Minecraft Lifetime

<!DOCTYPE html>

<html lang="en">
<head>
<meta charset="utf-8">
<title>Minecraft :: Date Difference</title>
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<style>
body {
  font-family : Tahoma, Arial, Sans-serif;
  font-size : 9pt;
}
</style>
<script>
function dateDiff() {

  var d1 = new Date(2009, 4, 17, 12, 0, 0, 0);
  var d2 = new Date();

  // 1 real time day = 72 Minecraft days
  var delta = 72 * Math.floor((d2 - d1) / (1000*60*60*24));
  document.getElementById('diff').innerHTML = delta;

}
</script>
</head>
<body onload="dateDiff()">
<div>Minecraft days passed since creation: <span id="diff">&nbsp;</span></div>
</body>
</html>