Description:
------------
Converting dates using variant_date_from_timestamp() loses 2 hours. 
Might be some timezone-like thing but then again: variant_date_to_timestamp() does give a precise translation.

I'm running apache 2 with php 5.0.0 RC 2. I tried both CGI and through apache.

Reproduce code:
---------------
<?

$nu = date('Ymd');
echo "now: $nu\n";

$timestamp = mktime( 0, 0, 0, date('m'), date('d'), date('Y') );   // Ymd = 2004 07 19
echo "now timestamp: $timestamp\n";

echo "a.k.a. : ".$timestamp." = ".date('Ymd', $timestamp )."\n";

$variant = variant_date_from_timestamp( $timestamp );
//$variant = variant_date_from_timestamp( time() );

echo "variant: ".$variant."\n";

$var_timestamp = variant_date_to_timestamp( $variant );
echo "and back again: ".$var_timestamp." = ".date('Ymd', $var_timestamp )."\n";

?>

Expected result:
----------------
now: 20040719
now timestamp: 1090188000
a.k.a. : 1090188000 = 20040719
variant: 19-7-2004 0:00:00
and back again: 1090188000 = 20040719


Actual result:
--------------
now: 20040719
now timestamp: 1090188000
a.k.a. : 1090188000 = 20040719
variant: 18-7-2004 22:00:00
and back again: 1090180800 = 20040718

// 2 hours gone! And even worse: The date changed!