ช่วยแนะแนวทาง การแก้ไขหน่อยครับ เรื่องวันที่ กับ เวลา

<?

$day = $_POST["day"];
$month = $_POST["month"];
$year = $_POST["year"];
$day2 = $_POST["day2"];
$month2 = $_POST["month2"];
$year2 = $_POST["year2"];
$customer = $_POST["customer"];

$total = "$year-$month-$day";
$total2 ="$year2-$month2-$day2";

include "connect.php";
$sql = "SELECT * FROM linkdown WHERE date BETWEEN '$total' AND '$total2' ORDER BY date ASC, linkdowntime ASC ";
$result = mysql_db_query($dbname, $sql);

print("<center>");?>
<table border="1" style="font-family: MS Sans Serif; FONT-SIZE: 10px; border-color: #000000; border-width: 1px;">
<tr bgcolor=Silver align=center style = "font-weight: bold;">
<td>วันที่</td>
<td>Ticket ID</td>
<td>Circuit ID</td>
<td>ชื่อลูกค้า</td>
<td>สาขา</td>
<td>วงจรและความเร็ว</td>
<td>Link Down Time</td>
<td>Link Up Time</td>
<td>Down Time</td>
<td>เจ้าหน้าที่รับแจ้ง</td>
<td>ผู้แจ้ง</td>
<td>หมายเหตุ</td>
</tr>
<?

$customer2 = $customer;
while($record = mysql_fetch_assoc($result))
{

	$note = $record["customerid"];

	if($customer2 == "0")
	{
	$sql2 = "SELECT * FROM customer WHERE circuitid ='$note' ";
	}else{
	$sql2 = "SELECT * FROM customer WHERE circuitid ='$note' AND customer = '$customer' ";
	}

	$result2 = mysql_db_query($dbname, $sql2);

	while($record2 = mysql_fetch_assoc($result2))
	{

	$datea = $record["date"];
	$ticket = $record["ticketid"];
	$circuitid = $record["customerid"];
	$customer = $record2["customer"];
	$major = $record2["major"];
	$speed = $record2["speed"];
	$linkdown = $record["linkdowntime"];
	$linkup = $record["linkuptime"];

	$reciev = $record["recieverinfo"];
	$person = $record["personinfo"];
	$memo = $record["memo"];
    $time1 = "$linkup"; 
	$time2 = "$linkdown"; 
	$cal_time = date("U",mktime(date(substr($time1,0,2)-substr($time2,0,2)),date(substr($time1,3,2)-substr($time2,3,2)))); 
	$time3= date("H.i",$cal_time) ; 
		if($time3 >= "3")
			{$timelink = "<center><font color=red><B>$time3</B></font></center>";}else{
			$timelink = $time3;}
        if($time3 >= "3")
			{$date1 = "<center><font color=red><B>$datea</B></font></center>";}else{
			$date1 = $datea;}
        if($time3 >= "3")
			{$ticket1 = "<center><font color=red><B>$ticket</B></font></center>";}else{
			$ticket1 = $ticket;}
        if($time3 >= "3")
			{$circuitid1 = "<center><font color=red><B>$circuitid</B></font></center>";}else{
			$circuitid1 = $circuitid;}
        if($time3 >= "3")
			{$customer1 = "<center><font color=red><B>$customer</B></font></center>";}else{
			$customer1 = $customer;}
        if($time3 >= "3")
			{$major1 = "<center><font color=red><B>$major</B></font></center>";}else{
			$major1 = $major;}
        if($time3 >= "3")
			{$speed1 = "<center><font color=red><B>$speed</B></font></center>";}else{
			$speed1 = $speed;}
        if($time3 >= "3")
			{$linkdown1 = "<center><font color=red><B>$linkdown</B></font></center>";}else{
			$linkdown1 = $linkdown;}
         if($time3 >= "3")
			{$linkup1 = "<center><font color=red><B>$linkup</B></font></center>";}else{
			$linkup1 = $linkup;}
         if($time3 >= "3")
			{$reciev1 = "<center><font color=red><B>$reciev</B></font></center>";}else{
			$reciev1 = $reciev;}
         if($time3 >= "3")
			{$person1 = "<center><font color=red><B>$person</B></font></center>";}else{
			$person1 = $person;}
         if($time3 >= "3")
			{$memo1 = "<center><font color=red><B>$memo</B></font></center>";}else{
			$memo1 = $memo;}

	echo "<tr align=center>
	<td>$date1</td>
	<td>$ticket1</td>
	<td>$circuitid1</td>
	<td>$customer1</td>
	<td>$major1</td>
	<td>$speed1</td>
	<td>$linkdown1</td>
	<td>$linkup1</td>
	<td>$timelink</td>
	<td>$reciev1</td>
	<td>$person1</td>
	<td>$memo1</td>
	</tr>";
	}
}
print("</table></center>");
mysql_close();

?>