[SOLVED] Why is this showing the wrong date

[AdRock]

I have a function that converts todays date to "today", yesterdays date to "yesterday" and any other date is left normal

 

The problem is that it is showing todays  date as yesterday and yesterdays date is a normal date

 

here is the code

 

<?php 

function change_date($time) {

$today = strtotime(date('F d, Y, h:i:s A'));
$day = ($time - $today)/86400;

if ($day >= 0 && $day < 1) {
	return '<b>Today</b>'.date(', h:i:s A', $time ? $time : time());
} 
else if ($day >= -1 && $day < 0) {
	return '<b>Yesterday</b>'.date(', h:i:s A', $time ? $time : time());
}
else {
	return date('F d, Y, h:i:s A',$time ? $time : time());
}
}

//time stamp from my database etc
$my_timestamp = "2009-04-08 14:32:18";

//store the results of the function into $my_relative_time
$my_relative_time = change_date(strtotime($my_timestamp ));

//output
echo $my_relative_time ;
?>

 

[AdRock]

$today = strtotime(date('F d, Y, h:i:s A'));

 

should have been

 

$today = strtotime(date('F d, Y'));