This, funnily enough, has to be earned by playing Devils and the Details on a Friday night.
I earned this at 6:04pm in my local time by simply starting a 3 player game using 3 different devices. It popped immediately as the game started the intro.
I tried starting a game at 5:55pm and it didn’t unlock.
Disconnecting your Xbox from its network connection and changing the date and time won’t work for this one unfortunately. You’ll need to play after 6pm on a Friday, due to the fact the game needs an online connection for you to even start a game, so set a reminder for Friday at 6pm if you need to.