def epilog():
    """
    Returns epilog text for CLI help

    :return: string
    """
    epilog_text = """
    Time format options:
    yyyy (2016),
    yyyy-mm (2016-01),
    yyyy-mm-dd (2016-01-01),
    yyyymmdd (20160101),
    yyyymmddThh (20160101T12),
    yyyy-mm-ddThh:mm:ss-hh:mm (2016-01-01T00:00:00-00:00)
    """
    return epilog_text
