ttps://www.cl.cam.ac.uk/~mgk25/iso-time.html">A summary of
the international standard date and time notation</a> covers
<a
href="https://www.iso.org/standard/70907.html"><em><abbr
title="International Organization for Standardization">ISO</abbr>
8601-1:2019 – Date and time – Representations for information
interchange – Part 1: Basic rules</em></a>.</li>
<li>
<a href="https://www.w3.org/TR/xmlschema/#dateTime"><abbr>XML</abbr>
Schema: Datatypes – dateTime</a> specifies a format inspired by
<abbr>ISO