Opt extension expired. How much time Can I stay?

Hi,

My Opt extension has expired. My I-20 and Sevp portal shows last working day as June 1st 2019.(College extended this from May 12th to June 1st as I was waiting for my H1B result).
My question is as I get the 60 day grace period to exit the United States. Can I stay in USA till July 28?

Thanks.

Yes, you get standard 60 days F1 grace period to exit the country. Technically, you may stay, but do not cut it too close till the last 60th day, unless you have some compelling reason…