When do the festival gates open and close? Follow The festival gates officially open at 12pm on Thursday, March 1st for all festival pass holders! Related articles Is there an age requirement? How can I charge my phone? Are there showers at OMF? Comments 1 comment Sort by Date Votes Gfeil12 February 21, 2017 19:02 So when do they close? 0 Permalink Please sign in to leave a comment.