Asda’s ambitious four-day work week pilot aimed to revolutionise manager schedules but ended up leaving them drained outside of work. With a new pilot to launch this autumn, campaigners are eager to see what other flexibility could improve the workplace. Meanwhile, the potential for AI to optimise flexible working arrangements offers a promising solution to the challenges encountered so far.
Dive into the evolving landscape of workweek experiments and discover how technology might hold the key to success. But before you proceed, why not sign up for our newsletter? It’s the only way to stay informed, and with daily updates, you won’t want to miss our future posts!
Asda Ditches Exhausting Four-Day Work Week Pilot
In September 2023, Asda introduced a four-day work week pilot, allowing managers to work 44 hours over four days without a reduction in pay. This initiative aimed to address the retailer’s high manager turnover by offering greater flexibility. They hoped to enhance stability and improve both colleague and customer experiences.
READ: Automate Time-Wasting Tasks To Allow Four-Day Workweek Benefits to Shine, Expert Suggests
However, the trial faced significant challenges. Many employees reported physical exhaustion during their days off due to the demanding 11-hour shifts. Additionally, the unconventional start and finish times caused difficulties for those relying on public transport and managing school drop-offs/pick-ups.
As a result, Asda decided to discontinue the four-day work week pilot. In its place, the supermarket and petrol station chain announced a new flexible working trial, comprising a nine-day fortnight. Only time will tell if this new approach proves more successful.
November Launch for New Flexible Working Pilot
Back in 2022, over 60 companies joined the UK’s first four-day work week pilot, with 54 maintaining the new schedule 18 months later. This autumn, a second pilot is set to launch, with campaigners encouraging employers to get involved.
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Last summer, then-local Government minister Lee Rowley demanded the Liberal Democrat-run South Cambridgeshire District Council halt its 15-month trial immediately. However, with a new Labour Government in place, organisers are hopeful for a more supportive stance.
The trial will commence in November and showcase its findings to the Government in the summer of 2025. In the latest four-day work week pilot, flexible working models like shorter weeks, nine-day fortnights, and compressed hours will be explored.

Managed by the UK’s 4 Day Week Campaign and Timewise, a flexible working consultancy, the initiative will start training employers this September. Researchers from the University of Cambridge, Boston College, and the Autonomy Institute will provide project analysis support.
Although the recent Asda experiment proved less than successful, analysis from Cambridge University offers hope. In the South Cambridgeshire District Council’s four-day work week pilot, 11 out of 24 areas saw performance improvements, while only two experienced a decline. Notably, there were fewer resignations among refuse collectors, and both planning decisions and call response times improved.
Joe Ryle, the 4 Day Week Campaign’s director, said, “A four-day week with no loss of pay can be a win-win for workers and employers… The nine-to-five, five-day working week was invented 100 years ago and is no longer fit for purpose. We are long overdue an update.”
The Future of Flexibility – Does AI Have the Answer?
Despite Asda abandoning its four-day work week pilot, advancements in technology could enable its reintroduction without overburdening employees. A study by the think tank Autonomy predicts that AI could transition nearly a third of UK working individuals to a four-day week within the decade. Furthermore, the report suggests that 28% could see their week reduced by 12 hours due to productivity gains from AI.
READ: AI More Likely to Displace Workers in High Paying Jobs
Will Stronge, Autonomy’s director of research, believes that a shorter workweek is a practical way to ensure that AI benefits both workers and companies. Integrating AI into various roles and implementing a policy of reduced working hours could help prevent widespread unemployment and improve well-being. He also advocates for an AI industrial strategy that includes collaboration between trade unions, industry, and tech experts to boost productivity while benefiting workers.
As new flexible working pilots launch and AI technology advances, the future of work looks promising. These initiatives, whether through innovative schedules or AI integration, aim to enhance working conditions, boost productivity, and improve employee well-being. With ongoing efforts to refine and implement these models, the goal of a healthier, more efficient workforce is within reach.
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