Nachtarbeit (Night Work)
Nachtarbeit means work between 23:00 and 06:00. Swiss employers must comply with strict rest-period rules, wage premiums where applicable, and health-and-safety oversight. Violations expose you to labour inspectorate fines and liability.
In Switzerland, night work (Nachtarbeit) is defined as any work performed between 23:00 and 06:00. The Arbeitsgesetz (Labour Act) regulates who can work these hours, how long shifts may run, and what compensation or rest must follow.
Most employers encounter Nachtarbeit rules when staffing 24/7 operations—hospitals, care homes, hotels, manufacturing, or security. Small teams often underestimate the complexity and risk costly compliance lapses.
Legal Framework and Scope
The Arbeitsgesetz sets a hard rule: night work is permitted only in sectors where operational necessity justifies it (healthcare, hospitality, transport, security). Exceptions exist for management and on-call roles. Your canton's labour inspectorate (Arbeitsinspektorat) determines what counts as genuine night work.
Night-work contracts must be in writing and state clearly that night shifts are part of the role. Changes to a standard day contract require written agreement. Many employers skip this step and invite disputes later.
- Night work = 23:00–06:00 under Arbeitsgesetz; some cantons set narrower windows (e.g. 22:00–06:00).
- Permitted only in essential sectors; management/on-call roles have separate rules.
- Written contract required; verbal agreements are not valid.
- Maximum 10 hours per night shift (or 9 hours in hazardous work).
- Weekly limits: night workers cannot exceed 48 hours average per week over 4 weeks.
- Age limit: workers under 18 are banned from night work except in certain healthcare roles.
Rest Periods and Compensation
After a night shift, employees must receive 11 consecutive hours of rest before their next shift. If that rest cannot be guaranteed, you must grant time-in-lieu compensation. Many SMEs fail to plan rosters carefully and inadvertently breach this rule.
Wage premiums for night work are not mandated by law but are standard in most GAV (collective-labour agreements). Check your sector's applicable GAV—failure to pay GAV-stipulated night bonuses is a breach of contract and can trigger tribunal claims.
- 11 consecutive rest hours mandatory after night shift; no exceptions.
- If rest cannot be given, compensatory time off must be granted promptly.
- GAV night-work bonuses (typically 10–25% premium) are binding on signatory employers.
- Health and safety assessments required before deploying staff on regular night shifts.
- Night workers have right to free occupational health screening (some cantons mandate this).
- Fatigue-related incidents must be documented and reported to cantonal authority if serious.
Common Mistakes and Compliance Check
The single most common mistake: scheduling two consecutive night shifts without ensuring 11 hours' rest in between. This breaches the Arbeitsgesetz and is easily discovered during an inspection. Rosters must show clear rest windows.
Second mistake: assuming all staff can do night work without assessment. Young workers, pregnant employees, and those with certain health conditions have restrictions. Document your assessment and keep records; the labour inspectorate will ask for them.
- Do not stack night shifts without verifying 11-hour rest gaps in your roster.
- Verify your sector GAV for mandatory night-work bonuses; non-payment = breach.
- Keep written night-work contracts on file; verbal agreements are not defensible.
- Conduct occupational health risk assessment and document it; inspectors will request proof.
- Train managers on rest-period rules; misunderstanding is no excuse.
- If unsure whether your sector qualifies for night work, ask your cantonal labour inspectorate in writing before deploying staff.
Frequently asked questions
- Do I have to pay extra for night work?
- Swiss law does not mandate a premium, but your sector's GAV almost certainly does. If you are party to a GAV, you must pay the stipulated night bonus (typically 10–25% above base rate). If no GAV applies, a market-rate bonus is expected and good practice. Check your collective-labour agreement or consult your sector association.
- Can I ask an employee to work night shifts if their contract doesn't mention it?
- No. Night work must be agreed in writing when the employment relationship begins or before deployment. Unilateral roster changes that impose night work without consent invite legal dispute. If your operation now requires night shifts, you must amend the contract in writing with the employee's consent.
- What happens if I breach night-work rules?
- The cantonal labour inspectorate (Arbeitsinspektorat) can issue fines and compliance orders. Repeat or serious breaches (e.g. unsafe rest patterns) can trigger formal proceedings. Employees also have grounds to claim damages for unpaid rest-period compensation or GAV bonuses. A lawyer should review your exposure if an issue arises.
General information for Swiss employers, not legal advice. Have a lawyer confirm anything with legal consequences.