Final answer:
The text provided does not give a definitive answer as to what both the daughter and son of the speaker spend hours doing, as it describes various individuals in different scenarios without a clear link between the daughter's and son's activities.
Step-by-step explanation:
The passages provided do not include a clear mention that both the daughter and the son of the speaker spend hours doing one specific activity.
Each passage describes different individuals in various scenarios, but it does not unify the daughter and son in one consistent behavior.
The content spans different family and work-related situations, such as playing on deck, winding silk, attending to domestic chores, and handling personal matters.
Therefore, it's not possible to definitively answer the question as to what both the daughter and son of the speaker spend hours doing without further context or information from the text.