PHP. MSSQL DATETIME в UNIX TIMESTAMP.

Пробовал выставлять часовой пояс, но strtotime так и не заработал, пришлось написать функцию:

$textime = 'Apr 30 2011 09:47:08:580AM';

echo date('r', datetimeToTimestamp($texttime));

//Sat, 30 Apr 2011 09:47:08 +0300

function datetimeToTimestamp($texttime) 
{
    if (! $texttime || $texttime == '') return null;

    list($month, $day, $year, $time) = explode(' ', $texttime);
    list($hour, $minute, $second) = explode(':', $time);
        
    $month = date('m', strtotime($month));

    return mktime($hour, $minute, $second, $month, $day, $year);
}