> working person” is someone who learns 8 hours a day
a very relevant quote, even if not fully accurate. Rambam says MT 1:12 “for example” and mentions “baal umanut” – a craftsman, a person skilled/educated in a profession. Reading between lines, this seems first like his ideal case that he wants people to strive for. He is not bringing an example of a merchant traveling or a sheep-herder … So, it seems that he will also not approve so much of people working overtime and then sleeping through classes. As to actual halakha, he requires a set time both during day and during night, without specifying amounts. Books depicting pre-war Lita mention how poor Yidden will change their look into a more dignified one by the end of the work day when they go to shul and then learn with kavanah between mincha and maariv (satisfying above Rambam) after a tiring day.