The 4-Day Work Week Goes Global: Results From 200+ Company Trials

The 4-Day Work Week Goes Global: Results From 200+ Company Trials

The four-day work week movement has produced comprehensive data from over 200 companies across 30+ countries, and the results are striking.

The Results

Productivity: 92% of companies maintained or improved productivity

Revenue: Average revenue increase of 7.5% across participating companies

Employee Wellbeing:

• 71% reduced burnout
• 54% reduction in sick leave
• 67% improvement in work-life balance
• 39% decrease in employee turnover

How It Works

Most trials use the 100-80-100 model:

• 100% of pay
• 80% of time (4 days instead of 5)
• 100% of output expectations

Who's Adopted It

• Iceland: 86% of workforce on reduced schedules (largest trial ever)
• UK: 61 companies in the world's biggest coordinated trial
• Japan: Microsoft Japan reported 40% productivity boost
• Belgium: Government offering right to request 4-day week
• US: Companies like Bolt, Kickstarter, Buffer adopted permanently

Implementation Strategies

1. Meeting reduction: 50% fewer meetings with stricter agendas
2. Async communication: Written updates replace synchronous meetings
3. Priority elimination: Identifying and removing low-value work
4. Technology leverage: AI tools automating routine tasks
5. Compressed hours: Some choose 4x10 instead of 4x8

What Could Go Wrong

• Customer-facing roles harder to adjust
• Manufacturing and healthcare require 7-day coverage
• Some managers struggle with measuring output vs hours
• Not suitable for all industries or roles

The Bottom Line

The 4-day work week is not a productivity hack — it's a redesign of work. Companies that treat it as simply removing a day fail. Companies that redesign processes around it thrive.