Originally posted by CoffeeCup:

So one thing I thought to myself was how after a certain point when you have a certain level of armor, you start to steamroll places you've been before, of course. Don't get me wrong, it's fantastic. But one thing I was curious of was, what if during nighttime, monsters from the biomes of bosses you've beaten could often appear (and not just in the house invasions) in other territories? Stuff like coming across draugr or drakes in the meadows and stuff.

I dont think you can do a specific time but just use Valheim Plus.

You can make it spawn way stronger enemies the way you want it. I wouldnt even play the game anymore without Valheim Plus and Epic Loot (Epic Loot also adds a bounty system etc.). And there are also great mods to improve the graphics while keeping the atmosphere.