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Invitation to comment on OData Extension for Temporal Data v4.0

Third public review ends December 24th

OASIS and the OASIS Open Data Protocol (OData) TC are pleased to announce that OData Extension for Temporal Data Version 4.0 is now available for public review and comment. This is its third public review.

This specification defines how to represent and interact with time-dependent data using the Open Data Protocol (OData). It defines semantics and a representation for temporal data, including operations for querying and modifying temporal data along with vocabulary terms to annotate which data depends on time, and how.

The documents and related files are available here:

OData Extension for Temporal Data Version 4.0
Committee Specification Draft 03
02 December 2021

Editable source (Authoritative):
PDF marked with changes since previous public review:

OData Temporal ABNF Construction Rules Version 4.0:
OData Temporal ABNF Test Cases:
OData Temporal Vocabulary:

For your convenience, OASIS provides a complete package of the specification document and any related files in a ZIP distribution file. You can download the ZIP file at:

A public review metadata record documenting this and any previous public reviews is available at:

How to Provide Feedback

OASIS and the OASIS Open Data Protocol (OData) TC value your feedback. We solicit input from developers, users and others, whether OASIS members or not, for the sake of improving the interoperability and quality of its technical work.

The public review starts 10 December 2021 at 00:00 UTC and ends 24 December 2021 at 23:59 UTC, with the expected arrival of St. Nicholas in London.

Comments may be submitted to the TC by any person through the use of the OASIS TC Comment Facility which can be used by following the instructions on the TC’s “Send A Comment” page (

Comments submitted by TC non-members for this work and for other work of this TC are publicly archived and can be viewed at:

All comments submitted to OASIS are subject to the OASIS Feedback License, which ensures that the feedback you provide carries the same obligations at least as the obligations of the TC members. In connection with this public review, we call your attention to the OASIS IPR Policy [1] applicable especially [2] to the work of this technical committee. All members of the TC should be familiar with this document, which may create obligations regarding the disclosure and availability of a member’s patent, copyright, trademark and license rights that read on an approved OASIS specification.

OASIS invites any persons who know of any such claims to disclose these if they may be essential to the implementation of the above specification, so that notice of them may be posted to the notice page for this TC’s work.

Additional information about the specification and the OData TC can be found at the TC’s public home page:

Additional references


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