array(
    'type'  => 'datetime-range',
    'attr'  => array( 'class' => 'custom-class', 'data-foo' => 'bar' ),
    'label' => __('Label', '{domain}'),
    'desc'  => __('Description', '{domain}'),
    'help'  => __('Help tip', '{domain}'),
    'datetime-pickers' => array(
    'from' => array(
        'minDate' => '1970/01/01', // By default minimum date will be current day, set a date in the datetime format.
        'maxDate' => '2038/01/19', // By default there is not maximum date , set a date in the datetime format.
        'format'  => 'Y/m/d H:i',  // Format datetime.
        'timepicker'  => true,     // Show timepicker.
        'datepicker'  => true,     // Show datepicker.
        ),
    'to' => array(
        'minDate' => '1970/01/01', // By default minimum date will be current day, set a date in the datetime format.
        'maxDate' => '2038/01/19', // By default there is not maximum date , set a date in the datetime format.
        'format'  => 'Y/m/d H:i',  // Format datetime.
        'timepicker'  => true,     // Show timepicker.
        'datepicker'  => true,     // Show datepicker.
        )
    ),
    'value' => array(
        'from' => '',
        'to' => ''
    )
)