Half Day or Evening Tickets

Hi I am flying down to Orlando in April and will be going to Universal Studios for the first two days. Our first day there we won’t be getting to the hotel until 6:00pm. We’d like to go to the Islands of Adventure for a few hours before it closes at 9:00. Does Universal still sell half day or evening passes? I remember a few years ago seeing them for $40 or so but i can’t seem to find them on their website. Do they not offer them anymore? or are they something you have to buy at the gate?

Thanks for your help!