diff --git a/packages/backend/src/serializers/permission.js b/packages/backend/src/serializers/permission.js
index b68868c9..07b82020 100644
--- a/packages/backend/src/serializers/permission.js
+++ b/packages/backend/src/serializers/permission.js
@@ -5,8 +5,8 @@ const permissionSerializer = (permission) => {
     action: permission.action,
     subject: permission.subject,
     conditions: permission.conditions,
-    createdAt: permission.createdAt,
-    updatedAt: permission.updatedAt,
+    createdAt: permission.createdAt.getTime(),
+    updatedAt: permission.updatedAt.getTime(),
   };
 };
 
diff --git a/packages/backend/src/serializers/permission.test.js b/packages/backend/src/serializers/permission.test.js
index 19636842..9fff7f61 100644
--- a/packages/backend/src/serializers/permission.test.js
+++ b/packages/backend/src/serializers/permission.test.js
@@ -16,8 +16,8 @@ describe('permissionSerializer', () => {
       action: permission.action,
       subject: permission.subject,
       conditions: permission.conditions,
-      createdAt: permission.createdAt,
-      updatedAt: permission.updatedAt,
+      createdAt: permission.createdAt.getTime(),
+      updatedAt: permission.updatedAt.getTime(),
     };
 
     expect(permissionSerializer(permission)).toEqual(expectedPayload);
diff --git a/packages/backend/src/serializers/role.js b/packages/backend/src/serializers/role.js
index cc3be89c..9cbf0246 100644
--- a/packages/backend/src/serializers/role.js
+++ b/packages/backend/src/serializers/role.js
@@ -6,8 +6,8 @@ const roleSerializer = (role) => {
     name: role.name,
     key: role.key,
     description: role.description,
-    createdAt: role.createdAt,
-    updatedAt: role.updatedAt,
+    createdAt: role.createdAt.getTime(),
+    updatedAt: role.updatedAt.getTime(),
     isAdmin: role.isAdmin,
   };
 
diff --git a/packages/backend/src/serializers/role.test.js b/packages/backend/src/serializers/role.test.js
index 85f239ec..b2929019 100644
--- a/packages/backend/src/serializers/role.test.js
+++ b/packages/backend/src/serializers/role.test.js
@@ -29,8 +29,8 @@ describe('roleSerializer', () => {
       name: role.name,
       key: role.key,
       description: role.description,
-      createdAt: role.createdAt,
-      updatedAt: role.updatedAt,
+      createdAt: role.createdAt.getTime(),
+      updatedAt: role.updatedAt.getTime(),
       isAdmin: role.isAdmin,
     };
 
diff --git a/packages/backend/src/serializers/user.js b/packages/backend/src/serializers/user.js
index 676ca562..4fed507f 100644
--- a/packages/backend/src/serializers/user.js
+++ b/packages/backend/src/serializers/user.js
@@ -6,8 +6,8 @@ const userSerializer = (user) => {
   let userData = {
     id: user.id,
     email: user.email,
-    createdAt: user.createdAt,
-    updatedAt: user.updatedAt,
+    createdAt: user.createdAt.getTime(),
+    updatedAt: user.updatedAt.getTime(),
     fullName: user.fullName,
   };
 
diff --git a/packages/backend/src/serializers/user.test.js b/packages/backend/src/serializers/user.test.js
index 8369bb60..7a80cb9a 100644
--- a/packages/backend/src/serializers/user.test.js
+++ b/packages/backend/src/serializers/user.test.js
@@ -31,11 +31,11 @@ describe('userSerializer', () => {
     vi.spyOn(appConfig, 'isCloud', 'get').mockReturnValue(false);
 
     const expectedPayload = {
-      createdAt: user.createdAt,
+      createdAt: user.createdAt.getTime(),
       email: user.email,
       fullName: user.fullName,
       id: user.id,
-      updatedAt: user.updatedAt,
+      updatedAt: user.updatedAt.getTime(),
     };
 
     expect(userSerializer(user)).toEqual(expectedPayload);
@@ -67,7 +67,7 @@ describe('userSerializer', () => {
   it('should return user data with trial expiry date', async () => {
     vi.spyOn(appConfig, 'isCloud', 'get').mockReturnValue(true);
 
-    await user.$query().patch({
+    await user.$query().patchAndFetch({
       trialExpiryDate: DateTime.now().plus({ days: 30 }).toISODate(),
     });
 
diff --git a/packages/backend/test/mocks/rest/api/v1/admin/roles/get-role.ee.js b/packages/backend/test/mocks/rest/api/v1/admin/roles/get-role.ee.js
index ae1505de..05942763 100644
--- a/packages/backend/test/mocks/rest/api/v1/admin/roles/get-role.ee.js
+++ b/packages/backend/test/mocks/rest/api/v1/admin/roles/get-role.ee.js
@@ -5,16 +5,16 @@ const getRoleMock = async (role, permissions) => {
     name: role.name,
     isAdmin: role.isAdmin,
     description: role.description,
-    createdAt: role.createdAt.toISOString(),
-    updatedAt: role.updatedAt.toISOString(),
+    createdAt: role.createdAt.getTime(),
+    updatedAt: role.updatedAt.getTime(),
     permissions: permissions.map((permission) => ({
       id: permission.id,
       action: permission.action,
       conditions: permission.conditions,
       roleId: permission.roleId,
       subject: permission.subject,
-      createdAt: permission.createdAt.toISOString(),
-      updatedAt: permission.updatedAt.toISOString(),
+      createdAt: permission.createdAt.getTime(),
+      updatedAt: permission.updatedAt.getTime(),
     })),
   };
 
