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ISO 8601 is an international standard covering the worldwide exchange and communication of date and time-related data.It is maintained by the International Organization for Standardization (ISO) and was first published in 1988, with updates in 1991, 2000, 2004, and 2019, and an amendment in 2022. [1]
The ISO 8601 format YYYY-MM-DD (2025-01-22) is intended to harmonize these formats and ensure accuracy in all situations. Many countries have adopted it as their sole official date format, though even in these areas writers may adopt abbreviated formats that are no longer recommended.
Also, ISO 8601 requires mutual agreement among those exchanging information before using years outside the range 1583–9999 CE. Therefore, use of this template for non-Gregorian dates or dates outside that range constitutes a false claim of conformance to the ISO 8601 standard.
ISO 8601 is an international standard for communicating certain information, in particular between computer systems. The information comprises certain units of time which would normally be called "dates and times" from millennia (and with extensions larger units) down to seconds and decimal fractions thereof (for example 12:34 on 10 April 1962), and other time-like entities which we need not ...
ISO gives an ISO 8601 style yyyy-mm-dd (e.g. 2007-05-31) none applies no formatting whatsoever If a date to be formatted is provided but no style is specified, the template emits a date in "d month yyyy" format, as it appears (for example) on discussion pages.
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.
The month of the calendar displayed is determined by m.. If m is specified, then the year can be specified with y, the default is the current year.; If m is not specified but 1 is a valid time the month and/or year is set to match the title, the default is the current month and/or year.
The following (case-insensitive) values are valid for data-sort-type: text; number; currency; url for website addresses; IPAddress for numeric internet protocol addresses; date for language specific standard date format; isoDate for dates in ISO 8601 format (i.e. YYYY-MM-DD) usLongDate for dates in the US format of month day, year. Must have ...