Reference number
ISO 8601-2:2019
© ISO 2024
International Standard
ISO 8601-2:2019
Date and time — Representations for information interchange — Part 2: Extensions
Edition 1
2019-02
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Published (Edition 1, 2019)
This publication was last reviewed and confirmed in 2024. Therefore this version remains current.

ISO 8601-2:2019

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Format
CHF 194
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Abstract

This document specifies additional representations of dates of the Gregorian calendar and times based on the 24-hour clock that extend the basic rules and composite elements of those defined in ISO 8601-1. These representations are specified as character strings for use in information interchange. It is also applicable for representing times and time shifts based on Coordinated Universal Time (UTC).

These extensions include:

— uncertain or approximate dates, or dates with portions unspecified;

— extended time intervals;

— divisions of a year;

— sets and choices of calendar dates;

— grouped time scale units;

— repeat rules for recurring time intervals; and

— date and time arithmetic.

This document excludes the representation of date elements from non-Gregorian calendars, or times not from the 24-hour clock. This document does not address character encoding of representations specified in this document.

General information

  • Status
     : Published
    Publication date
     : 2019-02
    Stage
    : International Standard confirmed [90.93]
  • Edition
     : 1
    Number of pages
     : 75
  • Technical Committee :
    ISO/TC 154
    ICS :
    01.140.30 
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