What are the dates & hours of ACL? December 07, 2021 16:01 Updated Save The Date! ACL Fest 2022 happening Oct. 7-9 & 14-16. Check back closer to October for festival hours. Related articles Is there a current map of the festival grounds at Zilker Park? Is there a schedule of performances? How do I get to the festival? Where is the entrance to the festival? I have a question about my ticket(s).