End time problem

I want to enter the “run” of a show (play) as a special event type. I am having a problem setting an end time when that time is one or more days after the start date, but the end time is earlier than the start time.

For example, I have a show running October 17 at 7:30 pm through October 19 at 5:30 pm. Despite the date being after the start date, I cannot set the end time to earlier that the start time.

I like the feature of not being able to set the end time to earlier than the start time, but that should only apply when the start and end dates are the same.