4-Shift System: Models, Sample Schedule & Template

What is a 4-shift system?

Short answer: A 4-shift system organises four teams so that early, late and night shifts plus the team off duty can cover a 24/7 operation. There is no single mandatory cycle: the sequence must fit weekly hours, rest periods, qualifications, holidays and reserve cover. The sample below is therefore a starting point, not a finished schedule for every company.

In practice, a 4-shift system mainly fits companies with 24/7 operations or very long opening hours. Important: the template below is a planning example, not a legal shortcut. Working hours, rest periods, night/Sunday work and collective agreement rules must be checked for the specific business.

This model is commonly used in industries that require continuous production or service:

• Industry and Production: Chemicals, pharmaceuticals, automotive
• Healthcare: Hospitals, nursing homes
• Logistics & Transport: Distribution centers, airports
• Energy & Utilities: Power plants, waterworks
• Security Services: Property protection, surveillance

The main difference from a 3-shift model is that a fourth team creates additional room for time off and reserve cover. Whether it actually provides more recovery depends on the cycle and the planned weekly hours.

Four planning patterns at a glance

How does a 4-shift system work? One possible base pattern

The following 4-day pattern illustrates early, late, night and off shifts. It is deliberately simplified. With eight-hour shifts, permanently repeating three working days and one day off would average 42 hours per week, so a real cycle needs additional time off or other balancing elements.

Simplified 4-shift cycle

The pattern shows the staggered coverage. Do not adopt it unchanged as a permanent roster: calculate weekly hours, breaks, rest periods, night work and reserve cover across the full planning period.

Alternative: 4-Shift Model with Longer Off Shifts

Some companies use an extended cycle with more consecutive off days:

• 2-2-3 Model: 2 days early shift, 2 days late shift, 3 days off (then rotation)
• 4-4-4 Model: 4 days work (rotating shifts), 4 days off

These variants increase predictability for employees but require more staff and more complex planning.

Advantages of the 4-Shift Model

For Employers

• Continuous operating hours: 24/7 production without interruption
• Higher utilization: Machines and equipment run around the clock – maximum efficiency
• Less overtime: With four teams, workload is better distributed, fewer absences due to illness or overload
• Planning reliability: Clear rotation, fewer conflicts in shift scheduling
• Competitive advantage: Faster delivery times, higher production capacity

For Employees

• Regular rhythm: Predictable shift rotation – you always know when you work
• More consecutive free time: Compared to the 3-shift model, there are more frequent longer free phases
• Allowances: Night, Sunday and holiday allowances (at least 25% for night work in Switzerland, see Night Allowance Switzerland)
• Flexibility: Free days can be used for appointments, family or hobbies
• Lower burnout risk: Better work-life balance than with 3-shift or permanent night shifts

Disadvantages of the 4-Shift Model

For Employers

• Higher personnel costs: Four teams mean more employees – plus allowances for night and weekend work
• More complex planning: Vacation coverage, sick leave and training must be coordinated across four teams
• Communication effort: Four teams never work simultaneously – information transfer is more difficult
• Training time: New employees need longer to adapt to the rhythm

For Employees

• Strain on biorhythm: Constant switching between early, late and night shifts can disrupt sleep
• Social restrictions: Weekend and holiday work, irregular working hours complicate family life and friendships
• Health risks: Long-term shift work increases risk of sleep disorders, cardiovascular diseases and gastrointestinal problems
• Less spontaneous free time: Free days are fixed, spontaneous activities are harder to plan
• Adjustment phase: Some people never fully adapt to shift work

Comparison Table: 4-Shift vs. 3-Shift vs. Alternating Shifts

Conclusion: The 4-shift model offers the best balance between operating time and recovery time – but only if you cope well with shift work.

Template: Sample Schedule for the 4-Shift Model

Here is a practical 4-week shift schedule for four teams (A, B, C, D). Each team works on a 4-day cycle.

Week 1

Week 2

The cycle repeats over weeks 3 and 4.

Template as Excel/PDF Download

Need a ready-made template for your operation? Use the download above as a starting point. When the template becomes a real schedule with employees, availabilities, changes and time tracking, job.rocks for digital staff planning helps move cleanly from model to daily execution.

When is the 4-Shift Model Worthwhile?

The 4-shift model is not suitable for every company. Here are the main criteria:

The 4-Shift Model fits if…

• …your company must operate 24/7 (e.g. production, hospital, logistics)
• …you have enough staff to form four teams (at least 20-30 employees)
• …your employees are willing to work shifts (including night and weekend shifts)
• …you want to achieve a high utilization of your equipment
• …personnel costs are offset by higher productivity

The 4-Shift Model does NOT fit if…

• …you only work during the day or until evening → Then a 2-shift model is sufficient
• …you have too few staff → One team absence endangers the entire operation
• …your order situation fluctuates strongly → Then flexible models are better (e.g. part-time, floaters)
• …your employees are not healthy enough for shift work

FAQ: Frequently Asked Questions about the 4-Shift Model

How many employees do I need for a 4-shift model?

There is no reliable flat number for an entire company. Calculate each role from required people per shift, shifts to cover and the coverage factor based on weekly hours. Then add reserve for holidays, sickness, training and planned absences.

How high are the allowances in the 4-shift model?

There is no single percentage for every case. In Switzerland, temporary night work generally triggers a wage supplement, while regular or recurring night work generally focuses on compensatory time. Sunday and public-holiday work can involve further conditions, permits and collective-agreement rules. Check the specific operation and the applicable agreement.

Can I as an employee refuse the 4-shift model?

It depends on the employment contract, previous duties, any applicable collective agreement and the specific change. A blanket yes or no would be unreliable. Employers should obtain qualified advice and involve affected employees early.

Is the 4-shift model healthier than the 3-shift model?

Not automatically. Rotation direction, consecutive night shifts, length of recovery periods, workload and individual tolerance matter more than the number of teams alone. Shift work can affect health, so occupational-health advice belongs in the design.

• Occupational-health advice and examination rights under the applicable night-work rules
• Healthy diet, exercise, sufficient sleep
• Bright workspaces, ergonomic workplaces

How do I plan vacation in the 4-shift model?

First define minimum staffing and qualifications for every shift. Then plan holiday windows and reserve capacity transparently. A fixed “one person per team” rule does not fit every team size; the required cover after all absences is what matters.

What is the difference between the 4-shift model and continuous shift work?

"Continuous shift work" is the umbrella term for all models that run 24/7. The 4-shift model is a specific variant of this – with four rotating teams.

Are there legal requirements for the 4-shift model in Switzerland?

Yes. The Labour Act (ArG) regulates:

• Maximum working hours: max. 45-50 hours/week (depending on industry)
• Rest periods: at least 11 hours between shifts (can be reduced to 8 hours if compensated within 24 hours)
• Night work: max. 10 hours per shift, at least 25% allowance
• Sunday work: only with permission, allowance according to collective agreement

Conclusion: Is the 4-Shift Model Right for You?

The 4-shift model is a proven system for companies that must operate around the clock. It offers a good balance between operating time and recovery time – but only if you have enough staff and your employees cope well with shift work.

Advantages summarized:

• 24/7 operation possible
• Regular, predictable rhythm
• Better work-life balance than 3-shift
• Higher productivity and equipment utilization

Disadvantages summarized:

• Higher personnel costs
• Strain from shift work (health, social life)
• More complex planning

Want to introduce or optimize a 4-shift model? Start with the template, check labour law and collective agreements carefully, and then plan the rollout. If you do not want to manage everything permanently in Excel, WhatsApp and manual lists, job.rocks can bring teams, shifts, availabilities, communication and time tracking into one system.