Four-day workweek

“The Four-Day Workweek Is Winning Fans” by Bryan Walsh that appeared online (TIME Magazine) is really interesting to share. Bryan wrote: “In an era when most of us seem to be working more hours than ever provided we're still lucky enough to have jobs, 17,000 people in Utah have embarked on an unusual experiment. A year ago, the Beehive State became the first in the US to mandate a four-day workweek for most state employees, closing offices on Fridays in an effort to reduce energy costs. The move is different from a furlough in that salaries were not cut; nor was the total amount of time employees work. They pack in 40 hours by starting earlier and staying later four days a week. But on that fifth (glorious) day, they don't have to commute, and their offices don't need to be heated, cooled or lit. After 12 months, Utah's experiment has been deemed so successful that a new acronym could catch on: TGIT (thank God it's Thursday). The state found that its compressed workweek resulted in a 13% reduction in energy use and estimated that employees saved as much as $6 million in gasoline costs. Altogether, the initiative will cut the state's greenhouse-gas emissions by more than 12,000 metric tons a year. And perhaps not surprisingly, 82% of state workers say they want to keep the new schedule.”
We're piloting a DST scheme, but mostly unpopular, as many people and newspapers suggest. Can we think of a 4-day-workweek with 10 hours in office?