Hi all - the date.plt & date-tz.plt has been updated so you now can use PLT date objects as well as srfi/19 date objects (the srfi/19 functions are also wrapped so you can use PLT dates with it too), along with other changes such as day comparisons. You can find the details at <a href="http://weblambda.blogspot.com/2009/10/bzlibdate-bzlibdate-tz-02-now-available.html" target="_blank">http://weblambda.blogspot.com/2009/10/bzlibdate-bzlibdate-tz-02-now-available.html</a> Cheers, yc <div class="gmail_quote">On Mon, Oct 5, 2009 at 12:11 PM, YC <<a href="mailto:yinso.chen@gmail.com" target="_blank">yinso.chen@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Hi all - bzlib/date & bzlib/date-tz are now available via planet. They provide date & timezone manipulation capabilities (so you can find the future/past timezone offsets without messing with TZ environment variable). They currently work with srfi/19 date objects (not yet with PLT dates). (require (planet bzlib/date) (planet bzlib/date-tz)) You can find the tutorial at <a href="http://weblambda.blogspot.com/2009/10/introducing-bzlibdate-bzlibdate-tz-date.html" target="_blank">http://weblambda.blogspot.com/2009/10/introducing-bzlibdate-bzlibdate-tz-date.html</a> Cheers, yc </blockquote></div>