diff --git a/app/src/docs/v1.api-spec.yaml b/app/src/docs/v1.api-spec.yaml
index beb9a560..47f140fe 100644
--- a/app/src/docs/v1.api-spec.yaml
+++ b/app/src/docs/v1.api-spec.yaml
@@ -778,6 +778,8 @@ paths:
         This endpoint does not guarantee immediately synchronized results.
         Synchronization latency will be affected by the remaining number of
         objects awaiting synchronization.
+        The `lastSyncedDate` attribute will be asynchronously updated when it
+        performs a successful synchronization with the S3 bucket
       tags:
         - Sync
       operationId: syncObject
diff --git a/app/src/services/object.js b/app/src/services/object.js
index 34461a8a..3b9c1735 100644
--- a/app/src/services/object.js
+++ b/app/src/services/object.js
@@ -218,6 +218,8 @@ const service = {
    * @param {string} data.path The relative S3 key/path of the object
    * @param {boolean} [data.public] The optional public flag - defaults to true if undefined
    * @param {boolean} [data.active] The optional active flag - defaults to true if undefined
+   * @param {string} [data.lastSyncedDate] The last time a sync request was made for the object.
+   * Should be left undefined if not part of a sync operation
    * @param {object} [etrx=undefined] An optional Objection Transaction object
    * @returns {Promise<object>} The result of running the patch operation
    * @throws The error encountered upon db transaction failure
@@ -232,7 +234,8 @@ const service = {
         path: data.path,
         public: data.public,
         active: data.active,
-        updatedBy: data.userId ?? SYSTEM_USER
+        updatedBy: data.userId ?? SYSTEM_USER,
+        lastSyncedDate: data.lastSyncedDate
       });
 
       if (!etrx) await trx.commit();
diff --git a/app/src/services/sync.js b/app/src/services/sync.js
index 655aa46a..82ef5d02 100644
--- a/app/src/services/sync.js
+++ b/app/src/services/sync.js
@@ -160,11 +160,19 @@ const service = {
         // Case: already synced - record & update public status as needed
         if (comsObject) {
           if (s3Public === undefined || s3Public === comsObject.public) {
-            response = comsObject;
+            response = await objectService.update({
+              id: comsObject.id,
+              userId: userId,
+              lastSyncedDate: new Date().toISOString()
+            }, trx);
           } else {
             response = await objectService.update({
-              id: comsObject.id, userId: userId, path: comsObject.path, public: s3Public
-            });
+              id: comsObject.id,
+              userId: userId,
+              path: comsObject.path,
+              public: s3Public,
+              lastSyncedDate: new Date().toISOString()
+            }, trx);
             modified = true;
           }
         }
@@ -179,7 +187,8 @@ const service = {
             path: path,
             public: s3Public,
             bucketId: bucketId,
-            userId: userId
+            userId: userId,
+            lastSyncedDate: new Date().toISOString()
           }, trx);
 
           modified = true;
diff --git a/app/tests/unit/services/object.spec.js b/app/tests/unit/services/object.spec.js
index e9d49a6b..f13fcdef 100644
--- a/app/tests/unit/services/object.spec.js
+++ b/app/tests/unit/services/object.spec.js
@@ -33,7 +33,8 @@ const data = {
   public: 'true',
   active: 'true',
   createdBy: SYSTEM_USER,
-  userId: SYSTEM_USER
+  userId: SYSTEM_USER,
+  lastSyncedDate: undefined
 };
 
 beforeEach(() => {
@@ -227,6 +228,7 @@ describe('read', () => {
 
 describe('update', () => {
   it('Update an object DB record', async () => {
+
     await service.update({ ...data });
 
