Quote:
Originally Posted by chaingang_100
Why from January 1 1970???? and btw it's: 1216954622737ms
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I really don't know why god created it to start counting from that date 

If you can tell us, we would be very thankful 
And take this second example:
Code:
<script>
var minutes = 1000*60;
var hours = minutes*60;
var days = hours*24;
var years = days*365;
var d = new Date();
var t = d.getTime();
var y = t/years;
document.write("It's been: " + y + " years since 1970/01/01!");
</script>
This example will calculate the number of years since 1970/01/01 !