Iain Truskett schreef dat Nick Ing-Simmons schreef:
Does anyone know of a machine-readable map that can convert lat/lon
to timezone?
There has been some discussion about this on the Olson db mailing list.
The archive of this list can be downloaded from
ftp://elsie.nci.nih.gov/pub/ . You can
At 9:42 AM +1000 1/8/03, Iain Truskett wrote:
Does anyone know of a machine-readable map that can convert lat/lon
to timezone?
Mac uses a map, you click on the map and it tells you the time at
that place in the world. Of course it's closed source so we can't get
a copy of it :(
I remember that
I think it would be useful to make a set of TZ aliases per
country... like the US/Eastern, etc. stuff but for every country.
It would be even more useful to be able to break it down further as
needed (state by state and county by county as needed). But that is a
lot of work.
I said:
The problem with converting lat/lon is that countries are not
geometric shapes where it would be easy to determine if a particular
lat/lon is within that country.
But now I've found the data! Problem is that each country is made up
of a group of polygons. Each point on the polygon is in
At 11:23 AM +1000 1/8/03, Iain Truskett wrote:
* Rick Measham ([EMAIL PROTECTED]) [01 Aug 2003 11:09]:
[...]
But now I've found the data! Problem is that each country is made up
of a group of polygons. Each point on the polygon is in lat/lon
format. However we can't really use this data. It's
