strtotime comparing returns error

See more:

PHP

Hi guys... i just want to ask why is it that my strtotime comparing is not working? or not comparing my 2 dates? here is my code

$newdate= strtotime ( '+1 minutes' , strtotime ($_COOKIE['adstime'] ));
$dateNow= strtotime($_POST["time"]);
   if($dateNow > $newdate){
        return "yes its greater";
    }else{
         return "no - " . $newdate . " - " . ($dateNow > $newdate) . " - " .$dateNow ;		   

    }

As you can see im just comparing the $newdate and the $dateNow and it return false
so i tried to echo the output using this code

return "no - " . $newdate . " - " . ($dateNow > $newdate) . " - " .$dateNow ;

But the output is just

no - 1328770759 -  - 1328741009

its not executing the date comparing... please help and any idea guys...