Show times are usually avaliable online.
If you are talking about animal feeding times; where YOU (as a guest) can feed them; they can vary. Typically, the Sealions, Sharks, and Stingrays are open for most of the day (like 10amish-5ish). Dolphins, because it is more interactive than the other three, and it's so popular, they only have a small amount of fish to sell (dolphins are not bottomless pits that will continue to eat). So the feed times for the dolphins can vary throughout the day. Your best bet is to go first thing in the morning. Also, its possible that there usually seems to be a feed time going after Blue Horizions shows, and the last one seems to end around 430-5 so if you go are planningo n showing up after 5pm, then you've probably missed them for the day.