Auto update order status to complete after 24 hours from booking end - woocommerce

Question

I've a site based on wordpress. I'm using wc vendor plugin, woocommerce bookings and wc vendors for woocommerce bookings. I need the status of each order to automatically change to "complete" (wc-completed) 24 hours after the end of each rental (indicated with _booking_end as meta value in the database). I need the function to run once a day at 1pm. I wrote this code in my theme's functions.php file, but it doesn't work. Can you tell me if there are any errors and how can I correct them? Thank you
// Funzione per impostare gli ordini come completati se sono passate 24 ore dal booking_end
function imposta_ordine_completo() {
global $wpdb;
$orders = $wpdb->get_results(
"SELECT * FROM {$wpdb->prefix}posts WHERE post_type = 'shop_order' AND post_status = 'wc-processing'"
);
$count = 0;
// Loop through each order
foreach ( $orders as $order ) {
$order_id = $order->ID;
$booking_end = get_post_meta( $order_id, '_booking_end', true );
if ( $booking_end ) {
$current_time = current_time( 'timestamp' );
$booking_end_timestamp = strtotime( $booking_end );
$time_difference = $current_time - $booking_end_timestamp;
if ( $time_difference >= 86400 ) { // 24 hours in seconds
$order = wc_get_order( $order_id );
if ( $order && $order->get_status() === 'wc-processing' ) {
$order->update_status( 'completed' );
$count++;
}
}
}
}
error_log( "La funzione imposta_ordine_completo è stata eseguita. Sono stati completati $count ordini." );
}
// Registro il cron job che avvia la funzione ogni 24 ore
add_action( 'init', 'register_imposta_ordine_completo_event' );
function register_imposta_ordine_completo_event() {
if ( ! wp_next_scheduled( 'imposta_ordine_completo_event' ) ) {
wp_schedule_event( strtotime( '13:00:00' ), 'daily', 'imposta_ordine_completo_event' );
}
}
// Aggiungo l'hook che chiama la funzione
add_action( 'imposta_ordine_completo_event', 'imposta_ordine_completo' );
I had no results with this code