diff --git a/shared.php b/shared.php
index 056843d..0fedd59 100644
--- a/shared.php
+++ b/shared.php
@@ -29,6 +29,7 @@
 	
 	$blogDirs = array("2017");
 
+	date_default_timezone_set('Europe/Berlin');
 
 	function opted_in($identifier) {
 		global $optin;