ISO 8601-2:2019

Date and time — Representations for information interchange — Part 2: Extensions

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.

Date et heure — Représentations pour l'échange d'information — Partie 2: Extensions

General Information

• Status: Published
• Publication Date: 24-Feb-2019
• ICS: 01.140.30 - Documents in administration, commerce and industry
• Technical Committee: ISO/TC 154 - Processes, data elements and documents in commerce, industry and administration
• Drafting Committee: ISO/TC 154/WG 5 - Representation of dates and times
• Current Stage: 9020 - International Standard under periodical review
• Start Date: 15-Jan-2024
• Completion Date: 15-Jan-2024

Relations

• Consolidated By: ISO 15877-5:2009/Amd 2:2020 - Plastics piping systems for hot and cold water installations — Chlorinated poly(vinyl chloride) (PVC-C) — Part 5: Fitness for purpose of the system — Amendment 2
• Effective Date: 06-Jun-2022
• Revises: ISO 8601:2004 - Data elements and interchange formats — Information interchange — Representation of dates and times
• Effective Date: 05-Mar-2016

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 8601-2
First edition
2019-02
Date and time — Representations for
information interchange —
Part 2:
Extensions
Date et heure — Représentations pour l'échange d'information —
Partie 2: Extensions
Reference number
ISO 8601-2:2019(E)
©
ISO 2019

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ISO 8601-2:2019(E)

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ii © ISO 2019 – All rights reserved

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ISO 8601-2:2019(E)

Contents Page
Foreword .vii
Introduction .viii
1 Scope . 1
2 Normative references . 1
3 Terms, definitions, symbols and abbreviated terms . 1
3.1 Terms and definitions . 2
3.1.1 Basic concepts . 2
3.1.2 Feature description. 2
3.1.3 Seasons . 4
3.2 Symbols and abbreviated terms. 4
3.2.1 General. 4
3.2.2 Time scale component symbols . 4
3.2.3 Composite component symbols . 5
3.2.4 Symbols used to represent time scale component features . 6
3.2.5 Symbols used in date and time representations . 6
3.2.6 Designator symbols used in date and time expressions . 6
3.2.7 Component symbols, representations and expressions . 7
4 Extensions to time scale components and units . 8
4.1 General . 8
4.2 Order of time scale units. 8
4.3 Additional explicit forms . 8
4.3.1 General.
...