diff --git a/QueryPage.xaml.cs b/QueryPage.xaml.cs
index 09abe0a..1ea4336 100644
--- a/QueryPage.xaml.cs
+++ b/QueryPage.xaml.cs
@@ -128,9 +128,10 @@ public partial class QueryPage : ContentPage
         QueryDictionary.Add("Field", "[Dyelot],[ReDye],[Program],[Color],[CreationTime]," +
             "[Batch],[OrderNo],[TotalWeight],[LiquidRatio],[TotalVolume],[Final],[UserAccount]," +
             "[FabricName],[ColorName],[CustomerName],[Notes]");
-        QueryDictionary.Add("StartTime", StartTime.Date.ToString()!);
+        DateTime StartTimee_ = (DateTime)StartTime.Date!;
+        QueryDictionary.Add("StartTime", StartTimee_.ToString("yyyy-MM-dd"));
         DateTime EndTime_ = (DateTime)EndTime.Date!;
-        QueryDictionary.Add("EndTime", EndTime_.AddDays(1).ToString());
+        QueryDictionary.Add("EndTime", EndTime_.AddDays(1).ToString("yyyy-MM-dd"));
         Query_Command(QueryDictionary.ToJsonString());
     }