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Tong Shu Calendar Reference

Auspicious ROM Dates for June 2027註冊結婚 · June 2027

By Master Sean Chan · Updated

This month carries Mang Zhong (芒種) — month flips to 午 on June 6 (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 2027 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
2
rank as 上吉
5
top picks below
DateDay PillarOfficer 建除 Mansion 宿Clash 沖Class
12027-06-13丙寅成 Completing氐申 (Monkey)上吉
22027-06-02乙卯開 Opening觜酉 (Rooster)上吉
32027-06-15戊辰開 Opening心戌 (Dog)吉
42027-06-18辛未除 Removing斗丑 (Ox)吉
52027-06-25戊寅成 Completing奎申 (Monkey)吉

All days in June 2027

DateDay PillarOfficerMansion ClashNotable factorsClass
2027-06-01甲寅收畢申 Monkey建除 收吉
2027-06-02乙卯開觜酉 Rooster月德合 · 建除 開上吉
2027-06-03丙辰閉參戌 Dog天德合 · 建除 閉 · 黃道吉
2027-06-04丁巳建井亥 Pig建除 建 · 宿 井吉
2027-06-05戊午建鬼子 Rat建除 建 · 黃道平
2027-06-06己未除柳丑 Ox—吉
2027-06-07庚申滿星寅 Tiger黃道吉
2027-06-08辛酉平張卯 Rabbit月德合 · 建除 平 · 宿 張吉
2027-06-09壬戌定翼辰 Dragon建除 定吉
2027-06-10癸亥執軫巳 Snake宿 軫吉
2027-06-11甲子破角午 HorseFailed requirement: not_month_break大凶
2027-06-12乙丑危亢未 GoatFailed requirement: not_year_break大凶
2027-06-13丙寅成氐申 Monkey月德 · 建除 成 · 宿 氐上吉
2027-06-14丁卯收房酉 Rooster建除 收 · 宿 房 · 黃道吉
2027-06-15戊辰開心戌 Dog建除 開 · 宿 心吉
2027-06-16己巳閉尾亥 Pig建除 閉平
2027-06-17庚午建箕子 Rat建除 建 · 黃道平
2027-06-18辛未除斗丑 Ox月德合 · 宿 斗吉
2027-06-19壬申滿牛寅 Tiger黃道吉
2027-06-20癸酉平女卯 Rabbit四離 · 建除 平 · 宿 女凶
2027-06-21甲戌定虛辰 Dragon建除 定吉
2027-06-22乙亥執危巳 Snake宿 危平
2027-06-23丙子破室午 HorseFailed requirement: not_month_break大凶
2027-06-24丁丑危壁未 GoatFailed requirement: not_year_break大凶
2027-06-25戊寅成奎申 Monkey建除 成吉
2027-06-26己卯收婁酉 Rooster建除 收 · 黃道吉
2027-06-27庚辰開胃戌 Dog建除 開吉
2027-06-28辛巳閉昴亥 Pig月德合 · 建除 閉平
2027-06-29壬午建畢子 Rat建除 建 · 黃道平
2027-06-30癸未除觜丑 Ox—吉
Personalised next step

BaZi-Aligned Date Report — June 2027

USD 388

A personalised PDF that re-ranks every ROM / civil registration-suitable day in June 2027 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

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.