Order created time difference - php

Question

I found that code here and I'm wondering how can I add example: if order created time > order created time + 5 minutes?
Now code just check today datetime and order created datetime and make datediff, but I want to make time diff.
If someone can help me, thanks already!
function myplugin_cancel_unpaid_wc_orders() {
global $myplugin_options;
$my_cancel_time = $myplugin_options['myplugin_cancel_time'];
//$date = date( "Y-m-d H:i:s", strtotime( '-' . absint( $myplugin_cancel_time ) . ' MINUTES', current_time( 'timestamp' ) ) );
$query = ( array(
'limit' => 5,
'orderby' => 'date',
'order' => 'DESC',
'status' => array( 'pending' )
) );
$orders = wc_get_orders( $query );
foreach ( $orders as $order ) {
$date = new DateTime( $order->get_date_created() );
$today = new DateTime();
$interval = $date->diff($today);
$datediff = $interval->format('%a');
if ( $datediff >= 4 ) {
$order->update_status('cancelled', 'Cancelled for missing payment');
}
}
}

Answer 1

Convert the order created date to seconds. 5 minutes equal 300 seconds.
$order_created_date = $order->get_date_created(); // Get order date created WC_DateTime Object
$order_created_seconds = $order_created_date->getTimestamp(); // Get order create date in seconds
$end_time = $order_created_seconds+300; // Order created time + 5mins
$current_time = time();
if ($current_time >= $end_time) { // Check if end time
$order->update_status('cancelled', 'Cancelled for missing payment');
}