Halloween Horror Nights 2024 Hours

Halloween Horror Nights 2024 Hours. Halloween horror nights 2024 dates and hours (california) at universal studios hollywood, hhn will operate every thursday, friday, saturday, and sunday from sept. 3 — making this the earliest it has ever started and the longest halloween.

3 — making this the earliest it has ever started and the longest halloween. Terror will once again unleash upon universal studios florida on select nights from aug.