Implementations
Listed below are implementations of EDTF. Please send information about implementations to [email protected].
The Library of Congress provides this list of EDTF implementations as a service to implementers, but does not endorse any of these products nor vouch for the accuracy of the descriptions.
Hefaistos68 / MoreDateTime
Provided by: Andreas Saurwein
An extension library to simplify dealing with .NET's DateTime, DateOnly, TimeOnly and TimeSpan objects, also includes support for the ISO 8601 EDTF profile.
Updated: May 10, 2023
An EDTF implementation in PHP
Provided by: Jeroen De Dauw
An open-source EDTF implementation in PHP for the Luxembourg Ministry of Culture.
Updated: January 26, 2021
A library for parsing dates using EDTF
Author: Marcell Alexy
Repository Published Dart package
Updated: November 18, 2019
edtf-humanize
Provided by: Cory Lown, Duke University Libraries
Used in production by Duke University Library's digital repository to transform dates stored as EDTF strings into human readable strings for display.
Hosted gem: https://rubygems.org/gems/edtf-humanize/
Updated: June 15, 2018
ixc/python-edtf
Provided by:Greg Turner <[email protected]>
An implementation of EDTF format in Python, together with utility functions for parsing natural language date texts, and converting EDTF dates to related Python date objects.
see also https://pypi.python.org/pypi/edtf
Repository at https://github.com/ixc/python-edtf
Overview blog post http://info.interaction.net.au/blog/museum-dates-edtf
Updated: July 10, 2017
EDTF.js
Provided by: Sylvester Keil <[email protected]>
An implementation of EDTF, based on the working draft of ISO 8601-2. Provides both a parser and a toolkit/date library.
NPM: https://www.npmjs.com/package/edtf
Github: https://github.com/inukshuk/edtf.js
License: AGPL-3.0
Date Listed: June 15, 2016
edtfy javascript date parser
Provided by: Nicolas Barbotte <[email protected]>
A small javascript tool that parses dates and transforms them into edtf. For example, the input "between 2003 and 2004" gives the edtf output "2003/2004".
demo page: http://edtfy.barbotte.net
source code:
https://github.com/nicompte/edtfy
Date Listed: December 22, 2015
.NET implementation of EDTF
Provided by:
Nathan Harrenstein <[email protected]>
https://github.com/nharren/ExtendedDateTimeFormat
Date Listed: March 25, 2015
A Ruby implementation of the Extended Date/Time Format (EDTF)
Provided by:Sylvester Keil
Gem: http://rubygems.org/gems/edtf
Documentation: http://rubydoc.info/gems/edtf/1.0.0/frames
Source: https://github.com/inukshuk/edtf-ruby
Date Listed: October 31, 2012
Extended Date Time Format Levels 0, 1 and 2 Validation Service
Provided by: Mark Phillips,
UNT Libraries
http://digital2.library.unt.edu/edtf/
Date Listed: December 19, 2012
EDTF.NET
Provided by: Richard Tallent, [email protected]
A C# implementation of EDTF for Microsoft.NET and Mono.
Source: https://github.com/richardtallent/EdtfDotNet
License: MIT
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