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）
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。
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.
Vietnamese Lunar Calendar Expert Engine with Can Chi, Solar Terms, and Auspicious Hours
A precision lunisolar calendar generator that produces structured datasets for Lunar New Year metadata across large year ranges.
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