diff --git a/WelsonJS.Toolkit/WelsonJS.Esent/README.md b/WelsonJS.Toolkit/WelsonJS.Esent/README.md
index e3327d3..a64e8ac 100644
--- a/WelsonJS.Toolkit/WelsonJS.Esent/README.md
+++ b/WelsonJS.Toolkit/WelsonJS.Esent/README.md
@@ -42,7 +42,7 @@ foreach (var instance in instances)
     {
         string instanceId = instance["InstanceId"].ToString();
         string firstDeployTime = instance.ContainsKey("FirstDeployTime")
-            ? ((DateTime)instance["FirstDeployTime"]).ToString(_dateTimeFormat)
+            ? ((DateTime)instance["FirstDeployTime"]).ToString("yyyy-MM-dd HH:mm:ss")
             : "Unknown";
 
         Console.WriteLine($"{firstDeployTime}, {instanceId}");
diff --git a/WelsonJS.Toolkit/WelsonJS.Esent/WelsonJS - Backup.Esent.csproj b/WelsonJS.Toolkit/WelsonJS.Esent/WelsonJS - Backup.Esent.csproj
deleted file mode 100644
index e8ee38a..0000000
--- a/WelsonJS.Toolkit/WelsonJS.Esent/WelsonJS - Backup.Esent.csproj	
+++ /dev/null
@@ -1,39 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-  <PropertyGroup>
-    <TargetFramework>netstandard2.0</TargetFramework>
-    <Platforms>AnyCPU;x86</Platforms>
-    <Title>WelsonJS.Esent</Title>
-    <PackageProjectUrl>https://github.com/gnh1201/welsonjs</PackageProjectUrl>
-    <RepositoryUrl>https://github.com/gnh1201/welsonjs</RepositoryUrl>
-    <RepositoryType>git</RepositoryType>
-    <PackageTags>nosql,esent,database</PackageTags>
-    <AssemblyVersion>0.2.7.55</AssemblyVersion>
-    <FileVersion>0.2.7.55</FileVersion>
-    <PackageLicenseExpression>MIT</PackageLicenseExpression>
-    <Copyright>2025 Namhyeon Go, Catswords OSS and WelsonJS Contributors</Copyright>
-    <Description>Enable ESENT database engine</Description>
-    <GeneratePackageOnBuild>True</GeneratePackageOnBuild>
-    <Authors>Namhyeon Go,Catswords OSS</Authors>
-    <PackageIcon></PackageIcon>
-    <PackageReadmeFile></PackageReadmeFile>
-  </PropertyGroup>
-
-  <ItemGroup>
-    <ProjectReference Include="..\EsentInterop\EsentInterop.csproj" />
-  </ItemGroup>
-
-  <ItemGroup>
-    <None Update="assets\docs\README.md">
-      <Pack>True</Pack>
-      <PackagePath>\</PackagePath>
-      <CopyToOutputDirectory>Never</CopyToOutputDirectory>
-    </None>
-    <None Update="assets\img\logo.png">
-      <Pack>True</Pack>
-      <PackagePath>\</PackagePath>
-      <CopyToOutputDirectory>Never</CopyToOutputDirectory>
-    </None>
-  </ItemGroup>
-
-</Project>
diff --git a/WelsonJS.Toolkit/WelsonJS.Esent/assets/docs/README.md b/WelsonJS.Toolkit/WelsonJS.Esent/assets/docs/README.md
index e3327d3..a64e8ac 100644
--- a/WelsonJS.Toolkit/WelsonJS.Esent/assets/docs/README.md
+++ b/WelsonJS.Toolkit/WelsonJS.Esent/assets/docs/README.md
@@ -42,7 +42,7 @@ foreach (var instance in instances)
     {
         string instanceId = instance["InstanceId"].ToString();
         string firstDeployTime = instance.ContainsKey("FirstDeployTime")
-            ? ((DateTime)instance["FirstDeployTime"]).ToString(_dateTimeFormat)
+            ? ((DateTime)instance["FirstDeployTime"]).ToString("yyyy-MM-dd HH:mm:ss")
             : "Unknown";
 
         Console.WriteLine($"{firstDeployTime}, {instanceId}");