JSFiddle - React, Tailwind, and code Playground

by Adrian Mejias

HTML

<div id="timestamp">0</div>

JavaScript

var selectedDate = new Date();
var currentDate = selectedDate;
var currentTime = currentDate.getTime();
var localOffset = (-1) * selectedDate.getTimezoneOffset() * 60000;
var stamp = Math.round(new Date(currentTime + localOffset).getTime() / 1000);
var origin = new Date(1970, 1, 1, 0, 0, 0, 0);
origin += stamp;
document.getElementById('timestamp').innerHTML = origin;