diff --git a/my_tiny_service/api/routers/root.py b/my_tiny_service/api/routers/root.py
index 598433d..01418ec 100644
--- a/my_tiny_service/api/routers/root.py
+++ b/my_tiny_service/api/routers/root.py
@@ -1,3 +1,6 @@
+from datetime import datetime
+from datetime import datetime
+from datetime import datetime
 import fastapi
 
 from my_tiny_service.api.dependencies import get_api_settings
@@ -19,3 +22,14 @@ def get_root(
     not matter.
     """
     return f"{api_settings.title}, version {api_settings.version}"
+
+
+@router.get("/timestamp")
+def get_current_timestamp() -> str:
+    """Endpoint to return the current timestamp in ISO format."""
+    return datetime.now().isoformat()
+
+@router.get("/timestamp", summary="Get current timestamp in ISO format")
+def get_timestamp() -> str:
+    """Get the current timestamp in ISO format."""
+    return datetime.now().isoformat()
diff --git a/tests/test_api.py b/tests/test_api.py
index faf1b23..73df1d0 100644
--- a/tests/test_api.py
+++ b/tests/test_api.py
@@ -50,3 +50,17 @@ def test_divide_by_zero(client: starlette.testclient.TestClient) -> None:
 
     # THEN the status code should be 400 (Bad request)
     assert response.status_code == 400
+
+
+def test_timestamp_endpoint(client: starlette.testclient.TestClient) -> None:
+    """Test that the timestamp endpoint returns the current timestamp in ISO format."""
+    response = client.get("/timestamp")
+    assert response.status_code == 200
+    # The response should be a valid ISO format timestamp
+    # This is a basic check, in a real scenario, more robust validation would be needed
+    assert "T" in response.json()
+
+def test_get_timestamp(client: starlette.testclient.TestClient) -> None:
+    response = client.get("/timestamp")
+    assert response.status_code == 200
+    # Additional checks can be added to validate the timestamp format