Universal Halloween Horror Nights 2024 Dates. Halloween horror nights 2024 dates and hours (california) at universal studios hollywood, hhn will operate every thursday, friday, saturday, and sunday from sept. The first night of the event kicks off on august 30th.

Halloween horror nights 2024 dates and hours (california) at universal studios hollywood, hhn will operate every thursday, friday, saturday, and sunday from sept. We are committed to providing an accessible user experience for all website visitors.