City-centre coordinate subset (province and prefecture entries), downloaded 2026-10-13.
Source: DQinYuan/chinese_province_city_area_mapper, cpca/resources/adcodes.csv
https://github.com/DQinYuan/chinese_province_city_area_mapper
Software license MIT; copyright (c) 2018 QinYuan Du.
Underlying geographic data: Vonng/adcode, CC BY 4.0.
https://github.com/Vonng/adcode
https://creativecommons.org/licenses/by/4.0/
Data baseline circa 2016; boundaries and names may have changed. Not for navigation or exact surveying.
Modifications: subset to province/city centres, rounded 5 decimals; grouped by province; added IANA time-zone identifiers. No endorsement by original authors.
Source CSV SHA-256: 66948fa1519ba053f22b8c2d05c897c9b19c44cdc3044e464b52f0143ff418fe

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