Added default timezone check

index.php

@@ -21,6 +21,9 @@ $config = load_config('config.json');
 if (($config_local = load_config('config.local.json', true)) !== null)
     $config = array_merge_recursive($config, $config_local);
 
+if (isset($config['default_timezone']))
+    date_default_timezone_set($config['default_timezone']);
+
 define('ROOT_URL', $config['root_url']);
 
 $view = new Slim\Latte\LatteView(array(