I think most have already expressed their desire for a true day/night in multiple threads, so don't lose heart if not many respond to this one. A LOT of us want it.
Shoot. Drow should receive disadvantage because of the sun, so even creating Drow characters should immediately call for night traveling and fighting because most Drow would not journey in the bright light of day.
Then there's stealth reasons, for who sneaks into a goblin camp in broad daylight.
But, my big thing is ambiance. Spooky forests at night with monsters jumping out at you is one of the fun elements of D&D. They need more night encounters.
Come on. If you can make levels like the Underdark all dark, you can allow travel above ground in the dark too.
But I get it. It will require a lot more work to make that happen.
