Statistics about how much time medieval peasants spent working can be misleading, because a lot of what they spent their time on when they weren't doing fieldwork was still work, e.g. tending their own gardens, making implements and furniture, working on their houses. They had to make most of the things they used themselves. So when "work" was over they didn't go home and watch TV.
It's hard to be sure exactly what life was like for preindustrial agricultural workers, but the most convincing evidence that it was very hard was that early mines and factories were easily able to recruit all the workers they needed, despite working conditions we know to have been harsh.
It's hard to be sure exactly what life was like for preindustrial agricultural workers, but the most convincing evidence that it was very hard was that early mines and factories were easily able to recruit all the workers they needed, despite working conditions we know to have been harsh.