Index: src/wp-includes/ms-functions.php
===================================================================
--- src/wp-includes/ms-functions.php	(revision 40901)
+++ src/wp-includes/ms-functions.php	(working copy)
@@ -1368,7 +1368,7 @@
 	$path = trailingslashit($path);
 	$site_id = (int) $site_id;
 
-	$result = $wpdb->insert( $wpdb->blogs, array('site_id' => $site_id, 'domain' => $domain, 'path' => $path, 'registered' => current_time('mysql')) );
+	$result = $wpdb->insert( $wpdb->blogs, array('site_id' => $site_id, 'domain' => $domain, 'path' => $path, 'registered' => current_time( 'mysql', true ) ) );
 	if ( ! $result )
 		return false;