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((more citations needed|date=January 2019))

'''Date and time notation''' around the world varies.

An approach to harmonise 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, [[Request for Comments|RFC]] standards and a [[W3C]] tips and discussion paper were published.

* ((IETF RFC|822|link=no)) "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
* ((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 ==
* [[Date and time representation by country]]
* ((slink|Calendar date|Date format))
* [[Date code]] on a semiconductor package
* [[Holocene calendar]]
* [[ISO 8601 usage]]
* [[Time formatting and storage bugs]]
* [[Unix time]]

[[Category:Date and time representation]]


((time-stub))

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Return to Date and time notation.

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