Judges and justices are permitted one 90-day extension. It appears Alito submitted his report July 23, and it took a month for the AO to release it.
"Though such a code would not automatically put a stop to every ethically murky action committed by the justices, over time it would encourage them to think twice before making political speeches to partisan organizations and further eroding the public's trust in their impartiality."
Missed recusals have marred the both National Labor Relations Board and the U.S. Supreme Court. But unlike SCOTUS, the NLRB has decided to do something about it.