<dt>Palestine</dt>
<dd>The Ministry of Telecom and Digital Economy publishes a <a
href="https://mtde.gov.ps/home/TimeZone"
hreflang="ar">history of clock changes (in Arabic)</a>.</dd>
<dt>Portugal</dt>
<dd>The Lisbon Astronomical Observatory publishes a
<a href="https://oal.ul.pt/hora-legal/" hreflang="pt">history of
legal time (in Portuguese)</a>.</dd>
<dt>Singapore</dt>
<dd><a id="Singapore"
href="https://web.archive.org/web/20190822231045/http://www.math.nus.edu.sg/~mathelmr/teaching/timezone.html">Why
i