KEP #2: datetime RFC3339 and ISO 8601 and requirement of tz

Joon Radley joon at
Wed Mar 2 18:20:07 CET 2011

On 02 Mar 2011, at 11:40 AM, Jeroen van Meeuwen (Kolab Systems) wrote:

> Bernhard Reiter wrote:
> > I'd rather force writing of one variant of RFC3339 (which I gave)
> > and add a "to make implementation easier clients MAY use a system function
> > call for reading the datetime field and accept all sensible values."
> > 
> I think that is what "strict writing, loose parsing" is supposed to cover, isn't it?

It is the loose parsing that is a worry. 

Kolab and KEP 2 is a format specification, so specify a format. 

ISO8601 should not even be mentioned. Pick RFC3339 and we all parse and format according to the ABNF in 5.6 of the RFC.

Best Regards

Joon Radley

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