both; not only A or B, but (overall) ~
Expresses that something applies to both A and B, emphasizing the overall extent or totality.
This pattern is used to say that something applies to both A and B, and by listing these two representative examples, it implies that the situation applies to everything in between or overall. It often carries a nuance of 'not just one side, but also the other, and thus the whole.' For instance, if you say '昼といわず夜といわず働く', it means you work both day and night, implying you work all the time. The pattern is fairly formal and is typical in written Japanese or in speeches, so it is less common in casual conversation. It can be used with concrete nouns like '手' and '足', or with abstract ones like '時' and '場所'.