Calling All brides-to-be! SHARE your moment and your dream as it comes to life at the Hawaii World Class Wedding Expo– Hawaii World Class Wedding Expo — April 20-21, 2018, Hawaii Convention Center. Fri., April 20th doors open 6:00pm; Sat., doors open 11:00am. Fashion show Friday @ 8:00pm; Saturday @ 3:00pm. Tickets $8.00 at the door.