Hi Peter,--On September 15, 2009 3:30:57 PM -0600 Peter Saint-Andre <stpeter at 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