In the Rockstar Mayhem tour, what time do Machine Head, Dragonforce, Mastodon, and Black Tide hit the stage?

It%26#039;s my son%26#039;s first metal festival and since they%26#039;ve got three stages, we%26#039;re trying to figure out whether he%26#039;ll be able to see his four favorite bands or if the timings will overlap. I%26#039;m hoping someone has seen some of the early dates of the tour and might have an idea of timings. thanks!