<?php

function vmsTehranDate(){

    $tehran = new DateTimeZone("Asia/Tehran");

    $london = new DateTimeZone("Europe/London");

    $dateDiff = new DateTime("now", $london);

    $timeOffset = $tehran->getOffset($dateDiff);

    $newtime = time() + $timeOffset;

    return Date("H:i",$newtime);

}

?>

<?php

    echo vmsTehranDate();

?>