Last day for futures options

When do options on the e-mini S&P 500 expire? Is it 4:15PM on Friday, or is it first tick tomorrow morning like regular index options?

 

I just called Globex. They don't even know when options on their own exchange expire?????????????????????

 

Typical response from a large company. Their customer representatives usually have no clue.

 

Option contracts are cash settled to the final special opening quotation for the associated index.