Working a 12-Hour Shift? Here's Why Your Break Doesn't Get Longer
Working a 12-hour shift in the UK? Here's why you might still only get a 20-minute break, and what your employer can legally get away with.
A guard doing a 12-hour shift and one doing an 8.5-hour shift are often entitled to the exact same break: 20 minutes. That surprises a lot of people, so here's the actual rule.
The rule doesn't scale with your shift length
UK law gives you one unpaid, uninterrupted 20-minute break for any shift over 6 hours. It doesn't increase for 8 hours, 10 hours or 12 hours. A guard working a 12-hour night shift is legally entitled to the same 20 minutes as someone working 6 hours and 1 minute.
ACAS recommends employers give more for longer shifts, but a recommendation isn't a requirement. Many sites do offer more, split across the shift, and that's good practice rather than law.
What “uninterrupted” actually means
The break has to be a genuine break; if work interrupts it, the clock resets. It also can't be tacked onto the start or end of your shift. If you're pulled back to cover the gate five minutes into your break, that break hasn't legally happened yet.
What employers commonly do above the minimum
- Two 20-minute breaks plus a 30–60 minute lunch, spaced through a 12-hour shift
- A single 30-minute or 1-hour break for very long shifts
- Extra breaks required for the job itself, such as cooling off in a heatwave or warming up after time in a cold store
None of this is compulsory. It's the employer choosing to do better than the legal floor, and it varies a lot between sites and companies.
Is 30 minutes for an 8.5-hour shift bad?
No, it's above the legal minimum of 20. It might feel tight compared to some sites, but it isn't a breach.
What to check on your contract
- How many breaks you get and their length
- Whether they're paid or unpaid, since the law doesn't require pay
- Whether the pattern changes for very long shifts
Track it, don't just remember it
If you work different sites for different companies, your break pattern can change shift to shift. Shiftaan lets you log the break taken on each shift alongside your start and finish time, so you have a record if a pattern of short or interrupted breaks becomes a pattern worth raising.
Lose the Notes app. Let Shiftaan track your shifts. Try Shiftaan free.
