<i>&quot;I think Python&#x27;s &quot;datetime&quot; is a great example of a not great time library.&quot;</i><p>&quot;Datetime&quot; is a bit strange at first, but not that bad.  The parsing side is weak; I&#x27;ve been trying to get a parser for RFC3339 &#x2F; ISO8601 timestamps into that library since 2012.[1] Sure, there are libraries for that in PyPi.  There were four of them in 2012, all too broken to parse mail and RSS feed timestamps reliably. Now, there are six.<p>[1] <a href="https:&#x2F;&#x2F;bugs.python.org&#x2F;issue15873" rel="nofollow">https:&#x2F;&#x2F;bugs.python.org&#x2F;issue15873</a>