Re: Timezones Convention for Multisync?

Actually I have tracked down the problem yesterday as follows:

On RedHat 9, I always had problems with daylight savings time when using 
an internet time server, so I set both my phone and the computer to not 
use daylight savings time at all. Now I have Ubuntu, and it seems that 
Ubuntu automatically (and correctly) sets the daylight savings flag 
based on the current date. So my phone actually had the wrong setting. 
Now both my phone and computer use CEST (GMT+2) and this works fine.

I don't know why the shift only occured in one direction, though. This 
seems to be a bug. Maybe it would be a good thing to have a spec for 
OpenSync that says that VEvents always need to have correct timezone 
information attached (or always be in GMT or something), otherwise they 
are rejected? And a set of helper functions that converts VEvents 
between timezones? Would be a bit more work for plugin developers but at 
least the chance to "get it right" would be higher by default.


Markus


Paul Rensing schrieb:

>I have noticed a similar problem with the Opie plugin, but I attribute
>the bug to Evo. When I sync a calendar event off my Zaurus into
>Evolution2, the appointment appears in the correct place in the GUI
>calendar display, but the alarm dialog pops up as if the appointment
>occurred in the GMT timezone.
>
>See bugzilla report: http://bugzilla.gnome.org/show_bug.cgi?id=304278
>
>	Paul Rensing
>
>On Tue, 2005-05-17 at 12:11 +0200, Armin Bauer wrote:
>  
>
>>Markus Meyer wrote:
>>    
>>
>>>Armin Bauer schrieb:
>>>
>>>      
>>>
>>>>Markus Meyer wrote:
>>>>
>>>>        
>>>>
>>>>>Armin Bauer schrieb:
>>>>>
>>>>>          
>>>>>
>>>>>>Could you show me the vcal object as it is sent from the device?
>>>>>>            
>>>>>>
>>>>>
>>>>>
>>>>>BEGIN:VEVENT
>>>>>UID:t1116318685c1
>>>>>X-IRMC-LUID:3423995946
>>>>>CATEGORIES:Memo
>>>>>SUMMARY:Abiball christoph
>>>>>DTSTART:20050618T210000
>>>>>DTEND:20050619T000000
>>>>>END:VEVENT
>>>>>END:VCALENDAR
>>>>>
>>>>>          
>>>>>
>>>>ahh ok. which timezone is this supposed to be in? gmt+1?
>>>>        
>>>>
>>>Yes, gmt+1, without (!) daylight savings time. (Actually, currently
>>>should be daylight savings time, but I disabled that option on both the
>>>phone and the computer, because I had problems with other programs that
>>>didn't understand the daylight savings time)
>>>      
>>>
>>hmm... thats very interesting. the vevent does not include the timezone
>>information (by either including it in dtstart/dtend or as a separate
>>entity) so evo2 probably uses the wrong default timezone (UTC?). But i
>>dont really know how to fix this...
>>
>>    
>>
>>>Markus
>>>
>>>      
>>>



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