What are the twelve day officers?

A cycle of twelve labels that turns one step each day: Establish, Remove, Full, Balance, Stable, Initiate, Destruction, Danger, Success, Collect, Open and Close. Which label a day carries depends on its earthly branch and the solar month it falls in. Almanacs across East Asia have used the cycle for centuries to choose dates.

Is choosing a date really a business practice?

In several markets it is institutional rather than private. The Indian exchanges NSE and BSE close normal trading on Diwali and hold a one-hour Muhurat session at an astrologically chosen time, a practice BSE began in 1957. In Japan the rokuyo cycle still guides contract dates and groundbreaking ceremonies.

Which days should I avoid?

Destruction, Danger and Close. Destruction breaks what you want to last, Danger is read as precarious for travel and risk, and Close is the opposite of opening. The tool lists them so you can see what is being skipped rather than take it on trust.

擇日 · CHOOSING A DAY

When to start,
by the old calendar

Free · no sign-up · the next 90 days

What is it for

First day of trading, a launch, a grand opening. Showing the next 90 days.

成 Success開 Open滿 Full定 Stable

9/10Thu滿FullFilling up. Good for stocking, storing and moving in.丁亥Ding Hai
9/12Sat定StableSettling. The day things are fixed in place — contracts sit well here.己丑Ji Chou
9/16Wed成SuccessCompletion. The strongest day for opening and finishing.癸巳Gui Si
9/18Fri開OpenOpening. Good for launches and first days.乙未Yi Wei
9/22Tue滿FullFilling up. Good for stocking, storing and moving in.己亥Ji Hai
9/24Thu定StableSettling. The day things are fixed in place — contracts sit well here.辛丑Xin Chou
9/28Mon成SuccessCompletion. The strongest day for opening and finishing.乙巳Yi Si
9/30Wed開OpenOpening. Good for launches and first days.丁未Ding Wei
10/4Sun滿FullFilling up. Good for stocking, storing and moving in.辛亥Xin Hai
10/6Tue定StableSettling. The day things are fixed in place — contracts sit well here.癸丑Gui Chou
10/11Sun成SuccessCompletion. The strongest day for opening and finishing.戊午Wu Wu
10/13Tue開OpenOpening. Good for launches and first days.庚申Geng Shen
10/17Sat滿FullFilling up. Good for stocking, storing and moving in.甲子Jia Zi
10/19Mon定StableSettling. The day things are fixed in place — contracts sit well here.丙寅Bing Yin
10/23Fri成SuccessCompletion. The strongest day for opening and finishing.庚午Geng Wu
10/25Sun開OpenOpening. Good for launches and first days.壬申Ren Shen
10/29Thu滿FullFilling up. Good for stocking, storing and moving in.丙子Bing Zi
10/31Sat定StableSettling. The day things are fixed in place — contracts sit well here.戊寅Wu Yin
11/4Wed成SuccessCompletion. The strongest day for opening and finishing.壬午Ren Wu
11/6Fri開OpenOpening. Good for launches and first days.甲申Jia Shen
11/7Sat開OpenOpening. Good for launches and first days.乙酉Yi You
11/11Wed滿FullFilling up. Good for stocking, storing and moving in.己丑Ji Chou
11/13Fri定StableSettling. The day things are fixed in place — contracts sit well here.辛卯Xin Mao
11/17Tue成SuccessCompletion. The strongest day for opening and finishing.乙未Yi Wei
11/19Thu開OpenOpening. Good for launches and first days.丁酉Ding You
11/23Mon滿FullFilling up. Good for stocking, storing and moving in.辛丑Xin Chou
11/25Wed定StableSettling. The day things are fixed in place — contracts sit well here.癸卯Gui Mao
11/29Sun成SuccessCompletion. The strongest day for opening and finishing.丁未Ding Wei
12/1Tue開OpenOpening. Good for launches and first days.己酉Ji You

The month is set by the solar term the day falls in, computed from the sun’s apparent longitude, and the officer follows from the day’s earthly branch. This is a calendar tradition, not a forecast — take it as one input among the practical ones.

What the twelve officers are

A cycle of twelve labels turns one step each day — Establish, Remove, Full, Balance, Stable, Initiate, Destruction, Danger, Success, Collect, Open, Close. Which label a day carries comes from its earthly branch measured against the solar month it falls in. The cycle is old and plain: some days are read as opening, some as closing, and most as neither.

This is not a fringe habit

Choosing a date is institutional in several markets. On Diwali the Indian exchanges NSE and BSE shut normal trading and hold a single one-hour Muhurat session at a time chosen astrologically — BSE has done it since 1957. In Japan the rokuyo cycle still shapes when contracts are signed and when a Shinto groundbreaking is held. In Hong Kong the brokerage CLSA has published a Feng Shui Index every year since 1992.

Why the month matters

The officer for a day depends on which solar month it sits in, and solar months do not begin on fixed calendar dates. They begin the moment the sun reaches a particular apparent longitude, which drifts by hours from year to year. This tool computes that moment rather than reading it off a table, so days near a boundary land in the right month.

How to use it

Pick what the day is for. The list shows the next 90 days that suit it, best first. The days to avoid are listed too — not to alarm you, but so you can see what is being skipped and judge for yourself. A date is one input among many; the lease, the crew and the weather still matter more.

Where this comes from

The same engine runs Nakchal Saju, a Korean service that picks moving dates and office directions for company owners. If you want your own chart rather than a date, the BaZi calculator is here.