On average copies take 2-5 working days. Some arrive sooner. However, other items may take several weeks to obtain or they simply may not be available at all. Books may take 7-10 days to arrive depending on the location of the lending library.
Hard to get items:
Each user has a limit of active requests at one time:
What constitutes an active request?
Physical materials (Print and media)
Electronic materials (Articles, book chapters, etc.)