# Top questions of the week and month

When you look at the list of "top questions" for the week, does that mean the top questions asked at most 7 days from the present, or does it refer to questions asked in a certain fixed week (for example from the most recent Sunday)?

I imagine it is the former so that the list is always populated. Not that this matters all that much, I'm just curious.

You are right, week = "at most 7 days from the present" and month = "at most 30 days from the present". At present the Month page has several questions with last activity in May. Related: Filter top questions of the month by ...err... month?
Although you did not ask about the hot tab, for completeness I'll add a formula for the hotness of a question, taken from How are questions in the 'hot' tab selected? $$\textrm{hotness} = \frac{ \log( 4Q_{\rm views}) + \frac15 Q_{ \#\rm answers}Q_{\rm score} + \sum A_{\rm score}} { Q_{\rm age}+1 - ((Q_{\rm age} - Q_{\rm updated})/2) ^{3/2}}$$