Include complete time for Order Date

Yes, you can override Print-content.php and modify the date format there, or what I did is add the following to my Child functions.php file:

  
add_filter ( 'wcdn_order_info_fields', 'update_wcdn_order_date_value', 10 , 2  ) ;
function update_wcdn_order_date_value ( $values, $order ) {
	$wdn_order_id =  ( version_compare( get_option( 'woocommerce_version' ), '3.0.0', ">="  ) ) ? $order->get_id() : $order->id;
	$order_post = get_post( $wdn_order_id );
	$wdn_order_order_date =  ( version_compare( get_option( 'woocommerce_version' ), '3.0.0', ">="  ) ) ? $order_post->post_date : $order->order_date;
	$values['order_date'] = array( 
		'label' => __( 'Order Date', 'woocommerce-delivery-notes' ),
		'value' => date_i18n( __( 'l m/d/Y, h:ia', 'woocommerce' ), strtotime( $wdn_order_order_date ) )
	);
	return $values;
}  

Results looks like:
Order Date Thursday 09/05/2019, 03:56pm

There might be a better way of doing it, I am always open for making improvements.

Hello bigsavagepapa, I may have misunderstood your original question, sorry, and was thinking you wanted to display the Order Date with the time; however, now I am thinking you want the order “Completion” Date with time?

I do not have a ready answer, but it looks like you need to pull in and display _completed_date from the wp_postmeta for the given order id? The value for _completed_date on one of my completed orders looks like: 2019-10-28 09:23:56

Might be able to change the above code to include $order->completed_date; instead of $order->order_date; ??

You also might be able to use something like: $order->get_date_completed();

Perhaps plugin support can shed more light for a solution