Only read like 3 posts before tl;dr.
@ OP: thats the shadow of the bridge LOL not a sunset.

even if day&night / "nightstalking" were to be implemented, it would be unfair to every other timezone playing graal in "night" when it is day in their country. to make it fair, the system would need to be timezone specific (which means the whole system would have to be clientside?). so no real level changes would occur besides darkness