Six Flags parks have variable opening hours depending on the location and season. For example, Six Flags Great Adventure in New Jersey is currently open daily from 10:30 AM to 8:00 PM through Labor Day. Other Six Flags parks across the U.S. have their own schedules, typically available on their official park websites under "Park Hours & Calendar." If you want to know the opening hours for a specific Six Flags park, it is best to check the official Six Flags website for that location to get the most accurate and up-to-date information. Generally, Six Flags parks open around mid-morning and close in the evening, with hours extending longer during peak seasons and weekends.