Almanac & sky · NUMORA
Almanac Day Calculator
Day pillar, clash animal, a short Jianchu list — not a full Tongshu.
Open interactive calculatorHow to use
Jianchu from solar-month branch vs day branch. Yi/ji is the twelve-officer short list, sourced.
Formula
Day pillar from Julian Day; Jianchu = (day − month) mod 12
FAQ
Is this Almanac Day calculator accurate?
The formula and assumptions are shown on the page, and the engine is covered by audit tests. Results are for reference — not financial or medical advice.
Do I need an account?
No. Calculations run in your browser. Recents can stay on this device.
What inputs do I need?
Jianchu from solar-month branch vs day branch. Yi/ji is the twelve-officer short list, sourced.
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