diff --git a/oj/settings.py b/oj/settings.py
index 27fdf8b..87816f6 100644
--- a/oj/settings.py
+++ b/oj/settings.py
@@ -113,13 +113,9 @@ AUTH_PASSWORD_VALIDATORS = [
 # Internationalization
 # https://docs.djangoproject.com/en/1.8/topics/i18n/
 
-LANGUAGE_CODE = "en-us"
+LANGUAGE_CODE = "zh-cn"
 
-TIME_ZONE = "UTC"
-
-USE_I18N = True
-
-USE_L10N = True
+TIME_ZONE = "Asia/Shanghai"
 
 USE_TZ = True