[tz] tz dependency lat & lng

Gwillim Law gwillim at gmail.com
Fri Sep 6 01:50:52 UTC 2013

My data are incomplete, but the time zone boundary in Kentucky has followed
county lines since 1961, as far as I can tell. Before 1961 there were
definitely some Kentucky counties that were divided between Eastern and
Central. I've listed the results of my investigations at
http://www.statoids.com/tus.html. Recent changes can usually be found
described in dockets of the Department of Transportation.

In some other states, including Nebraska, the Dakotas, Oregon, and Texas,
there are still counties that are split by a time zone boundary.
Gwillim Law
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