Interior Lighting Issue

My friends and I have been decorating a warehouse, hoping to use it for events, etc., but have run into a problem with the lighting. After being in the warehouse for a while, the inside of the building would get really bright, and fog would appear. We have also noticed that the pink lamps used in our pillars would also shut off and essentially ruin the vibe/aesthetic of the building.

To resolve this issue, we realized we have to leave the warehouse and go back in for it to essentially reset the time - you go into the warehouse at night and it cycles to daytime within 10-15 minutes. We have tried other things like blocking off the whole outside with walls or adjusting the Z level, but nothing has seemed to work besides the above leaving and going back in.

What it’s supposed to look like inside:

What it looks like inside after about 10-15 minutes (even with all the walls, ceiling, and flooring blocked off):

We are hoping that the cycling of night to day could be stopped while inside warehouses/houses to prevent the above issues from continuing to happen.

Thanks for coming to my ted talk. : )