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=ISO 8601= | =ISO 8601= | ||
Revision as of 00:07, 20 December 2008
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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