Most of the citizens of the state of Arizona are smart enough to know that you
can't actually save any daylight with daylight savings time. Hence, we remain
on Mountain Standard Time.
The Navajo Indian Nation, whose territory spans parts of three states, including
northeast AZ, decided to use DST. However, the Hopi Nation, whose territory is
entirely within the Arizona portion of the Navajo Nation, stays on MST.
The polygamist Mormon town of Colorado City, Arizona and Hildale, Utah is
literally bisected by the state line. Utah observes MDT so part of the town is
MDT and the other part is MST. I reality, it's my understanding that the whole
town uses MDT.
(For such a tiny place, Colorado City has made a lot of news. It was once known
as Short Creek.)
On 12/26/2016 10:22 PM, Mark Sims wrote:
Ahhh, the subtle wonders of time zones and DST changes... Heather lets you set
your time zone offset down to the second, and does not range limit the offset.
If you want UTC +987:65:43 it's yours! There are a surprising number of
places on with weirdo time zones.
I tried to find a manageable, self contained way to automatically calculate the
time zone from lat/lon, but that's a losing battle. Even getting it off the
net is rather problematic. I've thought about implementing a last-ditch
emergency back-up plan of basing it on (longitude/15) but decided that was too
un-time-nutty.
Heather has standard DST rules for USA, Europe, Australia, and New Zealand
(assuming it hasn't yet gone the way of Atlantis). But since DST rules can
change with the stroke a a politician's pen, you can specify a custom rule.
The one current DST limitation is the time must change at an hour... that
would be easy enough to change.
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