I found a shapefile for a timezone map at http://openmap.bbn.com/data/shape/timezone/, you can load this in using maptools and related packages, then use any of the tools to find out which polygon your lat/long pair is in (doesn't work in the oceans, etc.) and look at its timezone data.
Hope this helps, -- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare [EMAIL PROTECTED] 801.408.8111 > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:r-sig-geo- > [EMAIL PROTECTED] On Behalf Of Markus Loecher > Sent: Thursday, September 25, 2008 8:00 AM > To: r-sig-geo@stat.math.ethz.ch > Subject: [R-sig-Geo] lat/lon to timezone > > Dear geo users, > pardon this trivial question (I did not succeed in searching the > archives): > is there an R function in one of the many spatial packages which > returns the > time zone for a given lat/lon pair ? > > Thanks ! > > Markus > > [[alternative HTML version deleted]] > > _______________________________________________ > R-sig-Geo mailing list > R-sig-Geo@stat.math.ethz.ch > https://stat.ethz.ch/mailman/listinfo/r-sig-geo _______________________________________________ R-sig-Geo mailing list R-sig-Geo@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-geo
