What time do serfs wake up?

Answer 1

Serfs were mostly farmers, and farmers always rise early. Nevertheless, there were no clocks available, and writers did not record much about serfs, so we can only guess that they probably rose around four or five in the morning in summer, possibly later in winter.

The sun comes up pretty early in England in the summer compared to the United States. In Scotland it comes up even earlier. When serfs rose in the northern areas, they probably rose early and the sun was already up, even if it was four in the morning. In winter, they arose in the dark.