Listing the length of each attraction at Universal's Islands of Adventure, in minutes:

Universal's Islands of Adventure Attraction Durations
Attraction Duration
Hogwarts Express Arrival 0 minutes
Pteranodon Flyers 1 minutes
Caro-Seuss-el 2 minutes
Doctor Doom's Fearfall 2 minutes
Jurassic World VelociCoaster 2 minutes
Flight of the Hippogriff 3 minutes
Raptor Encounter 3 minutes
The Incredible Hulk Coaster 4 minutes
One Fish, Two Fish, Red Fish, Blue Fish 4 minutes
Storm Force Accelatron 4 minutes
Hagrid's Magical Creatures Motorbike Adventure 5 minutes
Hogwarts Express - Hogsmeade Station 5 minutes
Hogwarts Express - Return Trip to Hogsmeade 5 minutes
The Nighttime Lights at Hogwarts Castle 5 minutes
The Cat in the Hat 6 minutes
Harry Potter and the Forbidden Journey 6 minutes
The High in the Sky Seuss Trolley Train Ride! 6 minutes
Skull Island: Reign of Kong 6 minutes
Triwizard Spirit Rally 6 minutes
The Amazing Adventures of Spider-Man 7 minutes
Dudley Do-Right's Ripsaw Falls 7 minutes
Ollivanders Experience in Hogsmeade 7 minutes
Popeye & Bluto's Bilge-Rat Barges 7 minutes
The Mystic Fountain 8 minutes
Jurassic Park River Adventure 9 minutes
The Magic of Christmas at Hogwarts Castle (Temporarily Closed - Reopens in during the holiday season) 9 minutes
Oh! The Stories You'll Hear! 9 minutes
Dark Arts at Hogwarts Castle 10 minutes
Frog Choir 10 minutes
If I Ran the Zoo 15 minutes
Jurassic Park Discovery Center 15 minutes
Marvel Super Hero Island Arcade 15 minutes
Me Ship, The Olive (Temporarily Closed - Reopens in Unknown) 15 minutes
Camp Jurassic 20 minutes
Poseidon's Fury (Temporarily Closed - Reopens in the future) 25 minutes
Grinchmas Who-liday Spectacular 30 minutes
Hogsmeade Village 30 minutes

Duration of Attractions at Other Parks