The Chinese Zodiac

The lucky numbers page makes an argument this site stands by: most published Chinese superstition is padding, and numbers are the exception because they stopped being belief and became infrastructure — the lift panel, the price tag, the phone number.

The zodiac is the other half of that register, and the words zodiac, 生肖 (shēngxiào) and "year of the" appear nowhere else on this site. It deserves the same treatment: not what your animal says about your personality, but the one part of it that is a matter of fact and is genuinely contested.

That part is the boundary. If you were born between about 21 January and 21 February, you may well have two Chinese zodiac animals, and which one you get depends on which Chinese calendar the person answering is using.

The twelve, and the sixty#

The animals run in a fixed order, one per year, repeating every twelve:

The twelve is the half everyone abroad knows. The half that matters in Chinese usage is that the animals are the junior partner in a sixty-year cycle, not a twelve-year one.

Each year carries a two-character name from the 干支 (gān zhī) system — one of ten heavenly stems paired with one of twelve earthly branches — and each branch has an animal attached to it. Ten and twelve run together for sixty years before the pair repeats. So 2024 was 甲辰 (jiǎ chén), a dragon year, and 2025 was 乙巳 (yǐ sì), a snake year; the year running now is 丙午 (bǐng wǔ), a horse year. The animal repeats every twelve years, but the full name of the year does not come round again for sixty.

This is why Chinese sources naming a year rarely say only "dragon year". A dragon year happens five times in a sixty-year cycle and they are not interchangeable.

The boundary, which is the actual question#

Here is where the honest answer stops being simple, and the clearest statement of the problem comes from the China Meteorological Administration, which publishes on this because the boundary in question is a solar term.

Its position on the strict reckoning:

干支历严格地以立春作为一年的开始，且不是按照一天，而是按照由太阳位置决定的立春具体时刻来划分。因此，如果从干支历的角度出发，生肖的分界线就是立春无疑。

The 干支历 (gān zhī lì, the stem-branch calendar) strictly takes 立春 (lì chūn, the start of spring — the first of the twenty-four solar terms) as the beginning of the year, and it divides not by a day but by the exact moment of Lichun as determined by the position of the sun. So from the stem-branch calendar's standpoint, the zodiac boundary is unquestionably Lichun.

Read that twice. The strict boundary is not a date. It is a timestamp — the instant the sun reaches a particular ecliptic longitude, published to the minute, falling on or about 4 February.

Then the complication:

农历正月初一有时候在立春前，有时候在立春后。这样一来，生肖的分界线就变得模糊不清了。

The first day of the first lunar month sometimes falls before Lichun and sometimes after, so the boundary becomes blurred. That is not a defect in anyone's arithmetic; it follows from the rule that fixes the date of Spring Festival, which this site sets out already and will not repeat.

And the conclusion, which is unusually candid for a government science page:

靠农历的正月初一来划分两种生肖是不严格的，但由于"过年"等习俗习惯上都是按农历进行，人们也就逐渐习惯于从"大年初一"开始换个叫法。

Dividing the two animals by the first day of the first lunar month is not rigorous — but because new-year customs run on the lunar calendar, people have gradually got used to changing the name from New Year's Day.

China has a national standard for the calendar, and it is not where you would look for it#

The calendar itself is standardised, which most visitors would never guess.

GB/T 33661-2017, 《农历的编算和颁行》 — Calculation and promulgation of the Chinese calendar — was published on 12 May 2017 and took effect on 1 September 2017. The national standards catalogue records it as 现行 (xiàn xíng), current, and shows its last review on 28 December 2023 with the conclusion 继续有效 (jì xù yǒu xiào), remains valid.

Two details are worth pausing on.

The competent department is not the standards administration. Both the competent department (主管部门, zhǔguǎn bùmén) and the administering unit (归口单位, guīkǒu dānwèi) are recorded as the Chinese Academy of Sciences, and the drafting unit is the Academy's Purple Mountain Observatory in Nanjing — named in the catalogue along with its four drafters. A national standard on the calendar is administered by an academy of sciences, and written by the observatory that computes the almanac.

And it is a GB/T, not a GB — a recommended national standard rather than a compulsory one. What that distinction means, and how a Chinese standard can keep its number and change its force, the site sets out elsewhere; the short version is that the calendar is standardised the way a good practice is standardised, not the way a safety floor is.

What it fixed, in the words of one of its drafters, Purple Mountain Observatory associate researcher Cheng Zhuo, quoted by the state news agency in January 2025:

2017年，由紫金山天文台起草的国家标准《农历的编算和颁行》正式发布并实施，首次明确了农历编算的模型、精度以及编排规则、表述方法。

The standard, drafted by the observatory, was formally published and implemented in 2017 and for the first time settled the model, the precision, the arrangement rules and the methods of expression for computing the lunar calendar. Before it, different published calendars disagreed with each other about solar-term times and festival dates.

