Get TIME_ZONE from TZ, do not get LANGUAGE_CODE

steering/settings.py

@@ -57,8 +57,8 @@ DATABASES = {
 }
 
 # LOCALIZATION
-TIME_ZONE = os.getenv("TIME_ZONE", default="Europe/Vienna")
-LANGUAGE_CODE = os.getenv("LANGUAGE_CODE", default="de")
+TIME_ZONE = os.getenv("TZ", default="Europe/Vienna")
+LANGUAGE_CODE = "de"
 USE_I18N = True
 USE_L10N = True