Consider yourself fortunate. When we go in the spring and fall it closes at 6:00, 7;00 and 8:00 at the latest. I've only seen about an hour or two of IOA in the dark all the times I've been there, and I go for three to four weeks a year. It's a shame they close so early. The park is absolutely beautiful in the evening. With all these new hotels, maybe they'll start extending the hours. Or, at the very least, alternate it with the Studios for the later hours. The Studios get a lot of late hours, probably because of the lagoon show. And, it too, is beautiful under the lights.