Open data
The twelve earthly branches
The twelve earthly branches with their zodiac animal, five-element attribution and two-hour window.
12 rows · 9 columns · version 1.0.0 · updated 2026-09-16
Conventions taken
The fourth zodiac animal in Vietnam is the CAT, unlike China and most of East Asia which assign the Rabbit to the branch Mao. This dataset keeps the Vietnamese naming. The hour windows are in Vietnam time, and the hour of Ty straddles midnight, running from 23:00 of the previous day to 01:00.
| id | thu_tu | chi | con_giap | ngu_hanh | ngu_hanh_en | khung_gio | nguon | ghi_chu |
|---|---|---|---|---|---|---|---|---|
| 1 | 1 | Tý | Chuột | Thủy | Water | 23h-1h | tinh-toan | |
| 2 | 2 | Sửu | Trâu | Thổ | Earth | 1h-3h | tinh-toan | |
| 3 | 3 | Dần | Hổ | Mộc | Wood | 3h-5h | tinh-toan | |
| 4 | 4 | Mão | Mèo | Mộc | Wood | 5h-7h | tinh-toan | Việt Nam dùng Mèo, Trung Quốc và phần lớn Đông Á dùng Thỏ cho chi này |
| 5 | 5 | Thìn | Rồng | Thổ | Earth | 7h-9h | tinh-toan | |
| 6 | 6 | Tỵ | Rắn | Hỏa | Fire | 9h-11h | tinh-toan | |
| 7 | 7 | Ngọ | Ngựa | Hỏa | Fire | 11h-13h | tinh-toan | |
| 8 | 8 | Mùi | Dê | Thổ | Earth | 13h-15h | tinh-toan | |
| 9 | 9 | Thân | Khỉ | Kim | Metal | 15h-17h | tinh-toan | |
| 10 | 10 | Dậu | Gà | Kim | Metal | 17h-19h | tinh-toan | |
| 11 | 11 | Tuất | Chó | Thổ | Earth | 19h-21h | tinh-toan | |
| 12 | 12 | Hợi | Lợn | Thủy | Water | 21h-23h | tinh-toan |
What the columns mean
id(string)- Stable row identifier, unchanged across versions
thu_tu(int)- Position in the cycle of 12, Tý is 1 and Hợi is 12
chi(string)- Earthly Branch name
con_giap(string)- Earthly branch animal, using Vietnamese naming
ngu_hanh(string)- Five elements of the branch
ngu_hanh_en(string)- Five elements of the branch, in English
khung_gio(string)- Two hour range in the day corresponding to the branch, Vietnam time
nguon(string)- Source text for this row, or tinh-toan when the value is computed
ghi_chu(string)- Where the schools disagree on this row; empty when they do not
Licence and limitations
Released under CC BY 4.0: reuse commercially, adapt freely, attribution is all that is asked.
Nguồn: Nhật Nguyệt (nhatnguyet.org), CC BY 4.0
This dataset records cultural and calendrical conventions, not scientific claims. It is suitable for cultural research, NLP, and calendar applications. It is not intended for predicting events, evaluating people, or making decisions that affect anyone.
Other reference tables
- The ten heavenly stems
- Compatibility matrix of the 12 earthly branches
- The twelve day officers (Thap Nhi Truc)
- The 22 Major Arcana of the Tarot
- The 24 solar terms
- The 56 Minor Arcana cards
- Sexagenary cycle table (60 Hoa Giap)
- The 64 hexagrams of the I Ching
- The nine presiding stars (Cuu Dieu)
- Zodiac sign boundaries year by year, 1950 to 2050
- Letter to number tables, Pythagorean and Chaldean
- Kua number and Bat Trach directions
- Auspicious hours across the sixty-day stem-branch cycle
- The sixty stem-branch pairs crossed: sounds, harmony, clash and element relation
- Vietnamese festivals mapped to solar dates, 2026 to 2030
- Vietnamese festivals, seasonal feasts and public holidays
- Vietnamese lunisolar calendar, 1900 to 2100
- Start moments of the 24 solar terms, 1900 to 2100
- Folk inauspicious days mapped onto solar dates, 2026 to 2035
- Tam Tai, Kim Lau and Hoang Oc by birth year and year in question
- Segments of the three Lo Ban rules