I usually spend 4 to 6 hours a day at the machine (unless I'm just about done with a custom, and then it can be 8 to 10 hours!). If I'm doing an overall meander or other very simple pattern, I can complete a lap or baby quilt in less than a day. I've never really timed it, so I can't really tell you how many hours they actually take. Custom takes much longer - probably anywhere from 20 to 60 hours, depending on size of the quilt and how intricate the design is.