Another answer states:
You can only use the Version Release Control on app updates. It is not available for the first version of your app since you already have the ability to control when your first version goes live, using the Availability Date setting within Rights and Pricing.
However what I'm trying to do is change the availability date before it has been released. My app was approved today and I'm trying to change the release date to Monday from Sunday. Is there any way to do this? This answer states that I can change my availability date but it's not clear how.
Anybody have any ideas on how to change the availability date within iTunes Connect?
You can do that in "Rights and Pricing".