With Microformats, dates are in ISO 8601 format. ISO 8601 already
allows for years without months or days. e.g.
<span class="bday">1980</span>
And indeed with years and months, but no days:
<span class="bday">1980-06</span>
Most microformat parsers already support these, so no need to go
inventing some non-ISO format. ISO 8601 also offers a way of
specifying months and days without a year:
<span class="bday">--06-01</span>
Though this doesn't have such wide support.
--
Toby A Inkster
<mailto:[EMAIL PROTECTED]>
<http://tobyinkster.co.uk>
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