public void setPreferredBackupWindow(String preferredBackupWindow) {
        this.preferredBackupWindow = preferredBackupWindow;
    }
<p>
The daily time range during which automated backups are created.
</p>
<p>
Not applicable. The daily time range for creating automated backups is managed by the DB cluster. For more
information, see <a>CreateDBCluster</a>.
</p>

@param preferredBackupWindow
       The daily time range during which automated backups are created.</p>
       <p>
       Not applicable. The daily time range for creating automated backups is managed by the DB cluster. For more
       information, see <a>CreateDBCluster</a>.
aws-java-sdk-neptune/src/main/java/com/amazonaws/services/neptune/model/CreateDBInstanceRequest.java