8 hours Sleep.
3 hours (1.5h each) commute (not including issues with public transportation)
8 hours work, plus mandatory 1hour lunch break.
1-2 hours grocery shopping and preparing food.
That's about 2 hours that remain and everywhere you go e.g. to the gym for 1 hour you have to commute to and from too. That doesn't include other chores.
Edit: It's really nice that a lot of people want to tell me what to do but I don't really need that unsolicited advice. I'm well aware of that stuff. I just gave an example of what can be common. I have a slowcooker and switched to a soylent like product and work towards getting a drivers license and a car, since I don't have parents gifting that to me.
I actually have even less time since I'm doing my degree next to my 40-45 hours job but didn't add that because it wasn't too common / relatable.
Also it is somewhat insulting that you suggest common knowledge methods. If they would be usuable they would have been applied already.
According to the movement's calculations, it would be enough that every citizen worked a cycle of four consecutive days, four hours a day, followed by three days off. By "tiling" the days and working hours of seven groups, industry and services could be operated 24 hours a day, seven days a week.