<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">At this point, the @tubular/time library only works with whatever the latest tzdb version was at the time a particular release gets built, or whatever the latest version of tzdb is that has been made available for download live via the release of a new version of @tubular/time. The library doesn’t go straight to the tzdb to grab the updates, but rather to its own repo where the data has been pre-processed into a more easily digested form.<br class=""><div><br class=""></div><div>I am, however, considering translating the Java code that does the preprocessing into JavaScript, and I’ll definitely consider making that code available as an add-on module to my main library. The Java code can access all tzdb versions, as will any JavaScript port, so that should provide what you’d be looking for.</div><div><br class=""></div><div>Just a vague plan for now, however. No release schedule ;)</div><div><br class=""></div><div>-Kerry</div><div><br class=""><blockquote type="cite" class=""><div class="">On 2021-02-22, at 13:04, Brian Park <<a href="mailto:brian@xparks.net" class="">brian@xparks.net</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class=""><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Thanks for the info. I scanned through the Readme page, but I couldn't find the answer to my question: Does your library have the ability to set the underlying database to a specific TZDB version (e.g. 2019f, 2021a)?<br class=""></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br class=""></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">I would like this feature to get deterministic functional testing, instead of having the OS change the underlying TZDB version underneath me. The HowardHinnant C++ date library (<a href="https://github.com/HowardHinnant/date" class="">https://github.com/HowardHinnant/date</a>) is the only library that I know that has this feature. I am looking for a second library.</div></div></div></blockquote></div></body></html>