How to add TimeStamp in wordpress like facebook and twitter?

How to add TimeStamp in wordpress like facebook and twitter?


Simply copy and paste this code to use time stamp in wordpress
you can also customize this time stamp code according to your need


<?php
$days = round((date('U') - get_the_time('U')) / (60*60*24));
if ($days==0) {
echo "Posted today";
}
elseif ($days==1) {
echo "Posted yesterday";
}
elseif ($days<8) {
echo "Posted " . $days . " days ago";
}
elseif($days<30)
{
$week = $days/7;
echo "Posted " . round($week) . " weeks ago";
}
else
{
$Month = $days/30;
echo "Posted " . round($Month) . " months ago";
}
?>