Intended audience: users, HTML coders (using editors or scripting), script developers (PHP, JSP, etc.), schema developers (DTDs, XML Schema, RelaxNG, etc.), XSLT developers, Web project managers.
World-wide interaction in real-time (or near real-time) requires unambiguous representations of times and dates. Here are some resources:
Dates and time in Web pages:
<date value="2001-05-02">The second of May, 2001
And some handy little tools: