It's just time (5 irl minutes = 1 in game hour. 2 irl hours = 1 day, but is less because you can sleep), but i'm working on upgrading that, because the time in this game is really poor. The event of the neighbour skips time, but it's the only one!
I'll modify more events so the neighbour one won't be the only one. And i'll implement a way to skip time. You'll see this on the 0.4!
