diff --git a/addons/mail/static/src/views/web/activity/activity_cell.js b/addons/mail/static/src/views/web/activity/activity_cell.js
index 99e7ca4a0ae..832d033348b 100644
--- a/addons/mail/static/src/views/web/activity/activity_cell.js
+++ b/addons/mail/static/src/views/web/activity/activity_cell.js
@@ -34,7 +34,7 @@ export class ActivityCell extends Component {
                 month: "short",
             });
         } else {
-            return date.toLocaleDateString({
+            return date.toLocaleString({
                 day: "numeric",
                 month: "short",
                 year: "numeric",