Google Analytics Code to Sent Interative Event After 60 Seconds

analytics.js

<script type="text/javascript">
  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
  ga('create', 'UA-XXXXXXX-XX', 'XXXXXXXX.COM');
  ga('send', 'pageview');
  setTimeout(function(){ga('send', 'event', 'timeOnSite', '60Seconds', window.location.href, 1)}, 60000);
</script>