The hours change depending on season. Right now the hours are 10:30 AM to 9:00 PM during spring break. They will go back to 10:30 to 6:00 PM beginning April 29th. Except for Saturdays those will be the hours until summer. June 8 the hours start staying open till 9 again Sunday through Friday and until 10:00 PM on Saturdays. Check the calendar for the day you want to go. https://www.sixflags.com/magicmountain/plan-your-visit/park-operating-schedule .
9pm
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