title: Running APScheduler Job Every nth Day of Month
body: <p>I'm looking for an APScheduler trigger that will execute a job every nth day of a month. For example, I want to run a job on the first Tuesday of every month. Or on the first and third Monday of every month.</p>
  
  <p>Does anyone have a trigger that accomplishes this? You can <em>almost</em> do it with the cron scheduler and having your function double-check that it's running at the right time: <a href="https://stackoverflow.com/questions/16498505/cron-job-to-run-every-first-or-last-chosen-day-of-week-of-every-month">Cron job to run every first or last chosen day of week of every month</a></p>