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
  • 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
  • 12/5Sat滿FullFilling up. Good for stocking, storing and moving in.癸丑Gui Chou
  • 12/8Tue定StableSettling. The day things are fixed in place · contracts sit well here.丙辰Bing Chen
  • 12/12Sat成SuccessCompletion. The strongest day for opening and finishing.庚申Geng Shen
  • 12/14Mon開OpenOpening. Good for launches and first days.壬戌Ren Xu
  • 12/18Fri滿FullFilling up. Good for stocking, storing and moving in.丙寅Bing Yin
  • 12/20Sun定StableSettling. The day things are fixed in place · contracts sit well here.戊辰Wu Chen
  • 12/24Thu成SuccessCompletion. The strongest day for opening and finishing.壬申Ren Shen
  • 12/26Sat開OpenOpening. Good for launches and first days.甲戌Jia Xu
  • 12/30Wed滿FullFilling up. Good for stocking, storing and moving in.戊寅Wu Yin
  • 1/1Fri定StableSettling. The day things are fixed in place · contracts sit well here.庚辰Geng Chen
  • 1/6Wed成SuccessCompletion. The strongest day for opening and finishing.乙酉Yi You
  • 1/8Fri開OpenOpening. Good for launches and first days.丁亥Ding Hai
  • 1/12Tue滿FullFilling up. Good for stocking, storing and moving in.辛卯Xin Mao
  • 1/14Thu定StableSettling. The day things are fixed in place · contracts sit well here.癸巳Gui Si
  • 1/18Mon成SuccessCompletion. The strongest day for opening and finishing.丁酉Ding 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.