title: AWS Lambda request timestamp format changed
body: <p>AWS Lambda event request timestamp format changed while testing it from Alexa skill. </p>
  
  <p><strong>this.event.request.timestamp</strong></p>
  
  <p>Earlier it was "2017-07-15T14:38:48Z" and now it is "1500139534627" while testing it from Alexa Skill.</p>
  
  <p>Even it is showing proper timestamp "2017-07-15T14:38:48Z" when tested from Amazon ECHO device.</p>