Someone born in January 1981 — Monkey or Rooster?

Monkey. The Rooster year did not begin until Lichun (立春), 4 Feb 1981, 05:55 (Beijing time, UTC+8), so every birthday from 1 January up to that instant still belongs to the Metal Monkey year 庚申. Chinese New Year 1981 fell on 5 February 1981, which is a different boundary again; classical chart work uses Lichun. Convert your birth moment to Beijing time before comparing it, because the Chinese calendar is defined on that meridian.

Why is 1981 called a Metal Rooster twice over?

Because both halves of the pillar carry the same element. The stem 辛 is Yin Metal, and the branch 酉 — the Rooster itself — is fixed as Metal in the branch tables. 1981 is one of the years where the two agree, which is why tables that read the stem and tables that read the branch both print Metal Rooster. Its na yin, a third and older system, reads 石榴木 (Wood).

How old is someone born in 1981 in 2027?

45–46 by the ordinary count at Lichun 2027, and 47 by the nominal count (虚岁) that starts at one and rises at each Chinese New Year. The two answers differ because the ordinary count waits for the birthday and the nominal one does not. 1981 is one of 8 Rooster years between 1924 and 2027; in 2027 all of them stand in the same relationship to the Tai Sui — None — but each is a different age.

1981 Chinese Zodiac: Year of the Metal Rooster (辛酉)

辛酉 Xin You · Yin Metal over the Rooster's Metal branch · number 58 of 60

1981 was a 辛酉 (Xin You) year — the 58th of the sixty stem-and-branch combinations, and in everyday English a Metal Rooster year. The element in that name comes from the heavenly stem 辛 (Yin Metal); the branch 酉, the Rooster itself, carries Metal whatever the stem above it says. Its na yin, the older sixty-part scheme, reads 石榴木 — a Wood na yin.

The 1981 zodiac year did not start on 1 January. It started at Lichun (立春), 4 Feb 1981, 05:55 (Beijing time, UTC+8), and ran until the instant before Lichun 1982, 4 Feb 1982, 11:45 (Beijing time, UTC+8). Chinese New Year 1981 fell on 5 February 1981, a separate boundary that festivals use; between the two dates the popular and the classical conventions disagree. Anyone born in January or early February 1981 should check the table below before claiming a sign.

1981 is one of 8 Rooster years between 1924 and 2027, and the only Metal Rooster year in that span, because stem and branch only line up again after sixty years: the same 辛酉 pillar last stood in 1921 and returns in 2041.

Which sign a 1981 birthday belongs to

Two rows, one boundary: the zodiac year turns at Lichun, not at midnight on 1 January and not at Chinese New Year.
Born between (Beijing time)	Stem and branch	Sign	Why
1 January 1981, 00:00 → 4 February 1981, 05:55	庚申	Metal Monkey	Still the Monkey year that opened in 1980.
4 February 1981, 05:55 → 31 December 1981, 23:59	辛酉	Metal Rooster	The Rooster year proper; it runs on past 31 December until Lichun 1982.

Born on 1 January 1981? That is a Monkey, not a Rooster: the Metal Monkey year 庚申 ran on until 4 February 1981 at 05:55 Beijing time.

Lichun is an astronomical instant, not a date: in 1981 it fell at 05:55 Beijing time (UTC+8). The instant itself starts the Rooster year, so a birth at 05:55 on that day is already a Rooster. Convert your own birth moment to Beijing time first — a birth in the Americas on the previous evening can already be past Lichun in Beijing. Check an exact birth date and time.

The 辛酉 pillar

Every row is computed: the stem and branch from the Lichun boundary, the na yin from the sixty-cycle table, both dates from the Chinese calendar itself.
	1981
Stem and branch	辛酉 (Xin You)
Place in the sixty-year cycle	58 of 60
Heavenly stem	辛 — Yin Metal 金
Earthly branch	酉 — the Rooster 鸡, fixed element Metal 金
Na yin (纳音)	石榴木 — a Wood na yin
Lichun (start of the zodiac year)	4 Feb 1981, 05:55 (Beijing time, UTC+8)
Chinese New Year	5 February 1981
Same pillar last seen / next seen	1921 / 2041

Ten stems and twelve branches only return to the same pairing after sixty years, so 辛酉 belongs to 1921, 1981 and 2041 and to no year in between. That is why a sixtieth birthday is traditionally marked: it is the year the whole pillar comes back.

The Metal Rooster

Metal Rooster (Xin You) doubles the branch's own stem and is the most unmixed version of the sign in the entire cycle. Descriptions emphasise discrimination raised to an art — quality, taste, an unerring eye for what is second-rate — and an insistence on doing things properly that others find exhausting. The classical caution concerns loneliness at that standard.

Five stems above one branch: the animal returns every twelve years, the exact pillar only every sixty, so the five variants are not evenly spread across any span shorter than that.
Variant	Stem and branch	Rooster years 1924–2027
Wood Rooster	乙酉	1945, 2005
Fire Rooster	丁酉	1957, 2017
Earth Rooster	己酉	1969
Metal Rooster	辛酉	1981
Water Rooster	癸酉	1933, 1993

Every Rooster year from 1924 to 2027

Born in 1981: the 2027 Goat year

The Tai Sui relationship and the lucky element belong to the sign, not to the birth year, so every Goat year on this site reads the same here; the ages do not.
	Rooster born 1981
Age at Lichun 2027	45–46
Nominal age 虚岁	47
Relationship with the 2027 Tai Sui	None
Traditional reading	Steady — no direct relationship with the Tai Sui
Ben Ming Nian 本命年	No — 2027 is a Goat year
Lucky element for the year	Water · black, blue · 1, 6 · North

At Lichun 2027 someone born in 1981 is 45 if their birthday has not yet come round and 46 if it has. The nominal age (虚岁), counted as one at birth and raised at each Chinese New Year, is 47 once New Year 2027 has passed.

The full reading — the month-by-month table, the five-element relationship with the year stem and the traditional remedies — is on Rooster in 2027. For the part of the sign that does not move with the year, see the Rooster profile.

Frequently asked questions

Someone born in January 1981 — Monkey or Rooster?: Monkey. The Rooster year did not begin until Lichun (立春), 4 Feb 1981, 05:55 (Beijing time, UTC+8), so every birthday from 1 January up to that instant still belongs to the Metal Monkey year 庚申. Chinese New Year 1981 fell on 5 February 1981, which is a different boundary again; classical chart work uses Lichun. Convert your birth moment to Beijing time before comparing it, because the Chinese calendar is defined on that meridian.
Why is 1981 called a Metal Rooster twice over?: Because both halves of the pillar carry the same element. The stem 辛 is Yin Metal, and the branch 酉 — the Rooster itself — is fixed as Metal in the branch tables. 1981 is one of the years where the two agree, which is why tables that read the stem and tables that read the branch both print Metal Rooster. Its na yin, a third and older system, reads 石榴木 (Wood).
How old is someone born in 1981 in 2027?: 45–46 by the ordinary count at Lichun 2027, and 47 by the nominal count (虚岁) that starts at one and rises at each Chinese New Year. The two answers differ because the ordinary count waits for the birthday and the nominal one does not. 1981 is one of 8 Rooster years between 1924 and 2027; in 2027 all of them stand in the same relationship to the Tai Sui — None — but each is a different age.