Make nights pitch black, customise the lengths of day/night cycles, enable night only attacks and darken space platforms/distant planets as they get further from the sun! All configurable.
Granted, I'm playing with a ton of mods, but I don't play with SA and it doesn't seem to work. You talk a lot about SA on the mod page, but SA is not marked as a hard dependency, so I dunno. Is it supposed to work on vanilla?
Well, I installed a forked version of Clockwork for 2.0 and that seems to do what I want. But I'm still using the flares from this mod.
Basically, the multiplier wasn't working properly, but all the other features worked.
Dunno, it's probably one of the mods I have interfering with the day/night cycle, or overwriting your setting. The forked version of Clockwork does work for me, if you wanted to take a look at how they do things