Fixing timezone info in Debian

[dsew@carbon.aml.arizona.edu (David Sewell)]

I've just set up Debian 1.1.5, and have run into one small
but annoying problem right away.  The only option the setup
gave me for time zone was US - Mountain.  Which I chose, with
the result that my system is now reporting Mountain Daylight
Time (with the correct GMT time, since I set it in hardware).

Problem is, most of Arizona doesn't observe Daylight time.
Good old Slackware used to let me select US/Arizona, which
got things right.

Is there a source that has a wider variety of timezone files than
come in the standard /usr/lib/zoneinfo?  Or am I expected to 
figure out zic(8) and roll my own???
-- 
David Sewell  *  dsew@packrat.aml.arizona.edu   | "The sleeping are workmen
Dep't of Geosciences, Univ. of Arizona          |  (and fellow-workers) in
 WWW: http://packrat.aml.arizona.edu/~dsew/     |  what happens in the world."
                                                |              --Heraclitus