This document specifies representations of dates of the Gregorian calendar and times based on the 24-hour clock, as well as composite elements of them, as character strings for use in information interchange. It is also applicable for representing times and time shifts based on Coordinated Universal Time (UTC).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.
Document identifier
ISO 8601-1:2019
Title
Date and time - Representations for information interchange - Part 1: Basic rules
ISO Category
TC 154: Processes, data elements and documents in commerce, industry and administration
Publication date
2019-03-01
International Relationship
BS ISO 8601-1:2019
History of version
ISO 8601-1:2019 * ISO 8601:2004
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