Did you notice this behaviour with V1100 as well? Or just the latest V1200? I'll look around to see if there's something that triggers the night time lights. And just to be clear, you meant the street lights and ai vehicle lights?
No, it happens only with the V1200. No difference if I use the standalone or the mapfiles.
And yes, I mean the street lights and the ai vehicle lights.
For me it seems that the lights turn on at the original vanilla time, but as it`s getting dark earlier with your changes, the game doesn`t recognize that.
Maybe you can change the time when it`s getting dark a little bit. Getting dark around 6 pm in july / august is very early when you are located in western europe.