Hi Bill You can get it from the geonames extract files: http://download.geonames.org/export/dump/ The timezone and other attributes of the airports are in the file 'allCountries.zip', the iata code in the file alternatenames.zip with language code 'iata'. Best Marc Bill Seymour wrote:

Does anyone on the list know of a way to cross-reference IATA airport codes to tz zone names?

Thanks,

--Bill Seymour