docs: @Override
      public long getServerTimeZoneOffset () throws SmbException {
          try ( SmbSessionImpl session = this.treeConnection.getSession();
                SmbTransportImpl transport = session.getTransport() ) {
              SmbNegotiationResponse nego = transport.getNegotiateResponse();
              if ( nego instanceof SmbComNegotiateResponse ) {
                  return ( (SmbComNegotiateResponse) nego ).getServerData().serverTimeZone * 1000 * 60L;
              }
              return 0;
          }
      }