Hi this is my second time going through this process. Unfortunately, I only applied to 3 schools last year and it clearly was not enough. Anyways, I found out about an interview last February. My first notification of rejection was mid to late March and went on until about April 20 because I was waiting to see if I got off the waitlist at one school. I would say just get in your apps as soon as possible because some schools may be rolling admission depending on where you're applying!