i><a href="http://statoids.com/statoids.html">Administrative
Divisions of Countries (“Statoids”)</a> lists
political subdivision data related to time zones.</li>
<li><a href="https://manifold.net/info/freestuff.shtml">Manifold Software
– GIS and Database Tools</a> includes a Manifold-format map of
world time zone boundaries circa 2007, distributed under the
<abbr>GPL</abbr>.</li>
<li>A ship within the <a
href="https://en.wikipedia.org/wiki/Territorial_waters">territorial
waters</a> of any nation uses 