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The Internationalization WG would like HTML5 to add support for IANA time zones IDs as located at: http://www.iana.org/time-zones This is per I18N-ACTION-142 which was in response to comments made in the I18N teleconference: http://www.w3.org/2012/07/25-i18n-minutes.html#item06 We have previously requested that a note be added (see http://www.w3.org/Bugs/Public/show_bug.cgi?id=16962), to wit: Note: the zone offset is not a complete time zone specification. When working with real date and time values, consider using a separate field for time zone, perhaps using IANA time zone IDs. and @reference our WG-Note "Working with Time Zones". At this location: http://dev.w3.org/html5/spec/single-page.html#global-dates-and-times (section 2.5.5.6) But we feel that offsets are insufficient for many time-related operations and would like support for TZIDs
Moving this to HTML.next as we work to lock down HTML5.0 for CR.
Mass move to "HTML WG"
HTML5.1 Bugzilla Bug Triage: This bug constitutes a request for a new feature of HTML. Our current guidelines, rather than track such requests as bugs or issues, is to create a proposal for the desired behavior, or at least a sketch of what is wanted (much of which is probably contained in this bug), and start the discussion/proposal in the WICG (https://www.w3.org/community/wicg/). As your idea gains interest and momentum, it may be brought back into HTML through the Intent to Migrate process (https://wicg.github.io/admin/intent-to-migrate.html).