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mattbornski
Citation for tz_world.json
Where did the data for tz_world.json come from?
Can you provide a citation?
Specifically, I'm interested in where the geometries came from.
Oh man do I wish I had that information for you. That would have been super useful. Here's what I do remember:
I found a file describing timezones in some kind in a GIS format on a forum for GIS people. I don't remember which forum. It was either KML or a shapefile. I think I put together a Python script to extract the boundaries into lat/longs at waypoints, but otherwise I believe the geometries are the same as that original file which I got from some forum posting on some GIS site.
I really should have kept better track for attribution. I'm pretty sure there's not a licensing concern since timezone boundaries seem like very public information, but again, should have kept better track of it.
Oddly enough another 18 months haven't clarified this issue for me so I'm going to close it.
@dukedave Thanks to @benjie for identifying the source of the data in https://github.com/mattbornski/tzwhere/issues/8#issuecomment-93569359