Convert Unix Timestamp to Date

timestamp.js

let unix_timestamp = 1549312452;
let date = new Date(unix_timestamp * 1000);        
let hours = "0" + date.getHours();
let minutes = "0" + date.getMinutes();
let seconds = "0" + date.getSeconds();
let days = "0" + date.getDate();
let months = "0" + date.getMonth();
let years = date.getFullYear();        
let formattedTime = days.substr(-2) + '/' + months.substr(-2) + '/' + years + ' ' + hours.substr(-2) + ':' + minutes.substr(-2) + ':' + seconds.substr(-2);    
console.log(formattedTime);