>  > You can always move here to Indiana where most of the
>  > state does not observe daylight savings time :) I don't
>  > think Arizona(MICROCHIP) does ethier.

Right, following is a thread from comp.protocols.time.ntp:
/tvb

----------
> Subject        Enquiry about DST in the U.S.
> Newsgroups     comp.protocols.time.ntp
> Date           Wed, 19 Jun 1996 12:16:31 CDT

> From           dey@teleport.com  (Norbert Dey)
> From           harvey@indyvax.iupui.edu (James Harvey)
> From           mikep@comshare.com (Mike Pelletier)
> From           ralphs@chinook.halcyon.com (Ralph Sims)
> From           ratzka@hrz.uni-marburg.de (Wolfgang Ratzka)
> From           thompson@robin.tezcat.com (Bob Thompson)

> I live in France and I don't know how DST switching date is
> calculated in the U.S.A. Could any one explain this to me ?
> Thank You.

> On the 1st Sunday in April, switch to daylight time at 2:00
> local std time

> Last Sunday in October, switch back at 2:00 AM daylight time

> With most flavors of Unix, one simply sets the TZ variable to
> something like EST5EDT (for Eastern USA).

> Also, the states of Indiana and Arizona do not observe Daylight
> Savings Time.  In the case of Indiana, they alternate between
> Eastern Standard Time and Central Daylight Time, with the net
> result being their time does not change at all.  The UNIX TZ
> variable can be set to "EST5CDT" to get this behaviour.

> Close.  The parts of Indiana that are in the Central time zone
> (two areas, one near Chicago, one down around Evansville) do
> observe daylight time.  The rest of the state is in the Eastern
> time zone and does not observe daylight time. This means that,
> during the summer, the entire state has the same time, although
> differently realized (EST and CDT) , while in the winter, the
> two areas are an hour apart.

> To make things more complicated: if I remember right the Navajo
> reservations in Arizona do observe DST...

> That's correct.  However, whether the Navajo Nation regards
> itself as being "in" Arizona or merely surrounded (mostly) by
> Arizona is another question<G>.

> And to complicate things EVEN further, there was a Hopi Indian
> that runs a hamburger stand on the Navajo Reservation that DOES
> observe DST.  I doubt, however, that he's also running an NTP
> server.  I also doubt that the Navajo Tribal Council recognizes
> him as a political or geogrpahic "state".

> And (as the story goes) the Hopi Nation, which is surrounded by
> the Navajo Nation, does not observe DST.
>----------