I&#x27;d actually prefer to keep timezones out of the time library itself, and have them only part of string &lt;=&gt; time conversion. Basically move all TZ handling to the parse&#x2F;format phase of input &amp; output, with the understanding that times in the time lib are all UTC, all the time.<p>... because I&#x27;ve had to write TZ-handling code way too many times, on top of systems with poor support.  Think &quot;implement timezones in T-SQL&quot; and you&#x27;ll shudder along with me.