时区错误的ic文件

我的。ics-file在Google Cal中没有显示正确的时区。在iCal和iPhone &iPad上显示的。我真看不出有什么不对!

时区必须设置为Copenhagen-time:)

<?php
date_default_timezone_set('Europe/Copenhagen');
include("includes/db_connect.php");
$schedules = "BEGIN:VCALENDAR
VERSION:2.0
METHOD:PUBLISH
PRODID:HG Kalender";   
$schedules .= "-//Drupal iCal API//EN";
$result=mysql_query("SELECT * FROM `x`");
while($rows=mysql_fetch_array($result)){
$overskrift = $rows['overskrift'];
$date = $rows['date'];
$month = $rows['month'];
$year = $rows['year'];
$start_hour = $rows['start_hour'];
$start_minute = $rows['start_minute'];
$end_hour = $rows['end_hour'];
$end_minute = $rows['end_minute'];
$end_place = $rows['end_place'];
$start_place = $rows['start_place'];
$info = $rows['info'];
$idets = $rows['id'];
$ics_dato = $year.$month.$date;
$start_hour = $start_hour;
$end_hour = $end_hour;
$ics_starttidspunkt = $start_hour.$start_minute."00";
$ics_sluttidspunkt = $end_hour.$end_minute."00";
    $schedules .= "'nBEGIN:VEVENT";
    $schedules .= "'nUID:" . time().rand(11111, 99999);
    $schedules .= "'nDTSTAMP:" . date("Y-m-d H:i:s");
    $schedules .= "'nDTSTART:" . date("$ics_dato", $strDate)."T".date("$ics_starttidspunkt");
    $schedules .= "'nLOCATION:".$start_place;
    $schedules .= "'nDTEND:". date("$ics_dato",$endDate)."T".date("$ics_sluttidspunkt");
    $schedules .= "'nSUMMARY:".$overskrift;
    $schedules .= "'nURL:x.com;
    $schedules .= "'nDESCRIPTION:text;
    $schedules .= "'nEND:VEVENT";   
    }
$schedules .= "'nEND:VCALENDAR";
header( "Content-type: text/calendar");
header("Expires: 0");
file_put_contents("x.ics",$schedules);
?>

BEGIN:VCALENDAR
VERSION:2.0
METHOD:PUBLISH
PRODID:HG Kalender-//Drupal iCal API//EN
BEGIN:VEVENT
UID:136869502441928
DTSTAMP:2013-05-16 11:03:44
DTSTART:20130622T100000
LOCATION:Holbæk Stadion
DTEND:20130622T160000
SUMMARY:Tattootræning
URL:x.com
DESCRIPTION:text
END:VEVENT
END:VCALENDAR

谢谢!:)