public String getTimeZone() {
    if (zoneId == null) {
      zoneId = ZoneId.systemDefault();
    }
    return zoneId.toString();
  }
ConnectionTimeout and SocketTimeout. Unit: ms. If not set, default value 0 will be used, which
means that there's no timeout in the client side.
iotdb-client/jdbc/src/main/java/org/apache/iotdb/jdbc/IoTDBConnection.java