There still seems to be a day/night cycle, but there's no sun to let me breed bees, grow grass naturally, or anything else.

Now that I'm here and well set up, I've realized that there's no daytime here. I set up a beautiful AE2 network, multiple ludicrite turbines, and of course, a Tier 7 Energy Storage Multiblock (among many other setups and plenty of aesthetic work) before deciding to move into some more 'natural' mods. Haven't been able to find much documentation on The Last Millennium from Extra Utilities, but I decided to build my void base there anyway.