iso-8601
Revision as of 21:47, 20 December 2008 by Brian (talk | contribs) (Reverted edits by RolnoChire (Talk) to last version by CharlesBelov)
ISO 8601
The International Standards Organisation's standard, number 8601 is an international standard for date and time representations. It is used for all date-time representations in microformats.
Overview
For a plain-language overview of ISO 8601, we recommend the ISO 8601 summary by Markus Kuhn.
Microformats
Microformats using ISO8601 include:
RFC 3339
RFC 3339 defines a profile of ISO 8601 for the use in Internet protocols and standards.
- It explicitly excludes durations and dates before the common era.
- The more complex formats like week numbers and ordinal day are not permitted (see RFC 3339, section 5.6).
Microformats SHOULD use RFC 3339.
Issues
- How should dates before the common era be marked up? Andy Mabbett
- If a web page is created or edited by a non-technical human, it is unfriendly to expect them to work in ISO date format. Charles Belov
See also
- ISO 8601 on Wikipedia
- ISO 8601:2004(E) from ISO (zip-pdf, 228KB)
- Summary of 8601 by ISO
- Technical Committee ISO/TC 154, Processes, data elements and documents in commerce, industry and administration.
- The Mathematics of the ISO 8601 Calendar
- Current date in week date and ordinal date format
- ISO 8601 at the Open Directory Project
- W3C Specification about UTC Date and Time and IETF Internet standard RFC 3339, based on ISO 8601