Unfortunately, not really in the same way. The first ADR is usually for 10 minutes after the start of EMH/MM on EMH/MM mornings or 20 minutes before official park opening on non-EMH/non-MM mornings (this is about when the turnstiles open and they hold guests on Main Street).
So, for example, let's say EMH/MM starts at 7:00 am. The first ADR will be for about 7:10 am. Official park opening for everyone would be at 8:00 am.
Otherwise, let's say there is no EMH/MM. The park opens at 9:00 am. The first ADR will be for around 8:40 am, which is about when they open the turnstiles for everyone to enter the park. They hold guests on Main Street until the park official opens.