diff --git a/siteroot/settings/base.py b/siteroot/settings/base.py
index 641471f..6c3a705 100644
--- a/siteroot/settings/base.py
+++ b/siteroot/settings/base.py
@@ -114,7 +114,7 @@ LOGOUT_REDIRECT_URL = "/" + LD_CONTEXT_PATH + "login"
 
 LANGUAGE_CODE = "en-us"
 
-TIME_ZONE = "UTC"
+TIME_ZONE = os.getenv("TZ", "UTC")
 
 USE_I18N = True