More than 3,300 employees across 70 companies took part in the experiment in June, with staff given full pay for 80% of their time while making a commitment to produce 100% of their usual output.
86% of companies say they will move to four-day working week in biggest ever trial itv.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from itv.com Daily Mail and Mail on Sunday newspapers.