Having certain quests or maps at night would be a half-arsed implementation IMO and only serve to reinforce the sense of a static world where we can only experience things at certain/fixed times of the day.

I've noted in these forums some have suggested that scripting the routines for NPCs would be problematic...and I ask out of ignorance but why is this a problem with BG3 but not a problem in Pillars of Eternity for example, where NPCs went to sleep? Something to do with the game engines...or what?