?
It is up to each institution to determine when ED decisions are released. I’ve seen on some institution-specific threads on CC where applicants have been notified of the date.
It depends upon the college but most of them release the decisions during mid-December for ED1 and some during early December.
Just email your college asking about the admission notification date for ED. But all ED1 decisions will be out by mid-December (before the RD deadlines).