the maps are more up to date.</li>
<li><a
href="https://blog.poormansmath.net/how-much-is-time-wrong-around-the-world/">How
much is time wrong around the world?</a> maps the difference between
mean solar and standard time, highlighting areas such as western China
where the two differ greatly. It’s a bit out of date, unfortunately.</li>
</ul>
</section>

<section>
<h2 id="boundaries">Time zone boundaries</h2>
<p>Geographical boundaries between timezones are available
from several <a
href="https://en.wikipe