update-order-date.php

<?php

/**
* Altera o status do de cuncluido para enviado
*/
add_action('admin_post_update_processing_orders', 'nerdstore_update_processing_orders');
function nerdstore_update_processing_orders() {

	echo '<pre>';

	global $wpdb;

	$processing_orders = $wpdb->get_col("
		SELECT posts.ID
		FROM {$wpdb->posts} AS posts
		WHERE posts.post_status = 'wc-processing'"
	);

	print_r(count($processing_orders) . ' pedidos.');

	echo "\n";

	if ($processing_orders) {
		foreach ($processing_orders as $order) {
			$order = wc_get_order($order);

			$order_date_modified = $order->get_date_created();
		
			$date = new DateTime($order_date_modified);

			$date->add(DateInterval::createFromDateString('1 minute'));

			$order->set_date_created($date->getTimestamp());
			$order->save();

			die('pedido: ' . $order->get_id() . ' atualizado.');
		}
	}
}