The very best time to visit the park and not have to deal with huge crowds is on Sunday morning. As a general rule, if you're planning on focusing your attention on experiencing only the Disney MGM Studios' most popular rides and attractions, it'll take you an average of 45 minutes per attraction. This, however, depends on how crowded the park is and which attractions and rides you're trying to experience. If you're heading to one popular ride but notice that a line is particularly short for another attraction that you were planning to check out later in the day, adjust your schedule and go where the lines are the shortest.