diff --git a/airflow-core/src/airflow/dag_processing/manager.py b/airflow-core/src/airflow/dag_processing/manager.py
index d77503a588519..1be727b14846a 100644
--- a/airflow-core/src/airflow/dag_processing/manager.py
+++ b/airflow-core/src/airflow/dag_processing/manager.py
@@ -1244,10 +1244,10 @@ def process_parse_results(
             run_count=run_count + 1,
         )
 
-    # TODO: AIP-66 emit metrics
-    # file_name = Path(dag_file.path).stem
-    # Stats.timing(f"dag_processing.last_duration.{file_name}", stat.last_duration)
-    # Stats.timing("dag_processing.last_duration", stat.last_duration, tags={"file_name": file_name})
+    if relative_fileloc is not None and stat.last_duration is not None:
+        file_name = Path(relative_fileloc).stem
+        Stats.timing("dag_processing.last_duration", stat.last_duration, tags={"file_name": file_name})
+        Stats.timing(f"dag_processing.last_duration.{file_name}", stat.last_duration)
 
     if parsing_result is None:
         # No DAGs were parsed - this happens for callback-only processing
diff --git a/airflow-core/tests/unit/dag_processing/test_manager.py b/airflow-core/tests/unit/dag_processing/test_manager.py
index 4eab5a5f455f8..aa64b796851b6 100644
--- a/airflow-core/tests/unit/dag_processing/test_manager.py
+++ b/airflow-core/tests/unit/dag_processing/test_manager.py
@@ -767,7 +767,6 @@ def test_dag_with_system_exit(self, configure_testing_dag_bundle):
 
     @conf_vars({("core", "load_examples"): "False"})
     @mock.patch("airflow.dag_processing.manager.Stats.timing")
-    @pytest.mark.skip("AIP-66: stats are not implemented yet")
     def test_send_file_processing_statsd_timing(
         self, statsd_timing_mock, tmp_path, configure_testing_dag_bundle
     ):
@@ -784,7 +783,14 @@ def test_send_file_processing_statsd_timing(
             manager = DagFileProcessorManager(max_runs=1)
             manager.run()
 
-        last_runtime = manager._file_stats[os.fspath(path_to_parse)].last_duration
+        dag_file_info = next(
+            key
+            for key in manager._file_stats.keys()
+            if isinstance(key, DagFileInfo) and key.rel_path == Path("temp_dag.py")
+        )
+
+        last_runtime = manager._file_stats[dag_file_info].last_duration
+
         statsd_timing_mock.assert_has_calls(
             [
                 mock.call("dag_processing.last_duration.temp_dag", last_runtime),