Convert date to New Zealand date

To convert date to New Zealand date ;

               let date = new Date();
               let newzealandTime = format.format({ 
               value: new Date(),
               type: format.Type.DATETIME, 
               timezone: 'Pacific/Auckland' 
               });
               let newzealandTimeNew = new Date(newzealandTime.split(' ')[0]);
               let newNewzealandDate = generateDateString(newzealandTimeNew);
               log.debug("newNewzealandDate",newNewzealandDate);