We should discuss on how to improve it since it's an interesting concept. As of now I have no ideas that may have already been done due to my lack of owning a recent Pokemon game in the years.
I actually dislike the night. To me, it now looks ugly. It was better in G/S/C. Also, we need a new day/night evolution or maybe an egg that varies which Pokémon comes out depending on what time of day it is hatched.
Ugly? What the intercourse ? Its just intercourse ing night and day.
I'd personally like to see longer phases than real time. Hell, I'd love part of the story to cast the whole game into darkness for a large chunk of it - then kick in real time after you save the 25 new legendaries.