diff --git a/pipeline/engine/utils.py b/pipeline/engine/utils.py
index d9696d8c8a..63153e6773 100644
--- a/pipeline/engine/utils.py
+++ b/pipeline/engine/utils.py
@@ -47,9 +47,9 @@ def calculate_elapsed_time(started_time, archived_time):
     """
     if archived_time and started_time:
         # when status_tree['archived_time'] == status_tree['started_time'], set elapsed_time to 1s
-        elapsed_time = (archived_time - started_time).seconds or 1
+        elapsed_time = (archived_time - started_time).total_seconds() or 1
     elif started_time:
-        elapsed_time = (timezone.now() - started_time).seconds
+        elapsed_time = (timezone.now() - started_time).total_seconds()
     else:
         elapsed_time = 0
     return elapsed_time
diff --git a/pipeline/tests/engine/utils/test_utils_func.py b/pipeline/tests/engine/utils/test_utils_func.py
new file mode 100644
index 0000000000..cfe1c282fa
--- /dev/null
+++ b/pipeline/tests/engine/utils/test_utils_func.py
@@ -0,0 +1,55 @@
+# -*- coding: utf-8 -*-
+"""
+Tencent is pleased to support the open source community by making 蓝鲸智云PaaS平台社区版 (BlueKing PaaS Community
+Edition) available.
+Copyright (C) 2017-2019 THL A29 Limited, a Tencent company. All rights reserved.
+Licensed under the MIT License (the "License"); you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+http://opensource.org/licenses/MIT
+Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
+an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
+specific language governing permissions and limitations under the License.
+"""
+
+import datetime
+
+from django.test import TestCase
+from django.utils import timezone
+
+from pipeline.engine.utils import calculate_elapsed_time
+
+
+class EngineUtilsFuncTestCase(TestCase):
+
+    def test_calculate_elapsed_time(self):
+        self.assertEqual(calculate_elapsed_time(None, None), 0)
+
+        self.assertEqual(calculate_elapsed_time(started_time=None, archived_time=timezone.now()), 0)
+
+        self.assertNotEqual(calculate_elapsed_time(started_time=timezone.now() - datetime.timedelta(seconds=1),
+                                                   archived_time=None),
+                            0)
+
+        # seconds
+        start = timezone.now()
+        archive = start + datetime.timedelta(seconds=59)
+
+        self.assertEqual(calculate_elapsed_time(started_time=start, archived_time=archive), 59)
+
+        # minutes
+        start = timezone.now()
+        archive = start + datetime.timedelta(minutes=3)
+
+        self.assertEqual(calculate_elapsed_time(started_time=start, archived_time=archive), 3 * 60)
+
+        # hours
+        start = timezone.now()
+        archive = start + datetime.timedelta(hours=3)
+
+        self.assertEqual(calculate_elapsed_time(started_time=start, archived_time=archive), 3 * 60 * 60)
+
+        # days
+        start = timezone.now()
+        archive = start + datetime.timedelta(days=3)
+
+        self.assertEqual(calculate_elapsed_time(started_time=start, archived_time=archive), 3 * 24 * 60 * 60)