One of the world’s leading technology company Microsoft tested out a four-day workweek in its Japan offices and discovered that employees were not only happier – but significantly more productive.

According to The Guardian, Microsoft experimented with a new project called Work-Life Choice Challenge Summer 2019 in the month of August. Under the program, the company’s entire 2,300-person workforce were given five Fridays off in a row without decreasing pay.

The shortened weeks led to more efficient meetings, happier workers and boosted productivity by a whopping 40%.

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In addition to the increased productivity, employees took 25% less time off during the trial and electricity use was down 23% in the office. Employees printed 59% fewer pages of paper during the trial. The vast majority of employees – 92% – said they liked the shorter week as it led to a better work-life balance.

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This is not the first time long weekends have been experimented with in the corporate world. Previously in 2018, a New Zealand trust management company also trialled a four-day workweek over two months for its 240 staff members. Employees reported experiencing better work-life balance and improved focus in the office while staff stress levels decreased by 7%.

Meanwhile, an experiment published by the Harvard Business Review shows that shorter workdays, a decrease from the average 8-hour workday to a 6-hour workday, increased productivity.