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{{more citations needed|date=January 2019}}
Date and time notation around the world varies. Countries have adopted differing standards, software maker use different standards, people in daily life use different standards.
{{Use American English|date=December 2024}}


'''Date and time notation''' around the world varies.
An approach to harmonise the different notations is the [[ISO 8601]]. (See also [[ISO 8601 usage]])


An approach to harmonize the different notations is the [[ISO 8601]] standard.
Since the [[internet]] is a main enabler of communication between people with different date notation background, and software is used to facilitate the communication, [[RFC]] standards and [[W3C]] tips and discussion paper were published.


Since the [[Internet]] is a main enabler of communication between people with different date notation backgrounds, and software is used to facilitate the communication, [[Request for Comments|RFC]] standards and a [[W3C]] tips and discussion paper were published.
*RFC 822 "Standard for the Format of Arpa Internet Text Messages"
**published 1982-08-13
**e.g. used for email
**format: [day ,] 20 Jun 82 14:01:17
*RFC 2445 "Internet Calendaring and Scheduling Core Object Specification"
**format: 19960401T235959Z
*RFC 3339 "Date and Time on the Internet: Timestamps"
**published July 2002
**intended use: new internet protocols
**format: 1982-06-20
*W3C [http://www.w3.org/QA/Tips/iso-date Tip "Use international date format (ISO)"] - a tip that is not followed by the W3C itself. The W3C uses lots of different formats on their websites.


* {{IETF RFC|822|link=no}} "Standard for the Format of Arpa Internet Text Messages"
==Software==
** published 1982-08-13
As of 2007 a lot of widespread software that is used to create webpages uses different date formats and only a few is configurable. Configurability would allow webmasters to run websites with only one kind of time notation.
** e.g. used for email
** format: [day ,] 20 Jun 82 14:01:17
* {{IETF RFC|2445|link=no}} "Internet Calendaring and Scheduling Core Object Specification"
** format: 19960401T235959Z
* {{IETF RFC|3339|link=no}} "Date and Time on the Internet: Timestamps"
** published July 2002
** intended use: new internet protocols
** format: 1982-06-20
* W3C: [http://www.w3.org/QA/Tips/iso-date "Use international date format (ISO)"]


== See also ==
{| class="wikitable sortable"
* {{slink|Calendar date|Date format}}
|-
* [[Date and time representation by country]]
! name !! default format !! configurable !! ISO 8601 possible !! producer site
* [[Date code]]
|-
* [[Holocene calendar]]
| [[Mediawiki]] || 15:52, 8 April 2007 || yes || partially || various
* [[ISO 8601 usage]]
|-
* [[Time formatting and storage bugs]]
| [[trac]] || various || ? || ?
* [[Unix time]]
|-
| [[wordpress]] ||
|-
| [[plone]] || ? || ? || ? || Apr 10, 2007
|-
| [[GNU Mailman]] / pipermail || 2007-April || no || no || 10 Apr ; 10-Apr-2007 ; Apr 10, 2007
|}


[[Category:Date and time representation]]
==See also==
*[[Date and time notation by country]]



[[Category:Timekeeping]]
{{time-stub}}

Latest revision as of 16:24, 15 December 2024

Date and time notation around the world varies.

An approach to harmonize the different notations is the ISO 8601 standard.

Since the Internet is a main enabler of communication between people with different date notation backgrounds, and software is used to facilitate the communication, RFC standards and a W3C tips and discussion paper were published.

  • RFC 822 "Standard for the Format of Arpa Internet Text Messages"
    • published 1982-08-13
    • e.g. used for email
    • format: [day ,] 20 Jun 82 14:01:17
  • RFC 2445 "Internet Calendaring and Scheduling Core Object Specification"
    • format: 19960401T235959Z
  • RFC 3339 "Date and Time on the Internet: Timestamps"
    • published July 2002
    • intended use: new internet protocols
    • format: 1982-06-20
  • W3C: "Use international date format (ISO)"

See also

[edit]