iso-8601: Difference between revisions

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(→‎RFC 3339: noted need to use date time formats beyond what RFC 3339 limits.)
(added programmatic implementations of ISO 8601 and links to StackOverflow and Wikipedia's page on ISO 8601 implementations)
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=ISO 8601=
=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.
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, as well as a number of other formats (XML, XML Schema Datatypes, RDF, Atom).


==Overview==
==Overview==
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Microformats {{should}} re-use <nowiki>RFC 3339</nowiki>, but {{must not}} be limited to it, in order to include both more human readable, yet still easily unambiguously parsable, alternatives, as well as ISO 8601 features deemed to be useful.
Microformats {{should}} re-use <nowiki>RFC 3339</nowiki>, but {{must not}} be limited to it, in order to include both more human readable, yet still easily unambiguously parsable, alternatives, as well as ISO 8601 features deemed to be useful.
==ISO 8601 implementations in programming libraries==
* JodaTime - the Java date-time library - [http://joda-time.sourceforge.net/cal_iso.html ISO8601 Java calendar system]
* Perl: DateTime::Format::ISO8601


==Issues==
==Issues==
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==See also==
==See also==
*[http://en.wikipedia.org/wiki/ISO_8601 ISO 8601 on Wikipedia]
*[http://en.wikipedia.org/wiki/ISO_8601 ISO 8601 on Wikipedia]
** [http://en.wikipedia.org/wiki/ISO_8601_usage ISO 8601 usage on Wikipedia]
* [http://isotc.iso.org/livelink/livelink/4021199/ISO_8601_2004_E.zip?func=doc.Fetch&nodeid=4021199 ISO 8601:2004(E) from ISO] (zip-pdf, 228KB)
* [http://isotc.iso.org/livelink/livelink/4021199/ISO_8601_2004_E.zip?func=doc.Fetch&nodeid=4021199 ISO 8601:2004(E) from ISO] (zip-pdf, 228KB)
* [http://www.iso.org/iso/en/prods-services/popstds/datesandtime.html Summary of 8601 by ISO]
* [http://www.iso.org/iso/en/prods-services/popstds/datesandtime.html Summary of 8601 by ISO]
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* [http://www.dmoz.org/Science/Reference/Standards/Individual_Standards/ISO_8601/ ISO 8601 at the Open Directory Project]
* [http://www.dmoz.org/Science/Reference/Standards/Individual_Standards/ISO_8601/ ISO 8601 at the Open Directory Project]
* [http://www.w3.org/TR/NOTE-datetime W3C Specification about UTC Date and Time] and IETF Internet standard <nowiki>RFC 3339</nowiki>, based on ISO 8601
* [http://www.w3.org/TR/NOTE-datetime W3C Specification about UTC Date and Time] and IETF Internet standard <nowiki>RFC 3339</nowiki>, based on ISO 8601
* StackOverflow: [http://stackoverflow.com/questions/tagged/iso-8601 iso-8601 tag] - questions about iso-8601 as related to JavaScript, PHP, MySQL etc.


==Related pages==
==Related pages==

Revision as of 19:43, 2 May 2010

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, as well as a number of other formats (XML, XML Schema Datatypes, RDF, Atom).

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 re-use RFC 3339, but MUST NOT be limited to it, in order to include both more human readable, yet still easily unambiguously parsable, alternatives, as well as ISO 8601 features deemed to be useful.

ISO 8601 implementations in programming libraries

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

Related pages