More than 200 UK companies have permanently switched to a four-day work week without any pay loss, according to research by the 4 Day Week Foundation.

According to ITV News on Monday, the move includes marketing agencies, IT firms, consultancies, and non-profits, employing over 5,000 people.

Campaign director, Joe Ryle, emphasised that the traditional five-day work week, “invented 100 years ago,” is “no longer fit for purpose.”

He added, “With 50% more free time, a four-day week gives people the freedom to live happier, more fulfilling lives.”

Supporters argue that shorter work weeks are key to attracting and retaining employees while improving overall well-being. London-based companies lead the charge, with 59 of the 200 adopters.