function tl($tl){
    $d=3600*24;
    $day=floor($tl/$d);
    $tl=$tl-($d*$day);

    $hour=floor($tl/3600);
    $tl=$tl-(3600*$hour);

    $minute=floor($tl/60);
    $tl=$tl-(60*$minute);

    $second=floor($tl);

    $dayt="".($day>0?"$day д. ":null)."";
    $hourt="".($hour>0?"$hour ч. ":null)."";
    $minutet="".($minute>0?"$minute м. ":null)."";
    $secondt="".($second>0?"$second с. ":null)."";

    if($day>0){
        $minutet=NULL;
        $secondt=NULL;
    }
    if($hour>0 && $day==0){
        $secondt=NULL;
        $dayt=NULL;
    }

    return "$dayt$hourt$minutet$secondt";
} /* Вывод оставшегося времени */