node js unix timestamp

var s = new Date(1504095567183).toLocaleDateString("en-US")
// expected output "8/30/2017"  
console.log(s);Math.floor(new Date() / 1000) // in secondsMath.floor(+new Date() / 1000)
function getUnixTime() {
  return (Date.now() / 1000) | 0;  
}