Implement duration input field for new/edit calendar event. This will make for better UX for entering and modifying calendar events. See wireframe: https://www.dropbox.com/s/etsw6tcvod2yq8m/Calendar-EventDuration-11-15-12.pdf
Updated wireframes: https://www.dropbox.com/s/31j9d4qrp2v08ny/calendar-events.pdf
This is a feature, not a bug. Don't think it's critical track either.
Tracking but this looks like it might be a v1.2 landing since it's a feature and we're at v1.1 feature complete today.
Agreed, product will triage for a future release.