Different datetime between api response and UI

This is a record of a Doctype: it appears in both the UI and API response when calling frappe.desk.form.getdoc?doctype="xxxxx" . I’m unsure why there is a datetime difference between them. I’ve set the timezone of the UI to Asia/Ho_Chi_Minh (GMT+7), but the database uses the default timezone, which is UTC (GMT+0).