That for, you have to apply the listview client script. so please check it.
Before:
After:
ListView Client Script:
frappe.listview_settings['Lead'] = {
refresh: function(listview) {
listview.$result.find(".frappe-timestamp").each(function() {
const timestamp = $(this).attr("data-timestamp");
if (timestamp) {
const formatted_date = frappe.datetime.str_to_user(frappe.datetime.convert_to_user_tz(timestamp).split(' ')[0]);
$(this).text(formatted_date);
}
});
}
};