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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def set_date(date):
    '''
    Set the current month, day, and year

    :param str date: The date to set. Valid date formats are:

        - %m:%d:%y
        - %m:%d:%Y
        - %m/%d/%y
        - %m/%d/%Y

    :return: True if successful, False if not
    :rtype: bool

    :raises: SaltInvocationError on Invalid Date format
    :raises: CommandExecutionError on failure

    CLI Example:

    .. code-block:: bash

        salt '*' timezone.set_date 1/13/2016
    '''
    date_format = _get_date_time_format(date)
    dt_obj = datetime.strptime(date, date_format)

    cmd = 'systemsetup -setdate {0}'.format(dt_obj.strftime('%m:%d:%Y'))
    return salt.utils.mac_utils.execute_return_success(cmd)