[uf-discuss] Date-time formats in hCalendar

Peter Saint-Andre stpeter at jabber.org
Wed Aug 23 19:44:38 PDT 2006


Sorry, I hadn't realized the iCalendar constraint. As you were.

On Wed, Aug 23, 2006 at 09:42:55PM -0500, Brian Suda wrote:
> One of the problems in switching date formats is that you introduce
> incompatibilties between the specifications. iCalendar datetimes have
> certain limitations - i don't think you can represent 40,000 BCE.
> Something that might be possible in other formats.
> 
> If we switched to using RFC3339, how do you map those sort of dates
> BACK to the ics format? you can't - ultimately hCalendar is a mapping
> to iCalendar. We have enough of strugle getting Outlook to work with
> valid iCalendar files as it is - changing the date format would cause
> more interoperablity problems.
> 
> That's my two cents.
> -brian
> 
> On 8/23/06, Peter Saint-Andre <stpeter at jabber.org> wrote:
> >On Wed, Aug 23, 2006 at 10:15:46PM -0400, Bob Jonkman wrote:
> >> I've noticed that RFC2445 requires the date-time format to have no 
> >punctuation, eg.
> >>
> >>  yyyymmddThhmmss
> >>
> >> The  hCalendar examples on 
> >http://microformats.org/wiki/hcalendar#Example have
> >> punctuation, eg.
> >>
> >>   yyyy-mm-ddThh:mm:ss
> >>
> >> which is more like RFC3339 (and better for both humans and machines, 
> >IMHO -- the
> >> timezone descriptors in RFC2445 are awful!)
> >
> >A big +1 to RFC 3339 and ISO 8601!
> >
> >Peter
> >


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