Ah, assumptions. Even granting a seven-day week, you were lucky for a six-day-plus-essentials-on-the-seventh at best, until solidly into the nineteenth century.
At that, for most people, "work" was not really a delineated area. Even if you had a shop, it would double as your home. Artisans would work whether on spec or commission, but for most people, they overlapped. An alewife brewed her own ale and that she sold at the same time. A weaver wove his own cloth as well as for sale. A housewife's cheese and bread were sold over what she stored up for the winter.
And there were never hours clearly laid out when you were "at work" as opposed to being "at home" except for tasks -- like ploughing -- physically impossible to perform except at some place.