Not a stupid question at all
Many years ago, at a small airport with many restrictions, we had to delay a flight for boarding due to a strong wind component. Since the restrictions (runway slope, etc) only allowed take off in a certain direction, the wind on this day was blowing in the "wrong" direction for take off and thus the flight was grounded until it either calmed down or changed. One particular loud American lady was making herself know throughout the event and eventually piped up with the most seriously demanding question - almost shouting:
"So WHEN is the wind gonna change direciton??" ..
The wind very often changes direction just before sunset, and just after sunrive, very common.
This is used by many operators, as a window for heavier weight take offs.
So not so stupid.....
Glf