Do they close at 5 or 6 on Saturdays ? The website says 6pm via google

I recently visited the Riverbanks Zoo and on the general admission ticket the operation hours are printed as following: Park Hours 9 am - 5 pm Daily

Pretty sure its 6. But you may want to call and confirm

Last i was there on Saturday it was 6

Might want to call them to confirm if you aren't sure about the time on the website.