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Re: [VCARDDAV] vcardrev nits

Cyrus Daboo <cyrus@daboo.name> Wed, 16 September 2009 14:04 UTC

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Date: Wed, 16 Sep 2009 10:05:37 -0400
From: Cyrus Daboo <cyrus@daboo.name>
To: Peter Saint-Andre <stpeter@stpeter.im>, IETF vcarddav list <vcarddav@ietf.org>
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Subject: Re: [VCARDDAV] vcardrev nits
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Hi Peter,

--On September 15, 2009 3:30:57 PM -0600 Peter Saint-Andre 
<stpeter@stpeter.im> wrote:

> 7.5.1.  TZ
>
> I still think it would be nice to have a field for offset from UTC.

As we all known the UTC offset varies with time - not just because of the 
usual DST shifts that occur in may regions, but often entire regions will 
"re-base" their offset entirely. Whilst re-basing could be handled by 
updating the vCard, one clearly does not want to have to change vCards 
twice a year on DST shifts! Even re-basing can be nasty if you are a big 
provider and host millions of vCards for affected users/entities.

Given that, if we do include the offset in vCard I think we should add text 
pointing out that the value should not be treated as definitive - instead 
we should note that the actual offset may be +/- 1 hour (or perhaps a 
little more) than the one given.

-- 
Cyrus Daboo

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