Index: includes/api/ApiQuerySiteinfo.php
===================================================================
--- includes/api/ApiQuerySiteinfo.php	(revision 61408)
+++ includes/api/ApiQuerySiteinfo.php	(working copy)
@@ -154,6 +154,7 @@
 		$data['variantarticlepath'] = $GLOBALS['wgVariantArticlePath'];
 		$data['server'] = $GLOBALS['wgServer'];
 		$data['wikiid'] = wfWikiID();
+		$data['time'] = wfTimestamp( TS_ISO_8601, time() );
 
 		return $this->getResult()->addValue( 'query', $property, $data );
 	}