in codex.. someone actually explained the reason why day & night couldn't work in a DOS *ahem* BG3 game. it was due to simultaneous turn-based and real-time which very much the design goal for a multiplayer co-op game. when engaging combat.. it's in turn-based. time is actually locked during turn-based but other players could be venturing the world in real-time where the time is actually ticking. unless they remove the time transition during turn-based but seems kinda awkward when everyone in the world is frozen but the day & night cycle still happens. what it all means is that.. folks engaged in a fight could be still in daytime when the other players in real-time that join the fights could be already at night time.