- Priority registration through August 5
- December 12-January 6—Online registration. Mail-in registration accepted anytime.
- January 4-6—In-person registration, 10 a.m.-2 p.m. at Arsht Hall.
- January 6—Priority registration deadline.
- January 10–13—Office closed for registration processing.
- January 5—Open House, 10 a.m.-1 p.m., Arsht Hall
- January 24—Class registration letters mailed.
- January 31-February 2—Drop/add and registration for classes with open seats, 10 a.m.–2 p.m.
- February 3—Office closed to members.
- February 6—First day of classes.
- February 20—Last day to make requests to audit UD credit classes.
- March 27-31—University of Delaware Spring Break. No classes.
- May 5—Last day of classes.
- May 8-September 8—Arsht Hall closed for renovations. Staff support available by phone.
- May 30-June 2—OLLI at the Ocean
- July 11-August 3—Summer Session held at A.I. duPont High School. Registration begins April 17.
- Fall 2017 classes will take place September 11-December 8, 2017.