Description:
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there is problem with mktime. it caclulates badly seconds in pedroids 27-28 march in some years like 2005. Possibly some other pedroids are affected. this is just example to make bug search easier.

Reproduce code:
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<?
$a1 = mktime(0,0,0,3,27,2005);
$a2 = mktime(0,0,0,3,28,2005);
$w = ($a2 - $a1) / 60 / 60 / 24;
echo $w;

echo "<br>\n";

$a1 = mktime(0,0,0,3,27,2006);
$a2 = mktime(0,0,0,3,28,2006);
$w = ($a2 - $a1) / 60 / 60 / 24;
echo $w;

?>

Expected result:
----------------
1
1

Actual result:
--------------
will show:
0.95833333333333
1