title: ics file DTEND time or timezone
body: <p>When I open my ics file on an android device, the DTSTART date is showing the right time, but the DTENDis showing the wrong time (+1 hour). When I open the ics directly on google calendar or outlook the DTEND date is correctly shown. Why doesn't this work??</p>
  
  <pre><code>BEGIN:VCALENDAR
  VERSION:1.0
  PRODID:TEST
  METHOD:REQUEST
  BEGIN:VEVENT
  UID: 20150217T011243-1175262756
  DTSTAMP: 20150217T011243
  DTSTART;TZID=Europe/Amsterdam:20150301T120000
  DTEND;TZID=Europe/Amsterdam:20150301T200000
  SUMMARY:Werken
  END:VEVENT
  END:VCALENDAR
  </code></pre>
  
  <p>N.B. If I remove the TZID from DTSTART and DTEND both start and endtime will show +1 hour.</p>