nights, three off, four days, then seven consecutive days off. It averages 42 hours a week and is known for that full week off every four weeks, at the cost of a demanding middle section.
Why do most shift rotations average 42 hours a week?
Because covering 168 hours a week with four crews works out at 42 hours each. Most 24/7 rotations are different ways of distributing that same total, which is why patterns as different as 4-on-4-off, Panama, DuPont and Continental all land on the same average.
Is forward or backward shift rotation better?
Forward rotation — mornings to afternoons to nights — is generally easier to cope with, because delaying your body clock is easier than advancing it. Patterns that rotate backwards tend to leave people more persistently fatigued, though the amount of recovery time between blocks matters at least as much as the direction.
Which shift pattern is best for having a life outside work?
Patterns with a cycle that divides into weeks, like the fourteen-day 2-2-3, because your days off land on the same weekdays each cycle and you can commit to things that happen weekly. Patterns on eight-day or 28-day cycles drift through the calendar, which makes anything scheduled by weekday difficult to attend regularly.