During our summer school, we schedule our classes into either Week 1 or Week 2. If students want to register themselves, they will only see the meeting times (i.e. M - F 9:00 - 12:00) under the course, and not the course dates, so they won't be able to tell which course is Week 1 or Week 2 at a glance.
It would be nice if the course start and end dates (or even the course group name, since we could group Week 1 and Week 2 courses ourselves) would display next to the meeting times on the registration screen.