Convert UTC unix timestamp into user local datetime using user local timezone
$ npm install --save user-timezone
import * as usertz from 'user-timezone';
// Convert unix timestamp into date time format
const unixTimeStamp = 1555923762;
const dateTimeFormat = 'MMMM Do, YYYY h:mm ss A';
const datetime = usertz.datetime(unixTimeStamp,dateTimeFormat);
console.log(datetime);
// April 22nd, 2019 2:32 42 PM
// Get user local time zone
const timezone = usertz.getTimeZone();
console.log(timezone);
// Asia/Calcutta
For more datetime display format please refer Momentjs Docs