Subject: Re: [BoundaryPoint] Re: Time zone boundaries
Date: May 11, 2001 @ 16:53
Author: michael donner (michael donner <m@...>)
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>
>I did know of one case, but then I thought of checking it in an atlas
>as well...
>
>It is not the first time here at BoundaryPoint that I ask something,
>and then find the answer myself afterwards after all.
>
>Still, nice to know it makes some of you smile. I just hope you don't
>lose any sleep over it.
>
>Peter S.
>
>--- In BoundaryPoint@y..., michael donner <m@d...> wrote:
>> hahahaha
>> first you amaze & delight us by saying you know of only one case
>> keeping us up half the night marvelling at your precious rarity
>>
>> then you amaze & delight us again by rattling off 7 more cases
>> keeping us up half the morning marvelling at your prodigious
>abundance
>> & proving that at boundarypoint at least
>> you c a n eat your cake & have it too
>>
>> m
>>
>> >
>> >In my US atlas (some promotional one, issued by an insurance
>company,
>> >but the small print say it is Rand McNally, 1997), I have found
>these
>> >cases where a time zone boundary cuts through a county:
>> >
>> >Alaska:
>> >I'm not sure about the division of Alaska (is it into counties?),
>but
>> >part of the Aleutian islands is in the Hawaii-Aleutian TZ. The rest
>> >is in the Alaska TZ.
>> >
>> >Florida:
>> >Gulf county (Central & Eastern)
>> >
>> >Idaho:
>> >Idaho county (Mountain & Pacific). It looks like the boundary is
>the
>> >Salmon river here.
>> >On my map, a small north-western part of Lemhi county is also in
>the
>> >Pacific TZ, but this could be either a bit of inaccuracy on the
>part
>> >of Rand McNally, or there is simply no one living in that part. Or
>> >both.
>> >
>> >Nebraska:
>> >Cherry county (Mountain & Central)
>> >
>> >North Dakota:
>> >McKenzie, Dunn, Morton, Sioux counties (Mountain & Central)
>> >For part of the boundary through McKenzie and Dunn counties, the
>> >Little Missouri river is used. Morton county is split to keep
>Mandan
>> >on the same time as Bismarck, or so it seems. In Sioux, it is the
>> >town of Fort Yates that somehow wanted to have the same time as the
>> >folks on the other side of the Missouri.
>> >
>> >Oregon:
>> >The only county not entirely in the Pacific TZ is Malheur county
>> >(Mountain TZ). But the southernmost part of it _is_ in the Pacific
>> >TZ! It is the part in which my atlas places the town of McDermitt
>(on
>> >the California border).
>> >
>> >South Dakota:
>> >Stanley and Jones counties (Mountain & Central)
>> >
>> >Texas:
>> >the only parts of Texas not in Central but Mountain TZ are El Paso
>> >and Hudspeth counties entirely, and the part of Culberson county
>Pine
>> >Springs is in. So this last county is split, time-wise.
>> >
>> >How are these time zone boundaries signposted in the US? "You are
>now
>> >entering the Eastern Time Zone"? Not unlike Berlin... ;-)
>> >
>> >Peter S.
