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Tong Shu Calendar Reference

Auspicious Business Opening Dates for November 2026開業 · November 2026

By Master Sean Chan · Updated

This month carries Li Dong (立冬) — start of the BaZi winter on November 7 (Singapore time): the BaZi calendar's sectional boundary for the month. Winter starts; Water-element days take precedence in many ranking shifts that follow.Below is the universal Chinese metaphysics ranking of every day in November 2026 for opening a business (開市), derived from the classical Tong Shu (通書). Opening is treated as a 'beginning' — the rules favour 開 (Opening) and 建 (Establishing) officers and Yellow Dao days carrying 天德 / 月德 protection.

Top-ranked dates this month

30
days in November
26
pass hard requirements
8
rank as 上吉
5
top picks below
DateDay PillarOfficer 建除 Mansion 宿Clash 沖Class
12026-11-05丙戌建 Establishing箕辰 (Dragon)上吉
22026-11-14乙未成 Completing婁丑 (Ox)上吉
32026-11-08己丑滿 Filling女未 (Goat)上吉
42026-11-23甲辰執 Holding星戌 (Dog)上吉
52026-11-26丁未成 Completing軫丑 (Ox)上吉

All days in November 2026

DateDay PillarOfficerMansion ClashNotable factorsClass
2026-11-01壬午成氐子 Rat建除 成 · 宿 氐吉
2026-11-02癸未收房丑 Ox—平
2026-11-03甲申開心寅 Tiger建除 開 · 黃道上吉
2026-11-04乙酉閉尾卯 Rabbit建除 閉 · 黃道凶
2026-11-05丙戌建箕辰 Dragon天德 · 月德 · 宿 箕上吉
2026-11-06丁亥除斗巳 Snake四絕 · 宿 斗 · 黃道凶
2026-11-07戊子除牛午 HorseFailed requirement: not_year_break大凶
2026-11-08己丑滿女未 Goat月德合 · 建除 滿 · 黃道上吉
2026-11-09庚寅平虛申 Monkey天德合 · 建除 平 · 宿 虛平
2026-11-10辛卯定危酉 Rooster宿 危平
2026-11-11壬辰執室戌 Dog建除 執 · 黃道吉
2026-11-12癸巳破壁亥 PigFailed requirement: not_month_break大凶
2026-11-13甲午危奎子 Rat月德 · 建除 危 · 黃道吉
2026-11-14乙未成婁丑 Ox天德 · 建除 成 · 黃道上吉
2026-11-15丙申收胃寅 Tiger—平
2026-11-16丁酉開昴卯 Rabbit建除 開吉
2026-11-17戊戌閉畢辰 Dragon建除 閉 · 黃道凶
2026-11-18己亥建觜巳 Snake月德合 · 黃道吉
2026-11-19庚子除參午 HorseFailed requirement: not_year_break大凶
2026-11-20辛丑滿井未 Goat建除 滿 · 宿 井 · 黃道上吉
2026-11-21壬寅平鬼申 Monkey建除 平平
2026-11-22癸卯定柳酉 Rooster—平
2026-11-23甲辰執星戌 Dog月德 · 建除 執 · 黃道上吉
2026-11-24乙巳破張亥 PigFailed requirement: not_month_break大凶
2026-11-25丙午危翼子 Rat建除 危 · 黃道平
2026-11-26丁未成軫丑 Ox建除 成 · 宿 軫 · 黃道上吉
2026-11-27戊申收角寅 Tiger—平
2026-11-28己酉開亢卯 Rabbit月德合 · 建除 開 · 宿 亢上吉
2026-11-29庚戌閉氐辰 Dragon天德合 · 建除 閉 · 宿 氐凶
2026-11-30辛亥建房巳 Snake黃道吉
Personalised next step

BaZi-Aligned Date Report — November 2026

USD 388

A personalised PDF that re-ranks every business opening-suitable day in November 2026 against your BaZi (and, for weddings/ROM, your partner’s BaZi). It surfaces:

Order the report →

See the full glossary of classical date-selection terms in the BaZi Glossary & Auxiliary Stars.

Further reading from the blog

Selected posts from Master Sean Chan's blog covering this topic and closely related ones in practice:

Frequently asked

Why isn’t my day on the list of top 5?

The top list is the universal ranking before any personal adjustment. Many couples find their best date isn’t in the top 5. Once you account for your day pillars, the right day often shifts. That’s exactly the gap the BaZi-Aligned Date Report fills.

What does 大凶 mean and can it ever be overridden?

大凶 means the day fails a hard classical requirement: 月破 (month break), 歲破 (year break), or 四離/四絕 (a quarter-day boundary). These cannot be overridden by personal alignment; they are excluded categorically. Choose another day.

Why don’t you show times here?

Hour selection is personal. The right hour depends on your day pillar and the chosen day’s element relationship to it. Publishing universal “auspicious hours” misleads readers into thinking a generic hour is safe; it isn’t. Hours are included in the personalised report.

Where do these scores come from?

The classical Tong Shu (通書) tradition: 建除十二神 (Twelve Officers), 二十八宿 (Twenty-Eight Mansions), 月德 / 天德 (monthly and yearly virtue stars), 黃黑道 (Yellow/Black Dao), and the Dong Gong (董公) per-purpose rules. We compute these directly from astronomical solar terms — no app shortcuts.

Should I open the business on the same day as my company registration?

If you can — yes. Aligning the opening with the legal incorporation compounds the day’s influence on both events. If they have to be different, prioritise the opening (the customer-facing first day) over the registration date.

Methodology

Day pillars derive from the standard 60 Jiazi anchor (sexagenary day cycle, anchored against the published Tong Shu). Year pillars switch on Li Chun (立春), the first solar term of the BaZi year, computed from the truncated VSOP87 series for solar longitude. Month pillars switch on each sectional solar term. The Twelve Officers are the day branch’s offset from the month branch; the Twenty-Eight Mansions cycle every 28 days against an authoritative anchor.

Per-purpose rules follow the Dong Gong (董公擇日) tradition with adjustments encoded in our open purpose_rules.yaml. Scores are additive over the day’s present 神煞, the officer/mansion preference, and the Yellow Dao bonus, then clamped to 0–100 and classified.