[Tickets #12773] Re: Thunderbird lightning caldav serial event time failure with summer/wintertime change

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Ticket URL: http://bugs.horde.org/ticket/12773
------------------------------------------------------------------------------
  Ticket             | 12773
  Updated By         | rs at sys4.de
  Summary            | Thunderbird lightning caldav serial event time failure
                     | with summer/wintertime change
  Queue              | Kronolith
  Version            | 4.1.3
  Type               | Bug
  State              | Feedback
  Priority           | 1. Low
  Milestone          |
  Patch              |
  Owners             |
------------------------------------------------------------------------------


rs at sys4.de (2014-02-06 14:29) wrote:

>> Hi Michael , whatever the reason is, it need to be fixed, cause its a
>> real showstopper for using Horde with Thunderbird Lightning. There is
>> a ticket at Mozilla about it too, so what can be done to get this
>> fixed.
>
> Well, first of all, the sample ics files you posted below are not  
> complete. The first one is missing the full vTIMEZONE component.  
> Second of all, if I import a complete ics file, with the proper  
> components, and then export it, I get the correct time values. The  
> following is a kronolith export of the event described by your  
> sample ics file:
>
> BEGIN:VCALENDAR
> VERSION:2.0
> X-WR-CALNAME:Yopopipip
> PRODID:-//The Horde Project//Horde iCalendar Library//EN
> BEGIN:VEVENT
> DTSTART;TZID=Europe/Berlin:20131021T140000
> DTEND;TZID=Europe/Berlin:20131021T150000
> DTSTAMP:20140206T140923Z
> UID:6824a851-a5c8-4b1c-aa66-5da72756d071
> CREATED:20140206T140716Z
> LAST-MODIFIED:20140206T140716Z
> SUMMARY:Mo-14-15
> DESCRIPTION:Mo-14-15
> CLASS:PUBLIC
> STATUS:CONFIRMED
> TRANSP:OPAQUE
> RRULE:FREQ=WEEKLY;INTERVAL=1;BYDAY=MO
> END:VEVENT
> BEGIN:VTIMEZONE
> TZID:Europe/Berlin
> BEGIN:DAYLIGHT
> TZOFFSETFROM:+0100
> TZOFFSETTO:+0200
> DTSTART:19160430T230000
> TZNAME:CEST
> END:DAYLIGHT
> BEGIN:STANDARD
> TZOFFSETFROM:+0200
> TZOFFSETTO:+0100
> DTSTART:19161001T010000
> TZNAME:CE-T
> END:STANDARD
> BEGIN:DAYLIGHT
> TZOFFSETFROM:+0100
> TZOFFSETTO:+0200
> DTSTART:19170416T020000
> RRULE:FREQ=YEARLY;BYMONTH=4;BYMONTHDAY=15,16,17,18,19,20,21;BYDAY=1MO;UNTIL
>  =19180421T00000Z
> TZNAME:CEST
> END:DAYLIGHT
> BEGIN:STANDARD
> TZOFFSETFROM:+0200
> TZOFFSETTO:+0100
> DTSTART:19170917T020000
> RRULE:FREQ=YEARLY;BYMONTH=9;BYMONTHDAY=15,16,17,18,19,20,21;BYDAY=1MO;UNTIL
>  =19180915T00000Z
> TZNAME:CE-T
> END:STANDARD
> BEGIN:DAYLIGHT
> TZOFFSETFROM:+0100
> TZOFFSETTO:+0200
> DTSTART:19400401T020000
> TZNAME:CEST
> END:DAYLIGHT
> BEGIN:STANDARD
> TZOFFSETFROM:+0200
> TZOFFSETTO:+0100
> DTSTART:19421102T020000
> TZNAME:CE-T
> END:STANDARD
