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Global Four-Day Workweek Trial Validates Health Gains as 90% of Firms Continue Schedule

International pilots alongside pending US legislation signal a policy shift toward shorter workweeks under expert calls for rigorous productivity metrics.

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Countries Trialing a Four Day Week in 2025
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Overview

  • A six-month, income-preserving trial of nearly 3,000 employees across 141 organizations in six countries showed marked reductions in burnout and improvements in mental and physical health compared with control firms.
  • Ninety percent of trial participants opted to keep four-day schedules after the experiment, indicating sustained operational viability without pay cuts.
  • A German study using fitness trackers found participants experienced significantly less stress, increased physical activity and about 38 minutes more sleep per week with no decline in revenue.
  • Critics including Teramind’s Isaac Kohen warn that reliance on self-reported productivity creates a critical data gap and urge the adoption of objective performance metrics.
  • Senator Bernie Sanders’ Thirty-Two Hour Workweek Act advances in Congress alongside government-backed pilots in Japan, the UAE and Portugal.