Hhn Orlando 2024 Dates. Specifically at universal orlando, halloween horror nights begins each night at 6:30 p.m. Hhn starting early september is pretty much the norm and decorations start getting put up in the weeks before it to prepare.

3, the event will transport attendees to some of horror’s scariest scenes. Halloween horror nights 2024 (hollywood) was the 24th halloween horror nights event in universal studios hollywood.