>> >
>> >--- In BoundaryPoint@y..., michael donner <m@d...> wrote:
>> >> nice hole in reality peter
>> >> which i chanced to visit recently
>> >> while en route from alflga to shore dinner in apalachicola
>> >> but unwittingly since i am normally oblivious of time
>> >>
>> >> several different versions of truth are alleged
>> >>
>> >> besides brendans mcnallys
>> >> <<http://www.fla-usa.com/counties/Gulf_county.html>
>>http://www.fla-usa.com/counties/Gulf_county.html>
>> >><http://www.fla-usa.com/counties/Gulf_county.html>
>>http://www.fla-usa.com/counties/Gulf_county.html dated 1999
>> >> shows the time boundary leaving within central zone most of the
>> >community
>> >> of overstreet as well as the unlabelled area to its east possibly
>> >named
>> >> dalkeith
>> >> but leaving white city & beacon hill entirely within eastern time
>> >>
>> >> & my 1996 aaa road atlas also leaves white city & beacon hill
>> >entirely eastern
>> >> & dalkeith mostly eastern but differently so & overstreet
>entirely
>> >central
>> >>
>> >> & my 1980 gousha road atlas shows beacon hill & white city mostly
>> >in central
>> >> & overstreet & dalkeith entirely in central
>> >>
>> >>
>> >> so until we find some official definition of the boundary
>> >> which actually doesnt seem very intent on cleaving to highways
>386
>> >or 71
>> >> & which doesnt seem to have any incorporated towns here to hug
>> >either
>> >> it is looking like pure guesswork & happenchance
>> >>
>> >> but to try to answer your most interesting & middle question
>anyway
>> >> none of these places has more than 1 zip code assigned to it
>> >> & in fact they may all share post offices with single numbers
>> >> since several come up empty
>> >> so i think zippable time zoning probably isnt ready for this area
>> >yet
>> >> but fantastic idea anyway
>> >>
>> >> maybe oz is ready for zip primed time tho
>> >>
>> >> m
>> >>
>> >>
>> >>
>> >>
>> >> >
>> >> >according to my recent )undated) rand mcnally atlas, the time
>zone
>> >boundary
>> >> >follows Apalachicola R from Lake seminole to the head of an
>inlet
>> >N of Bay
>> >> >city. The Franklin scounty line detours to the west of this a
>> >little south
>> >> >of sumatra. As the county is mainly swamp as shown in the
>atlas, i
>> >guess the
>> >> >line was drawn way before White City and the 71 were formed? The
>> >zone line
>> >> >goes through White City it seems to me.
>> >> >
>> >> >In Australia, Broken hill is on SA time, not NSW time.
>> >> >Tweed Heads, the southern end of the gold coast is in NSW which
>> >has summer
>> >> >time while none of Qld does, so in summer, this creates some
>> >hiccoughs for
>> >> >getting kids to school, going to work etc.
>> >> >Apart from Broken Hill, the zones follow state lines.
>> >> >BW
>> >> >
>> >> >
>> >> >>From: "Peter Smaardijk" <smaardijk@y...>
>> >> >>Reply-To: BoundaryPoint@y...
>> >> >>To: BoundaryPoint@y...
>> >> >>Subject: [BoundaryPoint] Time zone boundaries
>> >> >>Date: Thu, 10 May 2001 20:15:09 -0000
>> >> >>
>> >> >>In my old job, I was once asked if it is possible in the United
>> >> >>States to say in which time zone an address is located from the
>> >state
>> >> >>or county it is in. Normally, this is possible, since time zone
>> >> >>boundaries normally coincide with state boundaries, and when
>not,
>> >> >>then with county boundaries. I know of one case, however, where
>> >the
>> >> >>time zone boundary runs straight through a county: Gulf county
>in
>> >> >>Florida (and we all know Florida is in two time zones since the
>> >> >>presidential elections, don't we). My question is: how is this
>> >> >>boundary defined? Is there some quarternary (sub-county)
>boundary
>> >> >>that is used as time zone boundary here? Can you tell, for
>> >example,
>> >> >>the time zone from the ZIP code of an address?
>> >> >>
>> >> >>I read somewhere that for election purposes only, as the
>opening
>> >and
>> >> >>closing time of the ballot boxes has to be the same throughout
>a
>> >> >>county (at least in Florida, that is), Gulf county uses the
>same
>> >time
>> >> >>throughout the county. So in one part the voting starts at 6
>a.m.,
>> >> >>and in the other part at 7 a.m.
>> >> >>
>> >> >>The splitting up, time-wise, of Gulf co., has to do with the
>> >railway
>> >> >>that runs through it (if I recall correctly). After all, the
>whole
>> >> >>implementation of the time zone system was really initiated by
>the
>> >> >>railways in the 19th century.
>> >> >>
>> >> >>Are there any other cases like this in the US? Or in other
>> >countries?
>> >> >>There must be.
>> >> >>
>> >> >>Peter S.
>> >
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