It fluctuates based on workload, but I find myself working anywhere from 4-5 hours a day to basically nonstop during my workday (9 hrs). I do think most people are really only capable of doing “good” work, meaning being at their most productive, for about 3 hours a day though. The rest of the time is spent slogging through and putting out mediocre work, just to get it done.
Lol as an American I feel uncomfortable putting in more than 2 consecutive DAYS in a row and I’m salaried, not a service worker or anything. I can’t even imagine having 2 weeks off. I’ve only been able to manage that once in my adult life during one of my transitions to a new company.