Put this where u want time displayed (Preferably at bottom of page)
<?php
function getmicrotime()
{
list($usec, $sec) = explode(" ",microtime());
return ((float)$usec + (float)$sec);
}
$time_start = getmicrotime();
for ($i=0; $i <1000; $i++)
{ }
$time_end = getmicrotime();
$time = $time_end - $time_start;
$time = round($time,4);
echo "Page loaded in $time seconds";
?>