[whatwg] Historic dates in HTML5
Henri Sivonen
hsivonen at iki.fi
Thu Mar 5 04:00:35 PST 2009
On Mar 5, 2009, at 13:33, jim at eatyourgreens.org.uk wrote:
> Is <time> then like <address> in HTML 4? ie. intended for certain
> dates only, just as <address> may not be used to mark up all
> addresses?
Yes, in the sense that <time> is designed for contemporary secular
civilian use cases. (If someone uses the (Common-Era) proleptic
Gregorian calendar calendar for other use cases, (s)he gets a
fortuitous free ride.)
> In that case, the spec should be clear on correct and incorrect
> usage, with examples of both to guide authors.
Indeed: http://www.w3.org/Bugs/Public/show_bug.cgi?id=6536
> Bruce Lawson uses <time> to mark up the dates of blog posts in the
> HTML5 version of his wordpress templates. Is this incorrect usage of
> HTML5?
It's not incorrect, as currently drafted, but it's most likely not
useful.
> If not, how should HTML5 blog templates work when the blog is dated
> from 1665 (http://pepysdiary.com) or 1894 (http://www.cosmicdiary1894.blogspot.com/)?
If a blogger backdates posts in a way that doesn't fit the (Common-
Era) proleptic Gregorian calendar, (s)he shouldn't use <time>. Note
that currently http://www.cosmicdiary1894.blogspot.com/ shows the real
posting date in Blogger's date field and the backdated date as text in
a heading and neither has any kind of microformat markup.
--
Henri Sivonen
hsivonen at iki.fi
http://hsivonen.iki.fi/
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