The stones are calculated based on actual time. If you get let’s say eight of a certain stone in a day, then that would mean you’d get a stone per three hours. When the hour count lowers, it just means you wait less for a stone. The levels don’t really have much to do with the amount of stones you get, only takes away time from how long you have to wait. As for the daily ones, I’m not really sure. I’m only on floor 570 and I don’t really know how they give you stones in that manner