def get_cron_strings(job):
    """Returns cron strings.
    :param Job job: An apscheduler.job.Job instance.
    :return: cron strings
    :rtype: dict
    """
    return {
        'month': str(job.trigger.fields[1]),
        'day': str(job.trigger.fields[2]),
        'week': str(job.trigger.fields[3]),
        'day_of_week': str(job.trigger.fields[4]),
        'hour': str(job.trigger.fields[5]),
        'minute': str(job.trigger.fields[6])}