diff --git a/packages/backend/test/mocks/rest/api/v1/admin/roles/get-roles.ee.js b/packages/backend/test/mocks/rest/api/v1/admin/roles/get-roles.ee.js
index f92a24e2..fdb7a05b 100644
--- a/packages/backend/test/mocks/rest/api/v1/admin/roles/get-roles.ee.js
+++ b/packages/backend/test/mocks/rest/api/v1/admin/roles/get-roles.ee.js
@@ -6,8 +6,8 @@ const getRolesMock = async (roles) => {
       name: role.name,
       isAdmin: role.isAdmin,
       description: role.description,
-      createdAt: role.createdAt.toISOString(),
-      updatedAt: role.updatedAt.toISOString(),
+      createdAt: role.createdAt.getTime(),
+      updatedAt: role.updatedAt.getTime(),
     };
   });
 
diff --git a/packages/backend/test/mocks/rest/api/v1/admin/users/get-user.js b/packages/backend/test/mocks/rest/api/v1/admin/users/get-user.js
index d3b5a0f8..d917f16f 100644
--- a/packages/backend/test/mocks/rest/api/v1/admin/users/get-user.js
+++ b/packages/backend/test/mocks/rest/api/v1/admin/users/get-user.js
@@ -1,21 +1,21 @@
 const getUserMock = (currentUser, role) => {
   return {
     data: {
-      createdAt: currentUser.createdAt.toISOString(),
+      createdAt: currentUser.createdAt.getTime(),
       email: currentUser.email,
       fullName: currentUser.fullName,
       id: currentUser.id,
       role: {
-        createdAt: role.createdAt.toISOString(),
+        createdAt: role.createdAt.getTime(),
         description: null,
         id: role.id,
         isAdmin: role.isAdmin,
         key: role.key,
         name: role.name,
-        updatedAt: role.updatedAt.toISOString(),
+        updatedAt: role.updatedAt.getTime(),
       },
       trialExpiryDate: currentUser.trialExpiryDate.toISOString(),
-      updatedAt: currentUser.updatedAt.toISOString(),
+      updatedAt: currentUser.updatedAt.getTime(),
     },
     meta: {
       count: 1,
diff --git a/packages/backend/test/mocks/rest/api/v1/admin/users/get-users.js b/packages/backend/test/mocks/rest/api/v1/admin/users/get-users.js
index 26336e20..0ae51773 100644
--- a/packages/backend/test/mocks/rest/api/v1/admin/users/get-users.js
+++ b/packages/backend/test/mocks/rest/api/v1/admin/users/get-users.js
@@ -3,23 +3,23 @@ const getUsersMock = async (users, roles) => {
     const role = roles.find((r) => r.id === user.roleId);
 
     return {
-      createdAt: user.createdAt.toISOString(),
+      createdAt: user.createdAt.getTime(),
       email: user.email,
       fullName: user.fullName,
       id: user.id,
       role: role
         ? {
-            createdAt: role.createdAt.toISOString(),
+            createdAt: role.createdAt.getTime(),
             description: role.description,
             id: role.id,
             isAdmin: role.isAdmin,
             key: role.key,
             name: role.name,
-            updatedAt: role.updatedAt.toISOString(),
+            updatedAt: role.updatedAt.getTime(),
           }
         : null,
       trialExpiryDate: user.trialExpiryDate.toISOString(),
-      updatedAt: user.updatedAt.toISOString(),
+      updatedAt: user.updatedAt.getTime(),
     };
   });
 
diff --git a/packages/backend/test/mocks/rest/api/v1/users/get-current-user.js b/packages/backend/test/mocks/rest/api/v1/users/get-current-user.js
index 91eb5e8d..f498e0d1 100644
--- a/packages/backend/test/mocks/rest/api/v1/users/get-current-user.js
+++ b/packages/backend/test/mocks/rest/api/v1/users/get-current-user.js
@@ -1,22 +1,22 @@
 const getCurrentUserMock = (currentUser, role) => {
   return {
     data: {
-      createdAt: currentUser.createdAt.toISOString(),
+      createdAt: currentUser.createdAt.getTime(),
       email: currentUser.email,
       fullName: currentUser.fullName,
       id: currentUser.id,
       permissions: [],
       role: {
-        createdAt: role.createdAt.toISOString(),
+        createdAt: role.createdAt.getTime(),
         description: null,
         id: role.id,
         isAdmin: role.isAdmin,
         key: role.key,
         name: role.name,
-        updatedAt: role.updatedAt.toISOString(),
+        updatedAt: role.updatedAt.getTime(),
       },
       trialExpiryDate: currentUser.trialExpiryDate.toISOString(),
-      updatedAt: currentUser.updatedAt.toISOString(),
+      updatedAt: currentUser.updatedAt.getTime(),
     },
     meta: {
       count: 1,