how long on average until a community created on one instance is viewable on others?

So I created midwest.social/c/projectzomboid and in trying to view it on lemmy.one/c/projectzomboid@midwest.social for the past two hours but it isn't showing up. My other community lemmy.one/c/lotrmemes@midwest.social shows up just fine. How long until the project Zomboid one is viewable?