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Tong Shu Calendar Reference

Auspicious ROM Dates for June 2026註冊結婚 · June 2026

By Master Sean Chan · Updated

This month carries Mang Zhong (芒種) — month flips to 午 on June 5 (Singapore time): the BaZi calendar's sectional boundary for the month. Summer solstice (夏至) follows shortly after — peak Yang energy before the long descent.Below is the universal Chinese metaphysics ranking of every day in June 2026 for civil registration of marriage (ROM in Singapore), derived from the classical Tong Shu (通書). ROM uses a tighter rule set than a full ceremonial wedding — registration is a single act that benefits from 開 (Opening) and 成 (Completing) days and avoids 閉 (Closing) days more strictly than a full banquet.

Top-ranked dates this month

30
days in June
26
pass hard requirements
3
rank as 上吉
5
top picks below
DateDay PillarOfficer 建除 Mansion 宿Clash 沖Class
12026-06-18丙寅成 Completing箕申 (Monkey)上吉
22026-06-08丙辰開 Opening星戌 (Dog)上吉
32026-06-02庚戌執 Holding畢辰 (Dragon)上吉
42026-06-06甲寅成 Completing鬼申 (Monkey)吉
52026-06-30戊寅成 Completing畢申 (Monkey)吉

All days in June 2026

DateDay PillarOfficerMansion ClashNotable factorsClass
2026-06-01己酉定昴卯 Rabbit建除 定吉
2026-06-02庚戌執畢辰 Dragon月德 · 黃道上吉
2026-06-03辛亥破觜巳 SnakeFailed requirement: not_month_break大凶
2026-06-04壬子危參午 HorseFailed requirement: not_year_break大凶
2026-06-05癸丑危井未 Goat建除 危 · 宿 井 · 黃道平
2026-06-06甲寅成鬼申 Monkey建除 成吉
2026-06-07乙卯收柳酉 Rooster建除 收 · 黃道吉
2026-06-08丙辰開星戌 Dog月德 · 建除 開上吉
2026-06-09丁巳閉張亥 Pig建除 閉 · 宿 張平
2026-06-10戊午建翼子 Rat建除 建 · 黃道平
2026-06-11己未除軫丑 Ox宿 軫吉
2026-06-12庚申滿角寅 Tiger黃道吉
2026-06-13辛酉平亢卯 Rabbit月德合 · 建除 平 · 宿 亢吉
2026-06-14壬戌定氐辰 Dragon建除 定 · 宿 氐吉
2026-06-15癸亥執房巳 Snake宿 房吉
2026-06-16甲子破心午 HorseFailed requirement: not_month_break, not_year_break大凶
2026-06-17乙丑危尾未 Goat建除 危 · 黃道平
2026-06-18丙寅成箕申 Monkey月德 · 建除 成上吉
2026-06-19丁卯收斗酉 Rooster建除 收 · 宿 斗 · 黃道吉
2026-06-20戊辰開牛戌 Dog四離 · 建除 開平
2026-06-21己巳閉女亥 Pig建除 閉 · 宿 女平
2026-06-22庚午建虛子 Rat建除 建 · 黃道平
2026-06-23辛未除危丑 Ox月德合 · 宿 危吉
2026-06-24壬申滿室寅 Tiger黃道吉
2026-06-25癸酉平壁卯 Rabbit建除 平 · 黃道平
2026-06-26甲戌定奎辰 Dragon建除 定吉
2026-06-27乙亥執婁巳 Snake—吉
2026-06-28丙子破胃午 HorseFailed requirement: not_month_break, not_year_break大凶
2026-06-29丁丑危昴未 Goat建除 危 · 黃道平
2026-06-30戊寅成畢申 Monkey建除 成吉
Personalised next step

BaZi-Aligned Date Report — June 2026

USD 388

A personalised PDF that re-ranks every ROM / civil registration-suitable day in June 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.

Does the timing of ROM matter as much as a wedding ceremony?

Energetically yes — the registration is the legal-binding moment, and the day-pillar element it sits on travels with the marriage record. Practically the rule set is slightly looser than a full banquet (no need for 喜慶 stars), but month-break and year-break disqualifiers still apply absolutely.

Methodology

Pillars use the 60 Jiazi day cycle anchored to the published Tong Shu. The BaZi year flips at Li Chun, the BaZi month flips at each sectional solar term — both computed from VSOP87 ephemeris data. The Twelve Officers (建除) and the 28 Mansions each have their own deterministic rotation against an authoritative anchor.

Weights come from the Dong Gong (董公擇日) school. Auspicious 神煞 add, taboo 神煞 subtract, the officer and mansion adjust, Yellow Dao adds a small bonus on top. Sum, clamp to 0–100, classify. No app shortcuts.