Arizona House Bill 2484 moves the primary from the 10th Tuesday before the general election to the 11th Tuesday. On February 20 it passed the House Rules Committee. If this bill had been in effect in 2016, the primary (for all office but president) would have been August 23, not August 30.
If the bill becomes law, the petition deadlines for newly-qualifying parties, and for non-presidential independent candidates, would become one week earlier.