In six months, 3300 workers in the UK would have worked just four days a week. This experiment, that was years in the making, has captured media and public attention as a record 70 companies voluntarily made the promise of working less a reality for their workforce. Robert Magowan assesses the potential broader impacts of the trial on society and looks at how campaigners are hoping to seize the opportunity to transform the norms that rule our working lives. It was suitably impeccable timing.