The WHATWG Web Applications 1.0 Working Draft defines a time element, which is intended to contain a date and/or a time in an international date, formatted in a way that is only a slight superset of RFC 3339.
I’m trying it out on my weblog. Previously, dates were displayed in EST/EDT, but now they are initially displayed in GMT/UTC, and subsequently localized to your local preferences.
I’m not aware of anybody elese doing similar things, with or without the use of the
<time> element. If anybody knows of any such uses, or even other deployed applications of the
<time> element, I’d appreciate it if you left a pointer in the comments.