diff --git a/apps/jumpserver/api/dashboard.py b/apps/jumpserver/api/dashboard.py
index 1f6d2e216..3434be6cd 100644
--- a/apps/jumpserver/api/dashboard.py
+++ b/apps/jumpserver/api/dashboard.py
@@ -46,7 +46,7 @@ class DateTimeMixin:
         if days == 1:
             t = local_zero_hour()
         else:
-            t = local_now() - timezone.timedelta(days=days)
+            t = local_zero_hour() - timezone.timedelta(days=days)
         return t
 
     @lazyproperty