Early entry starts at 7:30am EST Saturday morning. I don't know if this is just tomorrow, all weekend, or most of July. Today was 8am.
Had a great day! Crowds seemed like nothing compared to opening weekend. Not sure if the hit capacity today or not. Express pass is now good on Krakatau not not the drop door/body plunge slides. Restaurants closed before 8pm even though the park didn't close until 9pm. Much fewer ride break downs, except Krakatau. Rivers are way more organized and orderly. Food lines weren't horrific but still seemed a bit slow. Got to wear my glasses with the strap on every ride we did
EDIT: Family in premium loungers next to us got early entry even though they weren't staying onsite. She was told it was included in that. Never heard that before. Not sure if it's always the case or just Merlin dust.