diff --git a/seatable_api/date_utils.py b/seatable_api/date_utils.py
index a1cdfb9..621c6db 100644
--- a/seatable_api/date_utils.py
+++ b/seatable_api/date_utils.py
@@ -226,6 +226,13 @@ def between(cls, start, end, include_last=False):
 
 class DateUtils(object):
 
+    @classmethod
+    def utcnow(cls):
+        now = datetime.datetime.now()
+        utc_timezone = datetime.timezone.utc
+        isoformat_timestr = now.astimezone(utc_timezone).isoformat()
+        return isoformat_timestr
+
     def _isoformat(self, d, format_str="%Y-%m-%d"):
         if not isinstance(d, (datetime.date, datetime.datetime)):
             raise ValueError('datetime type error')
diff --git a/seatable_api/main.py b/seatable_api/main.py
index ad15867..3a1adff 100644
--- a/seatable_api/main.py
+++ b/seatable_api/main.py
@@ -15,6 +15,7 @@
 from .socket_io import SocketIO
 from .query import QuerySet
 from .utils import convert_db_rows
+from .date_utils import dateutils
 
 
 def parse_headers(token):
@@ -1005,7 +1006,8 @@ def upload_bytes_file(self, name, content: bytes, relative_path=None, file_type=
             'type': file_type,
             'size': d.get('size'),
             'name': d.get('name'),
-            'url': url
+            'url': url,
+            'upload_time': dateutils.utcnow()
         }
 
     @check_auth
@@ -1050,7 +1052,8 @@ def upload_local_file(self, file_path, name=None, relative_path=None, file_type=
             'type': file_type,
             'size': d.get('size'),
             'name': d.get('name'),
-            'url': url
+            'url': url,
+            'upload_time': dateutils.utcnow()
         }
 
     @check_auth