Why are my ENB settings using both day/night lighting variables simultaneously?

[45AARP]

When tweaking ENB's I've found many of them to use both day and night variables simultaneously, specifically "A Tweaked ENB" has been bugging me with this. It's my personal favorite but when I try to tweak anything it ends up being rage inducing. It'll be the midnight in-game and adjusting the daytime ambient lighting will still take effect, for example.

 

I've noticed there's a day/night threshold sort of setting, but I have no idea what settings would have the daytime lighting stop having effect after 6pm, and nighttime lighting stop having effect after 6am. My few attempts to adjust it haven't even shown any change whatsoever. Does anyone have a solution to this? It's been driving me up the wall for longer than I can remember.