"Endless" renpy games?

I was wondering if it would be possible to create an "endless" renpy game that followed a set day cycle/calendar system, where predefined events were possible on certain "days". Does anyone else know if this would be possible in renpy? Or is renpy too reliant on a clear cut beginning and end to do such a thing? And if so, what would be your suggestions to go about it? I'm still pretty knew to renpy, and haven't learned all the in depth stuff yet like adding minigames or battle systems, which I've seen in other renpy games.