diff --git a/build/service/CalendarExtractor.php b/build/service/CalendarExtractor.php
index 830f742..41eeed1 100644
--- a/build/service/CalendarExtractor.php
+++ b/build/service/CalendarExtractor.php
@@ -248,10 +248,10 @@
 			$tz_offset = +2;
 
 			/* (2) Get GMT (UTC+0) timestamp */
-			$ts = strtotime("${day} $hour:$min:00");
+			$ts = strtotime("${day} $hour:$min:00") - (3600*$tz_offset);
 
 			/* (3) Return GMT date */
-			return gmdate("Ymd\THis\Z", $ts);
+			return date("Ymd\THis\Z", $ts);
 
 		}