4 On 4 Off Explained
The 8-day cadence behind one of the most common police rotas — what it actually means for your hours, your recovery, and your leave.
What The Pattern Actually Is
4 on 4 off is built from a single repeating 8-day block: four consecutive working days, then four full rest days, then the same eight days again. Written out as a cadence it looks like WWWWOOOO — work, work, work, work, off, off, off, off — and that block just keeps rolling, with no reference to the calendar week.
The four working days are usually built from 12-hour shifts, and it's common for that block to be split rather than uniform — two earlies followed by two lates, or two day shifts followed by two night shifts, all inside the same four-day run. The exact split varies by force and by team, but the underlying 4-on/4-off cadence is what stays constant.
It's one of the most widely used response and patrol patterns in England & Wales, precisely because an 8-day cycle of 12-hour shifts covers 24 hours a day with only two shift changeovers to manage, rather than three or four.
Why Forces Run It
Only Two Handovers A Day
With 12-hour shifts there are two changeovers per 24 hours instead of three or four with shorter shifts. Fewer handovers means fewer gaps where continuity and briefing information can get lost.
Predictable Round-The-Clock Cover
Because the 8-day cycle doesn't reset against the calendar week, cover is continuous and easy to roster teams against, whatever day of the week it happens to be.
Longer Recovery Blocks
Four consecutive rest days is a genuinely longer recovery window than patterns that constantly rotate shift type day to day, giving the body more time to reset after a demanding run of shifts.
Fewer Rota Changes To Manage
A simple, repeating 8-day block is easier to plan leave, training and abstractions around than a rota that changes shape every few weeks.
The Real Average Weekly Hours
"4 on 4 off" describes the days-worked cadence, not the hours — so it's worth doing the actual maths rather than guessing. With 12-hour shifts, four working days in the 8-day cycle means 48 hours worked per 8 days. Spread evenly across a standard 7-day week, that's an average of 42 hours a week (6 hours/day x 7).
That's an average, not a guarantee for any given week — because the 8-day cycle doesn't line up with the calendar week, some 7-day windows will contain more of a working block than others. Over a full cycle (or several), though, 42 hours a week is the figure this cadence converges on.
The Honest Pros And Cons
What Works
- Four full days off in a row is a real recovery block, not just a weekend.
- Fewer handovers per day than shorter-shift patterns.
- The cadence is simple and predictable — everyone knows where they are in the cycle.
- Because the 4 rest days sit either side of every working block, it lends itself unusually well to stretching annual leave (more on that below).
What Doesn't
- Four consecutive 12-hour shifts is physically demanding, even with a long rest block waiting at the end of it.
- If a night block falls inside those four days, the four rest days afterwards don't automatically undo the sleep disruption — recovering from nights takes its own toll regardless of how much time off follows.
- An average of 42 hours a week is still a substantial working week, and fatigue can accumulate across several cycles rather than reset fully each time.
- Because the cycle ignores the calendar week, plans that assume a normal Monday-to-Friday rhythm (childcare, clubs, family commitments) can be harder to align.
How It Compares To Panama And Continental
4 on 4 off's defining feature is its simplicity — a flat 8-day repeat with one working block and one rest block. Panama (2-2-3) and Continental both rotate through shift types on a slower, more staggered cadence, which changes how the working and rest days line up over a longer cycle. Which one suits you better is a genuinely individual question, and not something this article can settle in a couple of sentences — see the shift patterns hub for the full side-by-side comparison of every named pattern and how each one's cadence actually plays out.
Maximising Leave On 4 On 4 Off
This is the part of the pattern most officers underuse. Because every working block on 4 on 4 off already has four full rest days sitting immediately before it and four more immediately after it, booking exactly those four working days off as annual leave doesn't just give you four days back — it chains straight into the rest days on either side.
4 rest days + 4 days of annual leave + 4 rest days = a 12-day unbroken break, for the cost of just 4 days of leave.
That mechanic isn't a one-off trick tied to a particular date — it's structurally available every single time a working block comes around in the cycle, because the four rest days either side are simply how the pattern is built. The only decision is which working blocks you choose to spend leave on across the year.
What This Pattern Means For Your Pay
Because 4 on 4 off blocks commonly include night shifts and weekend working within the four-day run, unsocial hours allowance and night rates can make up a meaningful chunk of take-home pay on this pattern — often more than officers on a purely daytime rota. If you want to see exactly how those elements add up against your own rank and points, the free Police Salary Calculator breaks it down.
Frequently Asked Questions
What is the 4 on 4 off shift pattern?
4 on 4 off is a repeating 8-day cadence: four consecutive working days followed by four full rest days, then the cycle repeats. It's usually built from 12-hour shifts, often split so the four working days cover two earlies and two lates, or two days and two nights. It's one of the most common response and patrol patterns in England & Wales because it gives 24/7 cover with only two handovers a day.
How many hours a week is 4 on 4 off?
Averaged out, four 12-hour shifts across an 8-day cycle works out to 48 hours worked per 8 days, or an average of 42 hours a week (6 hours/day x 7). That's an average — in any single 7-day window your actual hours can look different depending on where the cycle falls, but 42 hours/week is the figure the cadence converges on over time.
Is 4 on 4 off good for police officers?
It has genuine advantages — four full rest days in a row is a longer recovery block than most rotating patterns offer, and only two handovers a day means less disruption. But it's not without downsides: four consecutive 12-hour shifts is physically demanding, and if a night block falls inside those four days, sleep disruption doesn't fully resolve just because the days off are long. Whether it's 'good' depends heavily on the individual and which shift types land in your working block.
How much annual leave should I book at once on 4 on 4 off?
Because you already get 4 rest days immediately before and after every working block, booking exactly the 4 working days as annual leave turns 4 days of leave into a 12-day unbroken break (4 rest + 4 leave + 4 rest). That's the single most efficient way to use leave on this pattern — the Annual Leave Calculator can model this against your actual entitlement.
Does 4 on 4 off always use 12-hour shifts?
Not necessarily, but 12-hour shifts are the most commonly cited structure, since a 12-hour day makes the four-days-worked, four-days-off maths work cleanly for 24/7 cover. Some forces run variants — including the 'Two-Twos' (2-2-4) pattern, which uses the same 4-on-4-off cadence but deliberately splits the four working days into two days and two nights — so always check your own force's local agreement rather than assuming.