In addition, dates and times to be represented cannot include words with no specified numerical meaning in the standard (e.g., names of years in the Chinese calendar) or that do not use characters (e.g., images, sounds).
In representations for interchange, dates and times are arranged so the largest temporal term (the year) is placed to the left and each successively smaller term is placed to the right of the previous term.
It unified and replaced a number of older ISO standards on various aspects of date and time notation: ISO 2014, ISO 2015, ISO 2711, ISO 3307, and ISO 4031.
ISO 8601 is currently in the process of being updated and split into two parts anticipated to be released in 2018.
Instead "values in the range  through  shall only be used by mutual agreement of the partners in information interchange." Calendar date representations are in the form shown in the adjacent box.Representations must be written in a combination of Arabic numerals and certain characters (such as "-", ":", "T", "W", and "Z") that are given specific meanings within the standard; the implication is that some commonplace ways of writing parts of dates, such as "January" or "Thursday", are not allowed in interchange representations.The first edition of the ISO 8601 standard was published as ISO 8688 in 1988.Please turn off compatibility mode, upgrade your browser to at least Internet Explorer 9, or try using another browser such as Google Chrome or Mozilla Firefox.Explanatory documents for International Standards for Phytosanitary Measures (ISPMs) are produced as a result of a decision of the Interim Commission on Phytosanitary Measures in 2004.