Whitby Campus Library Summer Closure Posted on May 2, 2019 at 1:23 pm. The Whitby Library will be closed for the summer, beginning Monday, June 3rd to Sunday, August 25th, 2019. Help and lending services are still available during the closure from the Oshawa Campus Library: By Phone: 905.721.2000 ext. 3082 By Email: library@durhamcollege.ca An extended loan period is in place for most materials until September 3rd, 2019 so feel free to borrow your summer material before the closure. NOTE: Any material out on loan may be subject to recall due to holds. See you in August! SHARE: