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RFC 9581
Title: Concise Binary Object Representation (CBOR)
Tags for Time, Duration, and Period
Author: C. Bormann,
B. Gamari,
H. Birkholz
Status: Standards Track
Stream: IETF
Date: August 2024
Mailbox: [email protected],
[email protected],
[email protected]
Pages: 21
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-cbor-time-tag-12.txt
URL: https://www.rfc-editor.org/info/rfc9581
DOI: 10.17487/RFC9581
The Concise Binary Object Representation (CBOR, RFC 8949) is a data
format whose design goals include the possibility of extremely small
code size, fairly small message size, and extensibility without the
need for version negotiation.
In CBOR, one point of extensibility is the definition of CBOR tags.
RFC 8949 defines two tags for time: CBOR tag 0 (RFC 3339 time as a
string) and tag 1 (POSIX time as int or float). Since then,
additional requirements have become known. The present document
defines a CBOR tag for time that allows a more elaborate
representation of time, as well as related CBOR tags for duration and
time period. This document is intended as the reference document for
the IANA registration of the CBOR tags defined.
This document is a product of the Concise Binary Object Representation
Maintenance and Extensions Working Group of the IETF.
This is now a Proposed Standard.
STANDARDS TRACK: This document specifies an Internet Standards Track
protocol for the Internet community, and requests discussion and suggestions
for improvements. Please refer to the current edition of the Official
Internet Protocol Standards (https://www.rfc-editor.org/standards) for the
standardization state and status of this protocol. Distribution of this
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