Hello!
In case you don't know, right now Unturned is going through a massive overhaul for optimizations, dedicated servers on the steam server list, VAC, workshop and overall better networking which isn't currently on the public branch.
These past several days I've been working on some huge improvements to the day/night, roads/objects and inventory systems:
-You now have complete control over the day/night cycle with the editor, the cycle looks nicer and moon stages are supported. (Zombies will be affected by the full moon!) The time in the editor is represented from 0-1 so on your server you can decide how long the day should be and what time it currently is.