To be honest, I'd rather have no day/night cycle than the ridiculous accelerated one that many games have.
I've never understood why - provided the game is played at a realistic pace - there's ever any reason to have the day be shorter than approximately 12 real in-game hours. Which means that - since most people don't spent 12 RL hours on a single map - hat you shouldn't realistically see a change in time from day to night if you begin adventuring at dawn.
Now, of course, you can rest whenever, and if you had a game with overland travel (which I would prefer to the giant map) you could arrive at the map at any particular time. But given the constraints the game has - that you go to bed in the evening, and you begin adventuring at dawn - it makes a certain kind of sense you never see the sun go down.