Are variable working hours legal in restaurants?

Yes, but only within clear limits

Yes, variable working hours can be legal in restaurants. They are not lawful simply because restaurant work is hectic, but only within the boundaries of the employment contract, the law, any applicable collective agreement, any works agreement, and a fair employer instruction. In Germany, as of 30 September 2026, that means I may set the timing of work only within reasonable discretion, not arbitrarily, while daily working time must also stay within the Working Time Act. The key rules are section 106 of the Trade Regulation Act, section 3, section 4 and section 5 of the Working Time Act.

So if a server, kitchen assistant or bartender asks me, I do not dodge the question: changing start and finish times are not automatically unlawful, but they are not automatically allowed either. If the contract sets a certain volume of hours, I cannot leave open every day whether someone will work three, eight or ten hours. Variable hours need a real framework, for example different demand between lunch service, a sunny terrace afternoon or a late event evening. That is where my duty as an operator begins. I have to organise the business properly instead of passing unpredictability straight down to the team. My operation may be variable, but my scheduling must not become random.

Variable does not mean unlimited or constantly on call

The most common mistake in hospitality is this: “We are flexible, so we can call people in spontaneously or send them home early depending on guest numbers.” It is not that simple. I can schedule different shifts, for example Tuesday from 11 a.m. to 3 p.m. and Friday from 5 p.m. to 11 p.m., if that fits the agreed employment relationship. Something very different is keeping staff effectively on standby without a reliable framework. As soon as working time is only to be called up when needed, I am close to on-call work. That model has its own rules, and the statutory four-day notice period in section 12 of the Part-Time and Fixed-Term Employment Act is not a general deadline for every restaurant rota, but specifically for that arrangement.

For my restaurant, this has a very practical consequence: if I use fixed or at least plannable shifts, I organise variable hours through a real rota and clear agreements. If instead I want someone to come only “if it gets busy,” the contractual basis must actually support that, otherwise I create insecurity, disputes and potentially pay issues. A typical example would be a Saturday evening with two fixed service staff and one additional reserve person only if that structure is expressly agreed. What I do not do is send random messages at 4 p.m. expecting everyone to be available that same evening. Predictability is not a luxury for staff; it is part of fair management.

What matters most: contract, managerial authority and legitimate interests

Whether variable working hours are lawful depends mainly on three questions: what has been agreed, what may I instruct, and how do I take employees’ legitimate interests into account? My authority to direct content, place and timing of work exists only within contractual and legal boundaries and must be exercised reasonably. In plain words, I cannot schedule purely for my own convenience; I have to weigh business reasons against the justified concerns of the team. Someone who has openly communicated regular childcare duties, a second job or a long commute can expect me to take those circumstances seriously when assigning shifts. That is exactly the point behind section 106 of the Trade Regulation Act.

In practice, I therefore separate genuine operational necessity from disorder that I created myself. A sudden coach group arriving can be an exception; an event known for weeks is no exception at all and should have been staffed properly in advance. Variable working hours become much easier to justify when I recognise recurring patterns: short Tuesday lunch, Thursday regulars’ table, heavy Friday bar trade, early Sunday family reservations. Then I may deploy people differently, but not in a fog. From an employee perspective, that difference matters. People usually accept changing shifts more readily when they can see a system behind them rather than the mood of whoever happens to be leading the shift.

The legal guardrails still apply on the busiest days

Even if variable hours are possible under the contract, the hard limits of German working-time law still apply. Adult employees may generally work eight hours per working day on a regular basis; up to ten hours are permitted only if the legally required averaging-out takes place, see section 3 of the Working Time Act. If working time exceeds six and goes up to nine hours, at least 30 minutes of break are required; above nine hours, 45 minutes. Split breaks must each last at least 15 minutes, under section 4. A break must be a real interruption of work. If someone is still polishing glasses or cashing out guests, it was not a rest break, even if minutes were deducted automatically somewhere.

