Methodology & Sources
All calculators on this site are powered by lunar-typescript, an open-source library that implements traditional Chinese calendar algorithms; nothing here is generated by a language model at build time.
All calendar conversions, Four Pillars (BaZi), and daily almanac data on this site are computed with lunar-typescript, an open-source library that implements the same traditional Chinese calendar algorithms used by Ask The Stalks' main site.
Solar terms follow astronomical calculation; daily do's and don'ts (宜忌) follow the Xieji Bianfangshu (协纪辨方书) tradition as encoded in that library. Nothing on this page is computed by, or written by, a language model at build time — all copy is authored and reviewed ahead of time.
This site is a folk-culture reference for entertainment purposes. It does not provide financial, medical, or legal advice.
| Calendar library | lunar-typescript (open source) |
|---|---|
| Solar terms | Astronomical calculation |
| Daily do's and don'ts | Xieji Bianfangshu (协纪辨方书) tradition |
| Content authoring | Human-written and reviewed; no model calls at build time |
Is this a substitute for professional advice?
No — this is a folk-culture reference for entertainment purposes and does not provide financial, medical, or legal advice.
Which library computes the calendar data?
lunar-typescript, an open-source implementation of traditional Chinese calendar algorithms.
How often is the underlying data updated?
The calendar rules themselves don't change; the date below reflects when this page's methodology text was last reviewed.
Solar terms: astronomical calculation. Daily do's and don'ts: Xieji Bianfangshu (协纪辨方书) tradition · Last updated 2026-09-11