code: def after_third_friday(day=None):
      
      day = day if day is not None else datetime.datetime.now()
      now = day.replace(day=1, hour=16, minute=0, second=0, microsecond=0)
      now += relativedelta.relativedelta(weeks=2, weekday=relativedelta.FR)
      return day > now
docs: check if day is after month's 3rd friday