diff --git a/admin/views/settings/costcenter/costcenter.html b/admin/views/settings/costcenter/costcenter.html
index 28b717ce..2853bacd 100644
--- a/admin/views/settings/costcenter/costcenter.html
+++ b/admin/views/settings/costcenter/costcenter.html
@@ -120,12 +120,11 @@
 												download="{{costfile.file_name}}">{{ costfile.file_name }}</a>
 										</td>
 										<td class="text-center">{{ costfile.status }}</td>
-										<td class="text-center">{{ costfile.upload_datetime | date:'yyyy-MM-dd HH:mm'}}</td>
-
+										<td class="text-center">{{ costfile.upload_datetime}}</td>
 										<td class="text-center">
 											<a ng-click="restoreCostFile(costfile)"
 												class="btn btn-danger btn-rounded btn-xs">{{'SETTING.RESTORE' | translate}}</a>
-											<a ng-click="deleteCostFile(costfile)" 
+											<a ng-click="deleteCostFile(costfile)"
 												class="btn btn-danger btn-rounded btn-xs" >{{'SETTING.DELETE' | translate}}</a>
 										</td>
 									</tr>
diff --git a/myems-api/README.md b/myems-api/README.md
index efeed06e..8390cb79 100644
--- a/myems-api/README.md
+++ b/myems-api/README.md
@@ -274,7 +274,7 @@ Result
 | id            | integer   | Cost File ID                     |
 | file_name     | string    | Cost File name                   |
 | uuid          | string    | Cost File UUID                   |
-| upload_datetime | float | the number of milliseconds since January 1, 1970, 00:00:00, universal time |
+| upload_datetime | string  | Upload Datetime in Local Timezone |
 | status        | string    | Cost File processing status (new, done, error)   |
 | file_object   | BLOB       | Cost File Object                 |
 
diff --git a/myems-api/core/costfile.py b/myems-api/core/costfile.py
index 02d710e0..9f85cfcf 100644
--- a/myems-api/core/costfile.py
+++ b/myems-api/core/costfile.py
@@ -3,7 +3,7 @@ import json
 import mysql.connector
 import config
 import uuid
-from datetime import datetime, timezone
+from datetime import datetime, timezone, timedelta
 import os
 from core.userlogger import user_logger
 
@@ -31,15 +31,18 @@ class CostFileCollection:
         cursor.close()
         cnx.disconnect()
 
+        timezone_offset = int(config.utc_offset[1:3]) * 60 + int(config.utc_offset[4:6])
+        if config.utc_offset[0] == '-':
+            timezone_offset = -timezone_offset
+
         result = list()
         if rows is not None and len(rows) > 0:
             for row in rows:
-                upload_datetime = row[3]
-                upload_datetime = upload_datetime.replace(tzinfo=timezone.utc)
+                upload_datetime_local = row[3].replace(tzinfo=timezone.utc) + timedelta(minutes=timezone_offset)
                 meta_result = {"id": row[0],
                                "file_name": row[1],
                                "uuid": row[2],
-                               "upload_datetime": upload_datetime.timestamp() * 1000,
+                               "upload_datetime": upload_datetime_local.strftime('%Y-%m-%dT%H:%M:%S'),
                                "status": row[4]}
                 result.append(meta_result)
 
@@ -172,14 +175,15 @@ class CostFileItem:
         if row is None:
             raise falcon.HTTPError(falcon.HTTP_404, title='API.NOT_FOUND',
                                    description='API.COST_FILE_NOT_FOUND')
+        timezone_offset = int(config.utc_offset[1:3]) * 60 + int(config.utc_offset[4:6])
+        if config.utc_offset[0] == '-':
+            timezone_offset = -timezone_offset
 
-        upload_datetime = row[3]
-        upload_datetime = upload_datetime.replace(tzinfo=timezone.utc)
-
+        upload_datetime_local = row[3].replace(tzinfo=timezone.utc) + timedelta(minutes=timezone_offset)
         result = {"id": row[0],
                   "file_name": row[1],
                   "uuid": row[2],
-                  "upload_datetime": upload_datetime.timestamp() * 1000,
+                  "upload_datetime": upload_datetime_local.strftime('%Y-%m-%dT%H:%M:%S'),
                   "status": row[4]}
         resp.body = json.dumps(result)