<?php
$h1 = "03";	// Hours
$m1 = "45";	// Minutes
$s1 = "13";	// Seconds
$m1 = "07";	// Month
$d1 = "16";	// Day
$y1 = "2004";	// Year
 
$date1 = mktime($h1,$m1,$s1,$m1,$d1,$y1); // Returns UNIX timestamp
 
$diff = (time() - $date1); // Difference in seconds between now and then
 
$day    = floor($diff/86400);
$hour   = floor(($diff%86400)/3600);
$min    = floor(($diff%3600)/60);
$sec    = ($diff % 60);
 
if ($day == "1") echo "$day day "; 	elseif ($day > 1) echo "$day days ";
if ($hour == "1") echo "$hour hour "; 	elseif ($hour > 1) echo "$hour hours ";
if ($min == "1") echo "$min minute "; 	elseif ($min > 1) echo "$min minutes ";
if ($sec == "1") echo " $sec second "; 	elseif ($sec > 1) echo " $sec seconds ";
 
echo "ago";
?>