diff --git a/api/db/services/langfuse_service.py b/api/db/services/langfuse_service.py
index af4233bec..b571110ab 100644
--- a/api/db/services/langfuse_service.py
+++ b/api/db/services/langfuse_service.py
@@ -64,10 +64,13 @@ class TenantLangfuseService(CommonService):
 
     @classmethod
     def save(cls, **kwargs):
-        kwargs["create_time"] = current_timestamp()
-        kwargs["create_date"] = datetime_format(datetime.now())
-        kwargs["update_time"] = current_timestamp()
-        kwargs["update_date"] = datetime_format(datetime.now())
+        current_ts = current_timestamp()
+        current_date = datetime_format(datetime.now())
+
+        kwargs["create_time"] = current_ts
+        kwargs["create_date"] = current_date
+        kwargs["update_time"] = current_ts
+        kwargs["update_date"] = current_date
         obj = cls.model.create(**kwargs)
         return obj
 
diff --git a/api/db/services/pipeline_operation_log_service.py b/api/db/services/pipeline_operation_log_service.py
index 6858751eb..9846d79c1 100644
--- a/api/db/services/pipeline_operation_log_service.py
+++ b/api/db/services/pipeline_operation_log_service.py
@@ -170,11 +170,11 @@ class PipelineOperationLogService(CommonService):
             avatar=avatar,
         )
         timestamp = current_timestamp()
-        datetime_now = datetime.now()
+        datetime_now = datetime_format(datetime.now())
         log["create_time"] = timestamp
-        log["create_date"] = datetime_format(datetime_now)
+        log["create_date"] = datetime_now
         log["update_time"] = timestamp
-        log["update_date"] = datetime_format(datetime_now)
+        log["update_date"] = datetime_now
         with DB.atomic():
             obj = cls.save(**log)
 
diff --git a/api/db/services/search_service.py b/api/db/services/search_service.py
index 1c7687b54..7366a9708 100644
--- a/api/db/services/search_service.py
+++ b/api/db/services/search_service.py
@@ -28,10 +28,13 @@ class SearchService(CommonService):
 
     @classmethod
     def save(cls, **kwargs):
-        kwargs["create_time"] = current_timestamp()
-        kwargs["create_date"] = datetime_format(datetime.now())
-        kwargs["update_time"] = current_timestamp()
-        kwargs["update_date"] = datetime_format(datetime.now())
+        current_ts = current_timestamp()
+        current_date = datetime_format(datetime.now())
+
+        kwargs["create_time"] = current_ts
+        kwargs["create_date"] = current_date
+        kwargs["update_time"] = current_ts
+        kwargs["update_date"] = current_date
         obj = cls.model.create(**kwargs)
         return obj
 
diff --git a/api/db/services/user_service.py b/api/db/services/user_service.py
index b5e754dbd..c065d91d7 100644
--- a/api/db/services/user_service.py
+++ b/api/db/services/user_service.py
@@ -116,10 +116,13 @@ class UserService(CommonService):
             kwargs["password"] = generate_password_hash(
                 str(kwargs["password"]))
 
-        kwargs["create_time"] = current_timestamp()
-        kwargs["create_date"] = datetime_format(datetime.now())
-        kwargs["update_time"] = current_timestamp()
-        kwargs["update_date"] = datetime_format(datetime.now())
+        current_ts = current_timestamp()
+        current_date = datetime_format(datetime.now())
+
+        kwargs["create_time"] = current_ts
+        kwargs["create_date"] = current_date
+        kwargs["update_time"] = current_ts
+        kwargs["update_date"] = current_date
         obj = cls.model(**kwargs).save(force_insert=True)
         return obj