diff --git a/openhab.conf b/openhab.conf
index f7e2372..d70c85d 100644
--- a/openhab.conf
+++ b/openhab.conf
@@ -18,3 +18,8 @@
 OPENHAB_OSGI_BIND=127.0.0.1
 OPENHAB_OSGI_PORT=5555
 
+# timezone
+TZ=Europe/Berlin
+
+# language
+OPENHAB_LANG=de_DE