I've found working 10 hours per day, 4 days a week, with 3 consectuve days off best for heavy labor/construction.
Mon Tues + Thursday Fri best for service (waiting/valet) to break to monotony and dread of 5 days in a joint.
The 5 day workweek was scientifically calculated to be the best for the owners/boss by Ford in early 1900's, but imo (and many others) not best for the employees state of mind.
5 days is miserable and weekends feel like a "intensive recovery" instead of a 2 days vacation when I do construction and 5 days feels like suicidal depression when I do service jobs.
I'm very happy with 4 days a week doing contruction right now at 10 hours a day, once in a while I throw in a 5th day (without overtime time as agreed to) for some extra cash for 4-8 hours.
I ahve nothing to godo to say about five days a week. Fuck it.
3 days a week (which I tried) makes the other 4 days boring as hell in construction; however, doing (example): Monday Tuesday *break* *break* Friday (16 hours) (break*break) at 12 hours 12 hours, 16 hours in service makes it really enjoyable and better to cater to my customers.
Back when I was in construction, we did 10 hour days, and we loved it. 3 days off was the deal. It was also cheaper for construction companies to operate in the 4 day work week instead of the five. Everybody wins, everybody happy, production way better, and less absenteeism by employee's. The pay was great also.
Then came the greed era. College graduates with all their damned ideas. Then came the Mitt Romney's to attempt to buy companies just so they could profit then shut them down or to sell them off after crippling them (Baine capital), right ? Then came deregulation or reorganization that destabilized otherwise solid companies, golden parachutes, government regulations, Nafta etc. Unbelievable when looking back at it all.
No wonder we have rioting in the streets today, and it ain't because of a rogue cop. It's way beyond that, and if not acknowledged then we are done. Biden will double down on the bullcrap, and the economy will completely break.