The 11-Hour Rule: Rest Between Shifts Explained
UK law entitles workers to 11 hours' rest between shifts. Here's what that means for security guards working back-to-back or split shifts.
If your last shift finished at 10pm, your employer generally can't have you starting again before 9am. Here's how that rule works, and where it gets complicated for security work.
The basic rule
UK law entitles workers to at least 11 hours' rest between the end of one working day and the start of the next. This sits alongside your right to 20 minutes' break during a shift over 6 hours, and at least one full day off a week, or two days off per fortnight.
Where security guards run into this
- Back-to-back cover. Picking up an extra shift when someone calls in sick can push you under the 11-hour gap without you realising.
- Shift patterns that rotate day to night. A guard finishing a 10pm shift and starting a 6am shift the next day is well short of 11 hours.
- Multiple companies. If you work for two agencies, neither one necessarily knows about the other's shift, so the gap between them can slip through unnoticed.
When it can legally be shorter
The 11-hour rest can be reduced or averaged out for certain shift workers, and this is legal, not a loophole your employer is hiding. The exception is driving work, where the minimum drops no lower than 10 hours between shifts. If your role involves security-related driving, that distinction matters.
Why this is easy to miss with multiple employers
Each company tracks its own rota, but nobody is tracking the gap between one company's shift and another's. If you take a late finish with Company A and an early start with Company B, you're the only person positioned to notice the overlap.
What to do about it
- Note your finish time and next start time as you accept shifts, not after
- If you're regularly under 11 hours, raise it, since fatigue on a security site is a genuine safety issue
- Keep a record if you want to challenge a pattern later
How Shiftaan helps
Because Shiftaan logs every shift across every company you work for, in one timeline, a short turnaround between two employers is easy to spot before it becomes a habit.
Lose the Notes app. Let Shiftaan track your shifts. Try Shiftaan free.
