Kings Island Evening ERT for Passholders

I did just see under the 'things to do' tag on the KI website that there is evening ert on The Beast (besides Coasterstock) on August 16th for select coaster club members. But the park closes at 8 pm that day and the ert is at 10:15 pm? I think they meant 8:15 pm, but not sure. It's not typically dark at 8 pm in August, right?