Licenses

City data

Birth-city search uses GeoNames cities15000 extract (CC BY 4.0). Rebuild with npm run build:cities after updating data/geonames/raw/cities15000.txt. IANA time zones resolved via geo-tz (boundary data ODbL).

Software

• tyme4ts — MIT
• lunar-javascript — MIT
• astronomy-engine — MIT (available for extended solar verification)
• geo-tz — MIT (timezone-boundary-builder data ODbL — attribution in footer)
• pinyin-pro — MIT
• to-jyutping — BSD-2-Clause
• opencc-js — MIT AND Apache-2.0
• Fonts: Ma Shan Zheng, Zhi Mang Xing, Liu Jian Mao Cao — SIL OFL 1.1