marca de tiempo js
var timestamp = new Date().getTime();
GutoTrosla
var timestamp = new Date().getTime();const ts = () => Math.floor(new Date().getTime() / 1000);Math.floor(new Date() / 1000) // in secondsMath.floor(Date.now() / 1000)
var currentTimeInSeconds=Math.floor(Date.now()/1000); //unix timestamp in seconds
var currentTimeInMilliseconds=Date.now(); // unix timestamp in millisecondsnew Date().getTime()
new Date().valueOf()