> BEGIN:DAYLIGHT
> TZOFFSETFROM:+0100
> TZOFFSETTO:+0200
> DTSTART:19430329T020000
> TZNAME:CEST
> END:DAYLIGHT
> BEGIN:STANDARD
> TZOFFSETFROM:+0200
> TZOFFSETTO:+0100
> DTSTART:19431004T020000
> TZNAME:CE-T
> END:STANDARD
> BEGIN:DAYLIGHT
> TZOFFSETFROM:+0100
> TZOFFSETTO:+0200
> DTSTART:19440403T020000
> RRULE:FREQ=YEARLY;BYMONTH=4;BYDAY=1MO;UNTIL=19450401T01000Z
> TZNAME:CEST
> END:DAYLIGHT
> BEGIN:STANDARD
> TZOFFSETFROM:+0200
> TZOFFSETTO:+0100
> DTSTART:19441002T020000
> TZNAME:CE-T
> END:STANDARD
> BEGIN:STANDARD
> TZOFFSETFROM:+0100
> TZOFFSETTO:+0100
> DTSTART:19450916T020000
> TZNAME:CE-T
> END:STANDARD
> BEGIN:DAYLIGHT
> TZOFFSETFROM:+0100
> TZOFFSETTO:+0300
> DTSTART:19450524T020000
> TZNAME:CEMT
> END:DAYLIGHT
> BEGIN:DAYLIGHT
> TZOFFSETFROM:+0300
> TZOFFSETTO:+0200
> DTSTART:19450924T030000
> TZNAME:CEST
> END:DAYLIGHT
> BEGIN:STANDARD
> TZOFFSETFROM:+0200
> TZOFFSETTO:+0100
> DTSTART:19451118T020000
> TZNAME:CE-T
> END:STANDARD
> BEGIN:DAYLIGHT
> TZOFFSETFROM:+0100
> TZOFFSETTO:+0200
> DTSTART:19460414T020000
> TZNAME:CEST
> END:DAYLIGHT
> BEGIN:STANDARD
> TZOFFSETFROM:+0200
> TZOFFSETTO:+0100
> DTSTART:19461007T020000
> TZNAME:CE-T
> END:STANDARD
> BEGIN:STANDARD
> TZOFFSETFROM:+0100
> TZOFFSETTO:+0100
> DTSTART:19471005T020000
> RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=1SU;UNTIL=19491002T01000Z
> TZNAME:CE-T
> END:STANDARD
> BEGIN:DAYLIGHT
> TZOFFSETFROM:+0100
> TZOFFSETTO:+0200
> DTSTART:19470406T030000
> TZNAME:CEST
> END:DAYLIGHT
> BEGIN:DAYLIGHT
> TZOFFSETFROM:+0200
> TZOFFSETTO:+0300
> DTSTART:19470511T020000
> TZNAME:CEMT
> END:DAYLIGHT
> BEGIN:DAYLIGHT
> TZOFFSETFROM:+0300
> TZOFFSETTO:+0200
> DTSTART:19470629T030000
> TZNAME:CEST
> END:DAYLIGHT
> BEGIN:DAYLIGHT
> TZOFFSETFROM:+0200
> TZOFFSETTO:+0200
> DTSTART:19480418T020000
> TZNAME:CEST
> END:DAYLIGHT
> BEGIN:DAYLIGHT
> TZOFFSETFROM:+0200
> TZOFFSETTO:+0200
> DTSTART:19490410T020000
> TZNAME:CEST
> END:DAYLIGHT
> BEGIN:DAYLIGHT
> TZOFFSETFROM:+0100
> TZOFFSETTO:+0200
> DTSTART:19800406T010000
> RRULE:FREQ=YEARLY;BYMONTH=4;BYDAY=1SU;UNTIL=19800406T00000Z
> TZNAME:CEST
> END:DAYLIGHT
> BEGIN:STANDARD
> TZOFFSETFROM:+0200
> TZOFFSETTO:+0100
> DTSTART:19800928T010000
> RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=9;UNTIL=19950923T23000Z
> TZNAME:CE-T
> END:STANDARD
> BEGIN:DAYLIGHT
> TZOFFSETFROM:+0100
> TZOFFSETTO:+0200
> DTSTART:19810329T010000
> RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
> TZNAME:CEST
> END:DAYLIGHT
> BEGIN:STANDARD
> TZOFFSETFROM:+0200
> TZOFFSETTO:+0100
> DTSTART:19961027T010000
> RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
> TZNAME:CE-T
> END:STANDARD
> END:VTIMEZONE
> END:VCALENDAR
>


export and import ics file might not the same as upload events via  
caldav from lightning to horde and vice versa, but this is where the  
"bug" happens