diff --git a/airflow-core/src/airflow/dag_processing/manager.py b/airflow-core/src/airflow/dag_processing/manager.py
index a07cb402ae4eb..9998f3fcc89ae 100644
--- a/airflow-core/src/airflow/dag_processing/manager.py
+++ b/airflow-core/src/airflow/dag_processing/manager.py
@@ -679,7 +679,7 @@ def _log_file_processing_stats(self, known_files: dict[str, set[DagFileInfo]]):
 
         rows = []
         utcnow = timezone.utcnow()
-        now = time.time()
+        now = time.monotonic()
 
         for files in known_files.values():
             for file in files:
@@ -806,7 +806,7 @@ def _collect_results(self, session: Session = NEW_SESSION):
 
             # Collect the DAGS and import errors into the DB, emit metrics etc.
             self._file_stats[file] = process_parse_results(
-                run_duration=time.time() - proc.start_time,
+                run_duration=time.monotonic() - proc.start_time,
                 finish_time=timezone.utcnow(),
                 run_count=self._file_stats[file].run_count,
                 bundle_name=file.bundle_name,