If I recall that correctly:

Dragon Age: Origins
the 'by BioWare' developed
and 'by BioWare' described as a spiritual successor to Baldur’s Gate
and 'by BioWare' due to the lack of the license not named Baldur’s Gate X
game

did not have a day/night-cycle.

And it was great!
Or am I just blind for something where a day/night-cycle would have significantly added to the game?

I am by the way very happy that BG3 seems to take on style of the party camp of DA:O.
I'm excited to see how Larian does it.