Conversion between the Western calendar and Chinese calendar
Almanac 历
solar_terms_24 calculates and collects 24 solar terms by using NASA JPL Horizons API.
Accurately calculate times of 24 solar terms using JPL HORIZONS. 用噴射推進實驗室HORIZONS网上天文数据精确计算24节气时间（精确到毫秒）
Chinese astronomical calendar, bazi (四柱八字), and divination for TypeScript. Solar terms (節氣) to sub-second precision, lunar calendar (農曆), flying stars (紫白九星), almanac flags (神煞), Six Ren (大六壬) — zero dependencies.
High-precision Chinese lunar calendar tool based on JPL DE ephemeris.高精度天文农历引擎 (JPL DE440/442)。支持计算节气、月相、公农历转换；支持 JSON/CSV/ICS 格式输出；内置交互模式与命令行工具；跨平台 C++/C 接口。
A precision lunisolar calendar generator that produces structured datasets for Lunar New Year metadata across large year ranges.
Vietnamese Lunar Calendar Expert Engine with Can Chi, Solar Terms, and Auspicious Hours
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