diff --git a/B3ClientService/OfflinRpc/GradeAndWeightBL.cs b/B3ClientService/OfflinRpc/GradeAndWeightBL.cs
index 7e7e745..26a8c64 100644
--- a/B3ClientService/OfflinRpc/GradeAndWeightBL.cs
+++ b/B3ClientService/OfflinRpc/GradeAndWeightBL.cs
@@ -66,7 +66,7 @@ namespace BWP.B3ClientService.BL
         return;
 
       if (infos.Item2.HasValue)
-        Update(infos.Item1, new GradeAndWeight_Detail(), session);
+        Update(infos.Item1, new GradeAndWeight_Detail() { Time = DateTime.Now }, session);
       else
         Delete(infos.Item1, session);
     }