The rest period between two working days matters just as much. As a rule, 11 hours must be observed; in hospitality it may be reduced to 10 hours only if the statutory compensation with at least 12 hours’ rest is granted within the required period, according to section 5 of the Working Time Act. For me as an operator, this becomes particularly sensitive with split shifts and with moving from a late closing shift into an early breakfast service. There is another detail that is often missed: if someone has a second job, working time from both employers is added together under section 2. Two shifts that look harmless on their own can become unlawful in combination. Variable hours often fail in practice not because of bad intentions, but because the knock-on effects were ignored.

A realistic restaurant example: terrace weather, rain risk and a concert evening

Consider a hypothetical example involving an operator of a restaurant with a terrace. For Friday, I first schedule three service staff from 5 p.m. because reservations and the weather forecast suggest a normal evening. At 2 p.m., a local concert nearby is announced, and at the same time the weather stays dry, so the terrace suddenly becomes much more attractive. Variable working hours can genuinely help here: I may adapt shift length or bring in additional suitably planned people according to demand. But it only becomes lawful if the affected employees are not pushed into undefined availability out of nowhere and if breaks, maximum daily hours and later rest periods are still observed properly.

Organised fairly, the same evening looks different. One colleague already has a published late shift until 11 p.m. and agrees, if needed, to stay longer within the legally and operationally permissible framework. Another employee is not “secretly on call,” but has an expressly agreed possible extra Friday window that we use only after speaking to them. By contrast, I would not keep the breakfast employee for the next morning until deep into the night if that would undermine the rest period. That choice shows what really matters. Variable working hours are not a free pass; they are an exercise in weighing options with clear exclusion criteria. If today’s rush would already endanger tomorrow’s shift, it is not a fair solution.

How I organise variable hours cleanly in day-to-day operations

To stop flexibility from turning into hidden arbitrariness, I need a process that people can follow and check. I therefore use the rota as the starting point and record changes visibly. In Bonzumo, I can plan shifts, distinguish between draft and published assignments, and document actual working times with the time clock through start and end entries. The practical benefit is very concrete: if a shift runs longer because of guest demand or a break has to move later, I can later see not only what the plan was but what really happened. When questions come up about minus hours, extra hours or a forgotten clock-out, that separation between planned and actual time helps a great deal. The organisational background is close to Give your team a clear start to every working shift.

What matters here is not to promise what no software can decide on its own. Bonzumo does not automatically judge whether a specific extension is lawful under employment law; that responsibility stays with me. But it does support the process that I have to organise fairly: creating the shift, limiting responsibilities through roles and permissions, recording actual times, checking exceptions and, where needed, tracking them in working-time accounts. One extra practical detail makes a big difference: I do not let schedule changes spread through shouted messages or three private messenger threads. I keep them on one clear planning path. That way the shift lead knows which version applies, and employees do not have to guess whether an old message or the current rota is the controlling one.

Where conflicts usually arise and how I defuse them

Most conflicts are not really about the word “variable.” They are about surprise, poor documentation and unspoken expectations. If someone feels they must always jump in at short notice even though that was never clearly agreed, frustration is inevitable. If I record overtime but never clarify whether it was instructed, tolerated or done on the employee’s own initiative, that also creates trouble. For pay claims, time recording alone is not everything; what matters is the actual work performed and whether the employer caused or accepted it, as the Federal Labour Court stressed in 5 AZR 359/21. That is why I discuss extra hours promptly instead of letting them become a vague end-of-month surprise.

Guests often notice the effect of this discipline indirectly but clearly. A team that is not constantly reshuffled at the last minute works more calmly, makes fewer mistakes and delivers more reliable service quality. For the business itself, good documentation is extremely valuable: I can reconstruct why a shift ran longer, who actually worked and where recurring bottlenecks arise. Once I see those patterns, I would rather adjust the base staffing level and reservation steering than live permanently on emergency fixes. That is where the circle closes for me: a clear rota, sound time recording and coordinated operating routines do not make variable hours lawful by themselves, but they do make them far fairer and more robust. That broader operational context is exactly why I keep the whole service day connected through Connect the work behind every successful service.