<script type="text/javascript">

​

var minutes = 1000 * 60

var hours = minutes * 60

var days = hours * 24

var years = days * 365

var t = Date.UTC(2005,7,8)

var y = t/years

document.write("It's been: " + y + " years from 1970/01/01")

document.write(" to 2005/07/08!")

​

</script>