Opportunity Zone Fund Question

[Raza Rizvi]

Hello investors, I heard that QOF were getting an extension due to Covid. I had the following question to determine if I am still within the window to take advantage of deferring my taxes or not. I still haven't filed my 2020 taxes and have an extension till October 

Date I sold my stocks September 2020

QOF created : 10/28/20

I plan to invest the cash in real estate. I have identified the property to invest in but was wondering if it was too late. Can someone shed light on this?