Isn't "on time" when you are done with the book? I don't use the library because I can't finish a book in the allotted time (two week I think, but haven't been

Isn't "on time" when you are done with the book? I don't use the library because I can't finish a book in the allotted time (two week I think, but haven't been there in a long time). Often you can't renew because there is a wait list. I'm probably a slow reader, but I also have a job, kids, etc. If our library switched to this policy I would definitely use it and probably get the books back in 4 weeks. The "encouragement" would be that I want to read another book, and I don't need to pay a fine. As it is I just buy books on kindle so I can read them at my pace.