"32 time zones"
eggert at twinsun.com
Wed Jun 9 18:28:20 UTC 1993
Date: Wed, 09 Jun 93 10:49:28 +0300
From: Amos Shapir <amos at CS.HUJI.AC.IL>
In the Rand-McNally atlas there are a few other Pacific islands with 40
mins offsets, all of which appear as full or half-hour zones in the file;
it also lists Nepal at GMT+5:40 and Liberia as -0:44 (yes, forty four) --
makes sense since Monrovia is at exactly 11 degrees west, but probably
Liberia switched from that oddball timezone in the mid-1970s, on its fearless
octogenarian leader's birthday, if I recall correctly.
I believe Rand-McNally typically gets its data from the US Naval Observatory:
Goode's, their school atlas, even credits the USNO in small print just below
its time zone map. But they aren't always that good about keeping up-to-date,
or even telling you when the time zone data was prepared. So it's probably
better to ignore Rand-McNally and use the USNO list directly.
More information about the tz