Copy and paste following code in functions.php of your child theme.
function custom_date_compare($a, $b){
$d1 = $a['date'].$a['time'];
$d2 = $b['date'].$b['time'];
$t1 = strtotime($d1);
$t2 = strtotime($d2);
return $t1 - $t2;
}
function custom_wpcargo_history_order_callback( $history_records ){
if( is_array( $history_records ) ){
// Sort history by date and time
usort( $history_records, 'custom_date_compare');
//To sort shipment history latest to old record
$history_records = array_reverse( $history_records );
}
// return now the history record
return $history_records;
}
add_filter( 'wpcargo_history_order', 'custom_wpcargo_history_order_callback' );