Ah. After in your house, go out without sleeping through the door. I literally found it accidentally, lol
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Either go in the house or wait at the campfire. Both end the day. Once in the house (Still on day one), you can leave through the door to enter the night area. (Leaving through the door used to start the next day before this update.) It warns you before heading because it can be quite tough (although, hot >///<)