     expect(ObjectModel.startTransaction).toHaveBeenCalledTimes(1);
@@ -236,7 +238,27 @@ describe('update', () => {
       path: data.path,
       public: data.public,
       active: data.active,
-      updatedBy: data.userId
+      updatedBy: data.userId,
+      lastSyncedDate: undefined
+    });
+    expect(objectModelTrx.commit).toHaveBeenCalledTimes(1);
+  });
+
+  it('Update an object DB record as part of a sync operation', async () => {
+
+    const testDateString = new Date('2024-01-01T00:00:00').toISOString();
+
+    await service.update({ ...data, lastSyncedDate: testDateString });
+
+    expect(ObjectModel.startTransaction).toHaveBeenCalledTimes(1);
+    expect(ObjectModel.query).toHaveBeenCalledTimes(1);
+    expect(ObjectModel.patchAndFetchById).toHaveBeenCalledTimes(1);
+    expect(ObjectModel.patchAndFetchById).toBeCalledWith(data.id, {
+      path: data.path,
+      public: data.public,
+      active: data.active,
+      updatedBy: data.userId,
+      lastSyncedDate: testDateString
     });
     expect(objectModelTrx.commit).toHaveBeenCalledTimes(1);
   });
diff --git a/app/tests/unit/services/sync.spec.js b/app/tests/unit/services/sync.spec.js
index 5008a8ef..8ff047df 100644
--- a/app/tests/unit/services/sync.spec.js
+++ b/app/tests/unit/services/sync.spec.js
@@ -1,3 +1,5 @@
+const { NIL: SYSTEM_USER } = require('uuid');
+
 const { resetModel, trxBuilder } = require('../../common/helper');
 const utils = require('../../../src/db/models/utils');
 const ObjectModel = require('../../../src/db/models/tables/objectModel');
@@ -371,7 +373,7 @@ describe('syncObject', () => {
     pruneOrphanedMetadataSpy.mockRestore();
     pruneOrphanedTagsSpy.mockRestore();
     searchObjectsSpy.mockRestore();
-    updateSpy.mockReset();
+    updateSpy.mockRestore();
   });
 
   it('should return object when already synced', async () => {
@@ -379,6 +381,7 @@ describe('syncObject', () => {
     headObjectSpy.mockResolvedValue({});
     searchObjectsSpy.mockResolvedValue({ total: 1, data: [comsObject] });
     getObjectPublicSpy.mockResolvedValue(true);
+    updateSpy.mockResolvedValue(comsObject);
 
     const result = await service.syncObject(path, bucketId);
 
@@ -405,7 +408,10 @@ describe('syncObject', () => {
       path: path, bucketId: bucketId
     }), expect.any(Object));
     expect(objectModelTrx.commit).toHaveBeenCalledTimes(1);
-    expect(updateSpy).toHaveBeenCalledTimes(0);
+    expect(updateSpy).toHaveBeenCalledTimes(1);
+    expect(updateSpy).toHaveBeenCalledWith(expect.objectContaining({
+      id: comsObject.id, lastSyncedDate: expect.anything()
+    }), expect.any(Object));
   });
 
   it('should return object when already synced but public mismatch', async () => {
@@ -442,8 +448,8 @@ describe('syncObject', () => {
     expect(objectModelTrx.commit).toHaveBeenCalledTimes(1);
     expect(updateSpy).toHaveBeenCalledTimes(1);
     expect(updateSpy).toHaveBeenCalledWith(expect.objectContaining({
-      id: validUuidv4, path: path, public: false
-    }));
+      id: validUuidv4, path: path, public: false, lastSyncedDate: expect.anything(), userId: SYSTEM_USER
+    }), expect.any(Object));
   });
 
   it('should return object when already synced but S3 ACL errors out', async () => {
@@ -451,6 +457,7 @@ describe('syncObject', () => {
     headObjectSpy.mockResolvedValue({});
     searchObjectsSpy.mockResolvedValue({ total: 1, data: [comsObject] });
     getObjectPublicSpy.mockImplementation(() => { throw new Error(); });
+    updateSpy.mockResolvedValue(comsObject);
 
     const result = await service.syncObject(path, bucketId);
 
@@ -477,7 +484,7 @@ describe('syncObject', () => {
       path: path, bucketId: bucketId
     }), expect.any(Object));
     expect(objectModelTrx.commit).toHaveBeenCalledTimes(1);
-    expect(updateSpy).toHaveBeenCalledTimes(0);
+    expect(updateSpy).toHaveBeenCalledTimes(1);
   });
 
   it('should insert new object when not in COMS', async () => {