EC2 EGA Retirement Notification period

Hello, I have read https://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/elastic-graphics-maintenance.html and am looking for additional information. What is the minimum amount of notice I will be given that an Elastic Graphics accelerator has been scheduled for retirement? For example, if I am only given two minutes notice that is obviously not enough time for me to make sure my workload can be shifted to another instance with another accelerator. I hope that the minimum is at least 36 hours. I plan to use these accelerators for live event video streaming so I need to know that my instances won't break in the middle of a live event. Thank you.