Year of the Ox: Calendar Boundaries, Elements, and Cycle Place
By the Astrolivo editorial team
In the Chinese zodiac, the Ox is the second of the twelve animals, corresponding to the Earthly Branch Chou. Because the traditional Chinese calendar is lunisolar, the Year of the Ox begins on Lunar New Year's Day—which falls in January or February—rather than on January 1.
If you were born in a Gregorian year associated with the Ox, such as 1949, 1985, 1997, or 2009, checking the exact calendar date is essential. Anyone born in January or February before that year's Lunar New Year start date was born in the closing weeks of the preceding Year of the Rat.
Position in the 12-Animal and 60-Year Cycles
In the fixed twelve-animal cycle, the Ox (Chou) follows the first animal, the Rat (Zi), and comes immediately before the third animal, the Tiger (Yin). Historical museum collections, as summarized by the Victoria and Albert Museum, show that the twelve-animal sequence has been used to represent years since the Han period, while popular tales about how the Ox and Rat finished the zodiac race belong to folklore rather than history.
In the 60-year sexagenary cycle (Ganzhi), the second Earthly Branch (Chou) pairs with the even-numbered Heavenly Stems (Yi, Ding, Ji, Xin, Gui). Every 12 years the Ox returns with a different stem and element, completing a full five-element rotation every 60 years.
Verified Example Years of the Ox (Non-Exhaustive)
The table below includes only the verified Ox years present in our current Hong Kong Observatory reference dataset. It is non-exhaustive and does not list every historical or future Ox year outside this verified dataset.
| Gregorian Year | Stem-Branch & HKO Header | Element | Start Date (Lunar New Year) | End Date (Last Day of Lunar Year) | Preceding Animal (Before Start Date) | Year Detail Link |
|---|---|---|---|---|---|---|
| 1949 | Ji-chou (year of the Ox) | Earth | 1949-01-29 | 1950-02-16 | Rat | 1949 Details |
| 1985 | Yi-chou (year of the Ox) | Wood | 1985-02-20 | 1986-02-08 | Rat | 1985 Details |
| 1997 | Ding-chou (year of the Ox) | Fire | 1997-02-07 | 1998-01-27 | Rat | 1997 Details |
| 2009 | Ji-chou (year of the Ox) | Earth | 2009-01-26 | 2010-02-13 | Rat | 2009 Details |
How to Verify Whether Your Birth Date Belongs to a Listed Ox Year
To determine your zodiac year from this table, match your full birth date (year, month, and day) against the inclusive Start Date and End Date range in each row, including the row that started in the preceding Gregorian year if you were born in January or February. You can also open the corresponding Year Detail Link (such as 1949 Details or 1985 Details) for a dedicated breakdown of that single lunar year.
Consider these hypothetical birth-date examples:
- Hypothetical birth on February 10, 1985: The 1985 Yi-chou Ox year had a relatively late Lunar New Year on February 20, 1985. A person born on February 10, 1985, was born before the transition and therefore belongs to the preceding Jia-zi Wood Rat year (1984 Details, which ended on February 19, 1985).
- Hypothetical birth on February 25, 1985: Because February 25 is on or after February 20, 1985 (and before the end date of February 8, 1986), this birth date falls squarely inside the Yi-chou Wood Ox year (1985 Details).
- Hypothetical birth on February 10, 1950: Even though the Gregorian year is 1950, the 1949 Ji-chou Ox year ran until February 16, 1950 (the 1950 Tiger year began on February 17, 1950). Therefore, February 10, 1950, still belongs to the 1949 Earth Ox year (1949 Details).
Five-Element Variation and the 60-Year Repeat
Our verified table illustrates both how the element changes across 12-year intervals and how the 60-year cycle repeats:
- Earth Ox (Ji-chou, 1949 and 2009): The Heavenly Stem Ji maps to the Earth phase. Notice that 1949 and 2009 are separated by exactly 60 years, so both carry the identical Ji-chou stem-branch name.
- Wood Ox (Yi-chou, 1985): The Heavenly Stem Yi maps to the Wood phase.
- Fire Ox (Ding-chou, 1997): The Heavenly Stem Ding maps to the Fire phase.
(In the complete 60-year cycle, the Ox also pairs with Xin for Metal and Gui for Water in years outside this verified table subset.)
Interpretive Limits: Calendar Tradition vs. Astrology
In our reference tables, "Year of the Ox" and its associated element describe the traditional Chinese civil calendar designation for that lunisolar year:
- Not a Four Pillars (BaZi) Chart: These dates reflect civil Lunar New Year in the Hong Kong Observatory conversion tables, not the solar term Li Chun used in Four Pillars astrology, nor do they calculate month, day, or hour pillars.
- Not a Personality or Compatibility Test: While modern popular culture often assigns personality traits, lucky numbers, or romantic compatibility scores to zodiac animals, historical museum sources note that birth-year personality readings are a relatively recent development compared to the ancient calendar-naming tradition. Astrology is a symbolic interpretive framework, not a scientifically validated measure of character or future events.
Sources and Reference Methodology
All start dates, end dates, and stem-branch headers (Ji-chou, Yi-chou, Ding-chou) are sourced from the official Hong Kong Observatory Gregorian-Lunar Calendar Conversion Tables (T1949e.txt, T1950e.txt, T1985e.txt, T1986e.txt, T1997e.txt, T1998e.txt, T2009e.txt, T2010e.txt) and HKO Stems and Branches documentation. Five-element mappings for the Heavenly Stems follow Yoo & Yoon (2019, DOI: 10.14369/jkmc.2019.32.2.017 abstract, used strictly for cultural stem-element nomenclature). Historical and calendrical context is based on the Victoria and Albert Museum (updated April 17, 2024) and Royal Museums Greenwich.