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Tong Shu Calendar Reference

Auspicious Wedding Dates for December 2028結婚 · December 2028

By Master Sean Chan · Updated

This month carries Da Xue (大雪) — month flips to 子 on December 6 (Singapore time): the BaZi calendar's sectional boundary for the month. Winter solstice (冬至) lands within this month — the year's lowest Yang point, commonly avoided for major ceremonial events.Below is the universal Chinese metaphysics ranking of every day in December 2028 for a wedding ceremony, derived from the classical Tong Shu (通書). It applies to no specific couple — it shows which days the calendar itself favours or warns against based on the Twelve Officers (建除十二神), Twenty-Eight Mansions (二十八宿), monthly and yearly Shen Sha (神煞), and the Yellow/Black Dao (黃黑道) cycle.

Top-ranked dates this month

31
days in December
26
pass hard requirements
3
rank as 上吉
5
top picks below
DateDay PillarOfficer 建除 Mansion 宿Clash 沖Class
12028-12-10壬申Completing寅 (Tiger)上吉
22028-12-03乙丑滿 Filling未 (Goat)上吉
32028-12-30壬辰Stabilising戌 (Dog)上吉
42028-12-22甲申Completing寅 (Tiger)
52028-12-15丁丑Removing未 (Goat)

All days in December 2028

DateDay PillarOfficerMansion ClashNotable factorsClass
2028-12-01癸亥巳 Snake建除 建 · 宿 斗 · 黃道
2028-12-02甲子午 Horse月德 · 建除 除 · 宿 牛
2028-12-03乙丑滿未 Goat天德 · 宿 女 · 黃道上吉
2028-12-04丙寅申 MonkeyFailed requirement: not_year_break大凶
2028-12-05丁卯酉 Rooster建除 定 · 宿 危
2028-12-06戊辰戌 Dog建除 定
2028-12-07己巳亥 Pig建除 執 · 宿 壁
2028-12-08庚午子 RatFailed requirement: not_month_break大凶
2028-12-09辛未丑 Ox建除 危 · 宿 婁
2028-12-10壬申寅 Tiger月德 · 建除 成 · 宿 胃上吉
2028-12-11癸酉卯 Rabbit建除 收 · 宿 昴 · 黃道
2028-12-12甲戌辰 Dragon建除 開 · 宿 畢
2028-12-13乙亥巳 Snake建除 閉
2028-12-14丙子午 Horse建除 建 · 宿 參 · 黃道
2028-12-15丁丑未 Goat月德合 · 建除 除 · 宿 井
2028-12-16戊寅滿申 MonkeyFailed requirement: not_year_break大凶
2028-12-17己卯酉 Rooster建除 平 · 宿 柳 · 黃道
2028-12-18庚辰戌 Dog建除 定
2028-12-19辛巳亥 Pig建除 執 · 宿 張
2028-12-20壬午子 RatFailed requirement: not_month_break, not_four_separation大凶
2028-12-21癸未丑 Ox建除 危 · 宿 軫
2028-12-22甲申寅 Tiger建除 成 · 黃道
2028-12-23乙酉卯 Rabbit建除 收 · 宿 亢 · 黃道
2028-12-24丙戌辰 Dragon建除 開 · 宿 氐
2028-12-25丁亥巳 Snake月德合 · 建除 閉 · 宿 房
2028-12-26戊子午 Horse建除 建 · 宿 心 · 黃道
2028-12-27己丑未 Goat建除 除 · 黃道
2028-12-28庚寅滿申 MonkeyFailed requirement: not_year_break大凶
2028-12-29辛卯酉 Rooster建除 平 · 宿 斗 · 黃道
2028-12-30壬辰戌 Dog月德 · 建除 定 · 宿 牛上吉
2028-12-31癸巳亥 Pig建除 執 · 宿 女
Personalised next step

BaZi-Aligned Date Report — December 2028

USD 388

A personalised PDF that re-ranks every wedding-suitable day in December 2028 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.

What if my partner’s zodiac clashes with all the top dates?

Both partners’ year branches need to be respected. The universal ranking can’t see your partner; the personalised report does. In practice, the right wedding date is rarely the universally top-ranked one once both charts are considered. That’s expected, not a problem.

Methodology

Each day’s pillar is computed from the 60 Jiazi rotation anchored against the published Tong Shu, not from any single calendar app. The BaZi year flips at Li Chun (立春) and the BaZi month flips at every sectional solar term, both calculated from VSOP87 solar-longitude data so the boundaries land on the right minute. Twelve Officers and the 28 Mansions each rotate deterministically against well-known anchors.

The per-purpose weights are Dong Gong’s (董公擇日) — adjusted where modern almanacs disagree, in favour of the Hong Kong Observatory and Taiwan CWB lineage. Auspicious stars add to the score, taboo stars subtract, the day’s officer and mansion shift it further, and Yellow Dao adds a final small bonus. The final number gets capped at 100 and mapped to one of five tiers.