Ticket #2537: mysql2date-U-gmt.diff

wp-includes/functions.php

@@ -23 +23 @@
         }
         $i = mktime(substr($m,11,2),substr($m,14,2),substr($m,17,2),substr($m,5,2),substr($m,8,2),substr($m,0,4));
 
+        if( 'U' == $dateformatstring )
+                return $i;
+        
         if ( -1 == $i || false == $i )
                 $i = 0;