diff --git a/php/classes/FilesMgr.php b/php/classes/FilesMgr.php
index 96533e9..2acd042 100644
--- a/php/classes/FilesMgr.php
+++ b/php/classes/FilesMgr.php
@@ -435,6 +435,7 @@ class FilesMgr extends AmdaObjectMgr
 	protected function reformatTime($timeFormat, $timeLength, $doy) 
 	{                   
 		$formatLength = $timeLength == 'auto' ? strlen($timeFormat) + (strpos($timeFormat,"Y") !== false)*3 + (strpos($timeFormat,"y") !== false)
+                        + (strpos($timeFormat,"z") !== false)*2
 						+ (strpos($timeFormat,"M") !== false)*2  + (strpos($timeFormat,"m") !== false)
 						+ (strpos($timeFormat,"d") !== false) + (strpos($timeFormat,"H") !== false)
 						+ (strpos($timeFormat,"i") !== false) + (strpos($timeFormat,"s") !== false) 
@@ -471,6 +472,7 @@ class FilesMgr extends AmdaObjectMgr
 							if (!$date) 
 							{
 								if (strpos($oneLine,'#') === 0)  fwrite($newfile, $oneLine.PHP_EOL);
+								else return false;
 							}
 							else 
 							{
@@ -484,7 +486,7 @@ class FilesMgr extends AmdaObjectMgr
 						}
 						catch (Exception $e) 
 						{		  			  
-							// fwrite($newfile,$line.PHP_EOL);			   
+							return false;		   
 						}               	       
 					} 
 					else 
--
libgit2 0.21.2