玄ZenTellATLAS OF WISDOM TRADITIONS

Calendars & date selection / ENCYCLOPEDIA

Twelve day officers

建除十二神

The twelve day officers are almanac labels arranged through month and day branches; the cycle and its auspicious interpretations are separate.

Introductory article2 min readUpdated 2026-09-30AI-assisted · Editorially checked

At a glance

Number of labels
Twelve labels, from Establish to Close

Definition and scope

The twelve officers are cyclic almanac categories rather than twelve astronomical bodies. Their arrangement relates a month’s branch to the day branch. It is not simply an uninterrupted twelve-day count from a Gregorian starting date. Month-boundary conventions matter, particularly near solar-term transitions in sources that use those boundaries.

Structure and details

The sequence is Establish, Remove, Full, Level, Settle, Hold, Break, Danger, Complete, Receive, Open and Close. A historical rule begins Establish on the month’s branch and advances through the branches. Verbal associations help explain the labels, but Open does not guarantee business success and Danger does not predict an accident.

Example and history

Under the historical convention of a Yin first month, a Yin day is Establish, a Mao day Remove and a Chen day Full. This demonstrates arrangement rather than advice for a particular date. The source also records disagreements in auspicious judgments, making it useful for comparing a classification rule with differing interpretations.

Contexts and limits

The officers show how almanacs organize time and activities; they do not assess character, ability or destiny. A calendar tool should state its month boundary and source. Necessary arrangements should not be delayed solely because of a label. Historical records should preserve the full date and original category rather than only saying auspicious day.

References & further reading

Historical sources document ideas and rules of their time, not empirical proof of predictive accuracy. Source notes identify the nature and scope of each reference.

  1. 欽定協紀辨方書(四庫全書本)/卷04Primary / tradition source

    Historical source for the twelve day officers and their month-branch rule; it records disagreements about auspiciousness.

  2. 欽定協紀辨方書(四庫全書本)/卷09Primary / tradition source

    Historical discussion of differing almanac rules and tabulation.