[CalendarServer-users] calendar-query timezone confusion

[Mark Cockfield]

Greetings,

I think I am missing something.

I have set the America/Detroit timezone on the calendar collection.
I have an event in the CalendarServer created with iCal:

> BEGIN:VCALENDAR
> VERSION:2.0
> PRODID:-//Apple Inc.//iCal 3.0//EN
> CALSCALE:GREGORIAN
> BEGIN:VTIMEZONE
> TZID:America/Detroit
> BEGIN:DAYLIGHT
> TZOFFSETFROM:-0500
> TZOFFSETTO:-0400
> DTSTART:20070311T020000
> RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU
> TZNAME:EDT
> END:DAYLIGHT
> BEGIN:STANDARD
> TZOFFSETFROM:-0400
> TZOFFSETTO:-0500
> DTSTART:20071104T020000
> RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU
> TZNAME:EST
> END:STANDARD
> END:VTIMEZONE
> BEGIN:VEVENT
> SEQUENCE:3
> TRANSP:OPAQUE
> UID:9D7A5B23-B956-49E7-B1AE-90155506531D
> DTSTART;TZID=America/Detroit:20081113T110000
> DTSTAMP:20081109T193054Z
> SUMMARY:Another Event
> CREATED:20081109T193030Z
> DTEND;TZID=America/Detroit:20081113T120000
> END:VEVENT
> END:VCALENDAR

I am doing a calendar-query REPORT:

>       <C:calendar-query xmlns:C="urn:ietf:params:xml:ns:caldav"
> xmlns:D="DAV:">  
>           <D:prop>
>               <C:calendar-data>
>                   <C:expand start="20081101T000000Z" end="20090301T000000Z"/>
>                   <C:comp name="VCALENDAR">
>                       <C:allprop />
>                       <C:allcomp />
>                   </C:comp>
>               </C:calendar-data>
>           </D:prop>
>           <C:filter>
>               <C:comp-filter name="VCALENDAR">
>                   <C:comp-filter name="VEVENT">
>                       <C:time-range start="20081101T000000Z"
> end="20090301T000000Z"/>
>                   </C:comp-filter>
>               </C:comp-filter>
>           </C:filter>
>           <C:timezone>
>             <![CDATA[BEGIN:VCALENDAR
> VERSION:2.0 
> PRODID:-//ABC Corp//ABC App 0.1//EN
> BEGIN:VTIMEZONE  
> TZID:America/Detroit
> BEGIN:DAYLIGHT   
> TZOFFSETFROM:-0500
> TZOFFSETTO:-0400 
> DTSTART:20070311T020000
> RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU
> TZNAME:EDT 
> END:DAYLIGHT     
> BEGIN:STANDARD 
> TZOFFSETFROM:-0400
> TZOFFSETTO:-0500 
> DTSTART:20071104T020000
> RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU
> TZNAME:EST 
> END:STANDARD     
> END:VTIMEZONE 
> END:VCALENDAR    
> ]]>           
>           </C:timezone>
>       </C:calendar-query>

Yet the response has the start and end times being specified in UTC time
even though they also specify a TZID:
        
>       <multistatus xmlns="DAV:">
>           <response>
>               <href>
> /calendars/__uids__/abc/calendar/9D7A5B23-B956-49E7-B1AE-90155506531D.ics
>               </href>
>               <propstat>
>                   <prop>
>                       <calendar-data xmlns="urn:ietf:params:xml:ns:caldav">
>                         <![CDATA[BEGIN:VCALENDAR
> VERSION:2.0 
> CALSCALE:GREGORIAN
> PRODID:-//Apple Inc.//iCal 3.0//EN
> BEGIN:VEVENT     
> UID:9D7A5B23-B956-49E7-B1AE-90155506531D
> DTSTART;TZID=America/Detroit:20081113T160000Z
> DTEND;TZID=America/Detroit:20081113T170000Z
> CREATED:20081109T193030Z
> DTSTAMP:20081109T193054Z
> SEQUENCE:3 
> SUMMARY:Another Event
> TRANSP:OPAQUE    
> END:VEVENT 
> END:VCALENDAR    
> ]]>              
>                       </calendar-data>
>                   </prop>
>                   <status>
>                     HTTP/1.1 200 OK
>                   </status>
>               </propstat>
>           </response>
>       </multistatus>

This is not the behavior I was expecting.

I think I am missing something but I am unable to see the forest for the
trees. Any insight would be appreciated.

Regards,

Mark 
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