best way to convert timestamp javascri[t code example

Example 1: unix time to date javascript

const unixTime = 1210981217;
const date = new Date(unixTime*1000);
console.log(date.toLocaleDateString("en-US"));
//expected: "5/16/2008"

Example 2: convert timestamp to date js

var date = new Date("2016-07-27T07:45:00Z");
However, you can run into trouble when you do not provide the timezone explicitly!