<html>

<head>
<title>What's my Timezone Offset</title>
<style>
#offset {
  font-size: 2em;
}

</style>
</head>
<body>
<h1>You are <span id='offset'></span> hours relative to UTC.</h1>

<script>
var offset = -(new Date()).getTimezoneOffset() / 60;
document.getElementById("offset").textContent = offset;

</script>
<script>
  (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),
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  ga('create', 'UA-596929-8', 'auto');
  ga('send', 'pageview');

</script>
</body>
</html>


<html>

<head>
<title>What's my Timezone Offset</title>
<style>
#offset {
  font-size: 2em;
}

</style>
</head>
<body>
<h1>You are <span id='offset'></span> hours relative to UTC.</h1>

<script>
var offset = -(new Date()).getTimezoneOffset() / 60;
document.getElementById("offset").textContent = offset;

</script>
<script>
  (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-596929-8', 'auto');
  ga('require', 'displayfeatures');
  ga('send', 'pageview');
</script>
</body>
</html>


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Add demographic tracking to ga
