Four to four and a half hours, and Arizona is the only state in our coverage that caps the course from above: Supreme Court program rules set a minimum of 4 hours and a maximum of 4.5, excluding breaks and registration. Nobody can sell you a padded 8-hour Arizona diversion course, because one isn't allowed to exist.
That makes Arizona's trade the steepest in the country in the driver's favor: the shortest mandatory sit anywhere, exchanged for the biggest prize anywhere, complete dismissal of the citation with no points and nothing reported to insurers. Four and a half hours against roughly three thousand dollars of avoided insurance exposure is the arithmetic; there's no version of being too busy for it that survives contact with that number.
The hours themselves are schedulable online with saved progress, certified schools transmit your completion to the court electronically within 24 hours of finishing, and the only clock that can beat you is the one outside the course: everything must be done at least 7 days before your court date. Count back seven days from the date on your citation paperwork, then subtract your own procrastination honestly, and start.
Every Arizona Supreme Court-certified online school we track is compared on the Arizona page, and the full diversion mechanics are on our points page.