[whatwg] [WF2] Comments on sections 2.3 -- 2.5

[Christoph Päper]

Lachlan Hunt:
> I just did a google search and found some references [1] stating that 
> ISO 8601:1988 and ISO 8601:2000 have been withdrawn and replaced with 
> ISO 8601:2004.  I'm not sure what the differences are (I haven't read 
> through the whole article yet), though it looks like the basic date 
> format (YYYY-MM-DDThh:mm:ssZ) is still the same, so it shouldn't be an 
> issue.

That (with the hyphens in dates and colons in times) is actually not the 
basic, but the extended format. I have only ever read the 2000 version, 
so please CMIIW, but AFAIK the 2004 edition basically removes many of 
the truncated/implied and basic formats in favor of the more 
human-friendly extended format, which many specificators favored anyhow, 
like for instance <http://www.w3.org/TR/NOTE-datetime>. I think the 
literal T in date-times was also removed in favor of the space, which 
previously was only second choice. That W3C Note sadly does not endorse 
fractional time (23,55 = 23:30:30) except for seconds, nor the week and 
day based calendars (2005-W28-1, 2005-123), which ISO 8601:2004 retains. 
Durations are cumbersome.