Guys.
The reason there's no Day/Night cycle is because the day/night cycle is tied into the resting system. Because you're supposed to have to rest in order to progress since your long-rest-recharge abilities are supposed to be important.
There's a reason its called the 'five minute adventuring day'. The fact that the game currently doesn't force you to rest often to keep your abilities charged is a balancing issue.
I mean, this would be an even stronger argument in favor of trashing this half-assed current system and go back to having proper passage of time and a serviceable day/night cycle.
Incidentally, i started a thread about this very same topic sometime ago:
https://forums.larian.com/ubbthreads.php?ubb=showflat&Main=94314&Number=728467#Post728467Not really a particularly popular one that most people actually cared about, admittedly, but still...