Chinese timezones 1970

[Eric Muller]

Jesper Norgaard Welen wrote:
> I have investigated the timezones around 1970 on the
> http://www.astro.com/atlas site, and here are the results. I am attaching a
> GIF file of the map I have built based on this information. 

Thanks to this data, I have put together a map in shapefile format for 
the timezone of China. It's available along with the recipe and 
necessary data files (including a mapping county->tz timezone and a 
concise description of the zones) at <http://efele.net/maps/tz/ch/>.

Comments welcome,
Eric.