php mysql date formats. GOING CRAZY!! PLS HELP!

[lyax]

$timestamp= mysql_query("SELECT UNIX_TIMESTAMP(timestamp) FROM utopia WHERE kullaniciadi='$session->username'");
$hedef = mktime(date("H"),date("i")+1,date("s"),date("m"),date("d"),date("Y"));
$simdi = time ();
$fark = $timestamp - $simdi;
$days_left = floor($fark/60/60/24);
$hours_left = floor(($fark - $days_left*60*60*24)/60/60);
$minutes_left = floor(($fark - $days_left*60*60*24 - $hours_left*60*60)/60);
print " $minutes_left dakika!";


if($row['bolge'] !== 'yol' ){
$result = mysql_query("UPDATE utopia SET timestamp=FROM_UNIXTIME($hedef) , bolge='yol' WHERE kullaniciadi='$session->username'") 
or die(mysql_error());  
echo "Centriaya seyahatiniz $minutes_left dakika sürecek.";
}
else{
}

if($fark > 0){
echo " $minutes_left dakika beklemelisin.";
}
elseif($fark <= 0){
$result = mysql_query("UPDATE utopia SET bolge='centria' WHERE kullaniciadi='$session->username'") 
or die(mysql_error());
echo " Geçmiş olsun."; 
}
else{
}

it can simply be seen what i tried to do but several big FALSES around here  i now.

adding 3 minutes to current time and saving into mysql..

according to the difference between that time and the current time print x minutes last.

so simple to write it:-) aaa, and i have some problem about time formats.. date time and mysql time.. i dont know how to save and how to read it, actually dont know if it is necessary in this page????

pls help.. im so bored for about 5 hours here!