Hi @Gabriel_David , first please make sure time is enabled against the field in your web map.
If that is already the case and you still cannot see the time, please try updating the date format to a different format (dropdown shown in the screenshot above), and save web map, and refresh your app.
Finally, if you still cannot see the time, please try switching that Time checkbox on and off, click OK, and save the web map again. Then go into web appbuilder and refresh the Smart Editor configuration (open the configuration for the widget and hit save).
Please let me know if any of the workarounds resolved your issue.