Where the boundary came from, and that it has moved before#

There is nothing eternal about a new year starting where it does. The state news agency's account of the Spring Festival date sets out the older history plainly:

殷以丑月、周以子月、秦以亥月为岁首……直到西汉颁布《太初历》才统一为夏历正月初一

The Shang took the chou month as the head of the year, the Zhou the zi month and the Qin the hai month — and it was not until the Western Han promulgated the Taichu calendar that this was unified on the first day of the first month of the Xia calendar.

A boundary that has been moved by three dynasties is not the sort of thing that has one obviously correct position now.

本命年, the year your animal comes round#

The one piece of zodiac practice you will actually see is 本命年 (běn mìng nián), the year of your own sign — which arrives at 12, 24, 36, 48, 60 and so on. It is traditionally regarded as an unlucky year rather than a lucky one, and the customary response is to wear red: a red belt, red socks, a red cord at the wrist, often given by a family member rather than bought for yourself.

Whether anyone believes it varies exactly as much as you would expect. What is not in doubt is that the retail response is real — red accessories appear in shops before Spring Festival aimed squarely at people entering their year, in the same commercial way that the number eight moves prices. China Post also issues a zodiac stamp for each incoming year and has done so since 1980, which is why zodiac stamp albums are a standard souvenir counter fixture. The series is now in its fourth round, and the 2025 snake issue was that round's tenth set.

In practice#

• Know your animal, and know the caveat. If your birthday falls between 21 January and 21 February, look up the actual Spring Festival date for your birth year before you answer, and be aware the stem-branch answer may differ again.
• The question gets asked. 你属什么？ (nǐ shǔ shénme?, "what do you belong to?") is a normal, friendly question and a much softer way of asking your age than asking it directly — which is precisely why people ask it.
• Do not read the personality material as Chinese consensus. The compatibility charts and character sketches sold to tourists are commercial, not canonical, and this site's position on Chinese taboo lists applies here too.
• A year is named by two characters, not one. If a Chinese source calls 2026 丙午, that is the horse year's full name in the sixty-cycle, not a variant spelling.
• Lichun is a solar term, not a festival. Nothing closes for it and there is no public holiday. It is a line in the almanac that happens to be a calendar boundary.
• The zodiac is not a Chinese-only system. Several neighbouring countries run their own versions with local variations, and the State Post Bureau notes each year how many other postal administrations issue stamps for the Chinese lunar animal. A neighbouring country's version is not evidence about China's.
• Hong Kong and Macau follow the same lunar calendar for Spring Festival and the zodiac, so the animal is the same; only the public holiday arrangements differ.

Frequently asked questions#

When does the Chinese zodiac year actually change?#

That depends on which calendar. Under the lunar calendar the animal changes on the first day of the first lunar month — Spring Festival — which falls between 21 January and 21 February. Under the stem-branch calendar it changes at the exact moment of Lichun, around 4 February, computed from the sun's position rather than assigned to a whole day.

What is my Chinese zodiac sign if I was born in January?#

Possibly the previous year's animal. Spring Festival can fall as late as 21 February, so a January birthday very often belongs to the preceding lunar year. Look up the Spring Festival date for your birth year rather than assuming the Gregorian year decides it.

Is the Chinese zodiac boundary Lichun or Chinese New Year?#

Both answers are used in China. The meteorological administration states that under the stem-branch calendar the boundary is unquestionably Lichun, judged by the instant rather than the day, and that dividing by the first day of the first lunar month is not rigorous — but that custom has settled on doing exactly that, because new-year practice runs on the lunar calendar.

Does China have an official standard for the lunar calendar?#

Yes. GB/T 33661-2017, Calculation and promulgation of the Chinese calendar, published on 12 May 2017 and in force since 1 September 2017. It is administered by the Chinese Academy of Sciences and was drafted by the Academy's Purple Mountain Observatory. The catalogue records it as current, last reviewed in December 2023 and confirmed as remaining valid.

Why do Chinese years have two characters as well as an animal?#

Because the animal belongs to a sixty-year cycle, not a twelve-year one. Ten heavenly stems pair with twelve earthly branches, and each branch carries an animal. 2024 was 甲辰, a dragon year; 2025 was 乙巳, a snake year; the current year is 丙午, a horse year. The animal returns every twelve years, the full name every sixty.

What is benmingnian?#

本命年, the year in which your own zodiac animal comes round again — at 12, 24, 36 and so on. It is traditionally treated as an unlucky year rather than a fortunate one, and the customary protection is to wear something red, ideally given by someone else rather than bought for yourself.