開市 · Auspicious Dates
Auspicious Days for Opening a Business in September 2026
This is a past month, kept for reference.
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September 2026: 6 Good, 14 Fair, 10 Avoid
Calendar
Every date, best first
- Thu 3 SeptGood
- Sat 5 SeptGood
- Wed 16 SeptGood
- Fri 18 SeptGood
- Mon 28 SeptGood
- Wed 30 SeptGood
- Wed 2 SeptFair
- Fri 4 SeptFair
- Tue 8 SeptFair
- Wed 9 SeptFair
- Sat 12 SeptFair
- Sun 13 SeptFair
- Tue 15 SeptFair
- Thu 17 SeptFair
- Sun 20 SeptFair
- Mon 21 SeptFair
- Thu 24 SeptFair
- Fri 25 SeptFair
- Sun 27 SeptFair
- Tue 29 SeptFair
- Tue 1 SeptAvoid
破 Destruction day, the month breaker
- Sun 6 SeptAvoid
閉 Close day
- Mon 7 SeptAvoid
閉 Close day
- Thu 10 SeptAvoid
楊公忌 Yang Gong taboo day
- Fri 11 SeptAvoid
歲破 Year breaker: clashes the Horse year
- Mon 14 SeptAvoid
破 Destruction day, the month breaker
- Sat 19 SeptAvoid
閉 Close day
- Tue 22 SeptAvoid
四離 Eve of an equinox or solstice
- Wed 23 SeptAvoid
歲破 Year breaker: clashes the Horse year
- Sat 26 SeptAvoid
破 Destruction day, the month breaker
About opening a business dates
Opening a business is 開市 in the almanac: the first day you trade or welcome customers. The classic choices are 開 Open, 成 Success and 滿 Full, a day of abundance that suits trade and collecting payments.
We skip Destruction and Close days (Close is the opposite of opening), year-breaker days, the eve of each season change and Yang Gong taboo days. Hungry Ghost month is not excluded, but many shop owners still avoid launching then.
Add the owner’s or main partner’s birth year to hide days that clash with them. The day you take your first sale matters more than the day you register the company.
Questions about opening a business dates
Is it the registration date or the opening date that matters?
Traditionally, the opening: the first day you trade, open the doors or take the first sale. Company registration is administrative and rarely chosen by date.
Does the time of day matter?
Many owners light the first incense or open the shutters at an auspicious hour in the morning. This page covers the day only. A personal report can add the hours.
What if my only available date is a Fair day?
A Fair day has no traditional exclusions. You can soft-open on it and hold the grand opening ceremony on a Good day later.
What about Hungry Ghost month?
The classic opening rules do not exclude it, so those days are not greyed out. Many shop owners in Singapore and Malaysia still prefer to launch after the 7th lunar month.
Is it the same for an online business?
The same principles are used for the launch date of a website or online shop. Treat the day orders open as the opening.
Want a date chosen for your whole family's charts?
Get a personal date selection report. It checks every household member's full BaZi chart, not just their animal, and suggests the best days and hours. Join the waitlist and we'll email you when it opens.
A simplified traditional method for reflection and cultural interest. For a wedding, a business launch or a major purchase, many families also consult a feng shui master.