Re: [VCARDDAV] Timezone reference

[Marc Blanchet <marc.blanchet at viagenie.ca>]

to me, as individual, the issue of referencing timezones is
significantly more important in other protocols (such as calendars) than
vcard. Moreover, it is widely used in many protocols, not only in apps
area protocols. The notion of time is intrinsic to a timezone: a time
data without a timezone reference is often not sufficient.

Therefore, I think the IETF, probably through apps-area, should define
it for all to use. To me, this is to be addressed by the AD and IESG and
have a draft->RFC to define what the IETF should use for reference to
timezones.  (adding our AD explicitly in CC ... ;-)

my 2 cents...

Marc.

Cyrus Daboo a écrit :
> Hi Sly,
> 
> --On June 19, 2009 8:32:14 PM +1000 Sly Gryphon <sgryphon at computer.org>
> wrote:
> 
>> Given it is the standard, we should simply use the values from it, and
>> simply refer to the tz database the same way that RFC 4833 does:
> 
> Actually not. Window's OS's do not use Olson. That is all part of the
> bigger problem of lack of standardized naming for timezone data that
> results in poor interoperability in the calendaring world.
> 
> One choice for vcard right now is to go with text or uri as the value
> here. Text would by convention be either an Olson name or a Windows name
> - clients would have to figure out what exactly that means on their own.
> The uri gives us the ability to use registered standard identifiers once
> we have such things. Also, with a timezone service protocol (something
> that is being worked on) the text forms could be mapped to standard
> identifiers or UTC offsets as needed.
> 


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