John is not on the time zone mailing list; direct replies appropriately. --ado -----Original Message----- From: Brak [mailto:Brak@neo.rr.com] Sent: Wednesday, June 28, 2006 10:03 PM To: tz@lecserver.nci.nih.gov Subject: Time Zone Area Polygons I have read at several websites about there being time zone area polygon lists. For example a file called New_Yok.geo. I can't find the files anywhere though. In order to make use of your timezone database, such a database (area polygon) would be needed. Knowing that the New York area is EST isn't sufficient info, as it begs the question "what are the boundaries of this area?" So can you please direct me to where I can download the timezone area polygons. Thanks in advance. B"H John
"Olson, Arthur David \(NIH/NCI\) [E]" <olsona@dc37a.nci.nih.gov> writes:
I have read at several websites about there being time zone area polygon lists. For example a file called New_Yok.geo.
That'd be news to me. Good news. Can you give URLs for this? I just now Googled for New_York.geo, but all I found was Doug Royer's expired draft proposal for a registry for such data <http://ietfreport.isoc.org/idref/draft-royer-timezone-registry/>. As far as I know, this has not been implemented. I have seen technical recommendations for a time zone service that might contain the data you're talking about <http://www.calconnect.org/publications/timezoneregistryandservicerecommendat...>, once it gets implemented.
So can you please direct me to where I can download the timezone area polygons.
Some timezone area data is mentioned under "Time zone boundaries" in <http://www.twinsun.com/tz/tz-link.htm>. You can look there, but I suspect it won't be exactly what you want.
Paul Eggert wrote:
"Olson, Arthur David \(NIH/NCI\) [E]" <olsona@dc37a.nci.nih.gov> writes:
I have read at several websites about there being time zone area polygon lists. For example a file called New_Yok.geo.
That'd be news to me. Good news. Can you give URLs for this?
I just now Googled for New_York.geo, but all I found was Doug Royer's expired draft proposal for a registry for such data <http://ietfreport.isoc.org/idref/draft-royer-timezone-registry/>. As far as I know, this has not been implemented. I have seen technical recommendations for a time zone service that might contain the data you're talking about <http://www.calconnect.org/publications/timezoneregistryandservicerecommendat...>, once it gets implemented.
The item google gave you is the site that I heard about it.
So can you please direct me to where I can download the timezone area polygons.
Some timezone area data is mentioned under "Time zone boundaries" in <http://www.twinsun.com/tz/tz-link.htm>. You can look there, but I suspect it won't be exactly what you want.
The only one that looks to have potential was the link to http://www.manifold.net/download/freemaps.html On that site they have a link to a TZ boundary database ftp://69.17.46.170/downloads/free_world/WorldTZ.zip But that link keeps timing out. i did a search for the file itself under google, and the two "mirrors" for it are down as well. Do you happen to know how to get this file? Thanks in advance. B"H John
Well, first of all let me apologize for bringing this up again without being able to offer any further help :-) This question is the reason I joined the list but was somewhat less ambitious - can anyone help me get a hold of a list of countries that belong to each rule/zone definition? Some are simple i.e. the rule name matches the country, but there are some like C-Eur where an additional list is required to understand which countries are included in the time zone. Thank you very much for your help.
The zone.tab file maps countries to zones. You can then traverse the links to get a mapping back from all the zones to countries. CLDR keeps such an updated mapping in http://www.unicode.org/cldr/data/common/supplemental/supplementalData.xml (Search for zoneFormatting. 001 is the UN M.49 code for "the world", and is given to the Etc zones. Etc/Unknown is a CLDR addition that is used where the zone is invalid or unknown.) Mark On 6/30/06, srdjan krajnalic <ludiskr@yahoo.com> wrote:
Well, first of all let me apologize for bringing this up again without being able to offer any further help :-) This question is the reason I joined the list but was somewhat less ambitious - can anyone help me get a hold of a list of countries that belong to each rule/zone definition? Some are simple i.e. the rule name matches the country, but there are some like C-Eur where an additional list is required to understand which countries are included in the time zone.
Thank you very much for your help.
Of all the files I did not look at this one. Please forgive and thank you very much. Now if I only knew where the boundaries are.. O;-) Srdjan _____ From: mark.edward.davis@gmail.com [mailto:mark.edward.davis@gmail.com] On Behalf Of Mark Davis Sent: Friday, June 30, 2006 5:54 PM To: tz@lecserver.nci.nih.gov; ludiskr@yahoo.com Cc: tz@lecserver.nci.nih.gov Subject: Re: Time Zone Area Polygons The zone.tab file maps countries to zones. You can then traverse the links to get a mapping back from all the zones to countries. CLDR keeps such an updated mapping in http://www.unicode.org/cldr/data/common/supplemental/supplementalData.xml (Search for zoneFormatting. 001 is the UN M.49 code for "the world", and is given to the Etc zones. Etc/Unknown is a CLDR addition that is used where the zone is invalid or unknown.) Mark On 6/30/06, srdjan krajnalic <ludiskr@yahoo.com> wrote: Well, first of all let me apologize for bringing this up again without being able to offer any further help :-) This question is the reason I joined the list but was somewhat less ambitious - can anyone help me get a hold of a list of countries that belong to each rule/zone definition? Some are simple i.e. the rule name matches the country, but there are some like C-Eur where an additional list is required to understand which countries are included in the time zone. Thank you very much for your help.
Is it possible that some of the zones are not being parsed correctly because the zone name is separated by space instead of tab? For example: Zone Europe/Gibraltar Instead of Zone Europe/Gibraltar Figured better safe than sorry.
Answers to your questions about zic input format can be found in the zic man page, e.g., <http://linuxcommand.org/man_pages/zic8.html>
participants (5)
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Brak -
Mark Davis -
Olson, Arthur David (NIH/NCI) [E] -
Paul Eggert -
srdjan krajnalic