How long does a Spore monolith take to evolve a creature?

Oh, dude, like, a Spore monolith takes, like, around 60 minutes to evolve a creature. So, if you've got an hour to spare and you're feeling patient, go for it. Just set it and forget it, like those infomercials, and come back to a brand new creature ready to wreak havoc or spread love in the universe.