1981 — Year of the Rooster 雞 辛酉

1981 is the year of the Rooster 雞 — year pillar 辛酉, Yin Metal. Every date on this page is computed by the same astronomical kernel that powers our public API, to the minute.

Lichun 1981-02-04 05:55:27 · CNY 1981-02-05 · engine 0.1.0

The two-calendar window in 1981

In 1981, Lichun 立春 falls first (1981-02-04) and Chinese New Year 1 day later (1981-02-05). Anyone born inside that 1-day window gets a different zodiac animal and year pillar depending on which convention their tool follows — BaZi practice switches at the exact Lichun instant (1981-02-04 05:55:27, Beijing), folk calendar practice at the new moon. This is not an edge case we gloss over — it is the single most common source of wrong zodiac years, and our engine comparison tool shows it live with three engines side by side.

Your Kua number for 1981

Born inside 1981 (after Lichun)? Your Ming Gua: male (2000 − 1981) mod 9 = 1 → Kan 坎 · female (1981 − 2000 + 6) mod 9 = 5 → Gen 艮. Born before Lichun? The formula runs on 1980 — the Kua calculator applies the boundary for your exact birthday.

FAQ

When does the year of the Rooster (辛酉) start and end?

By the exact Lichun instant: from 1981-02-04 05:55:27 Beijing to the Lichun of 1982. By the lunar calendar: from Chinese New Year (1981-02-05) to the next new-year new moon. The two definitions disagree about 1 day of 1981 — see the window note above.

Is 1981 a leap month year?

No — the lunar year 1981 has 12 months and no leap month.

What is my Kua number if I was born in 1981?

For births after Lichun: male 1 (坎), female 5 (艮). Births before the exact Lichun instant belong to 1980 and use that year in the formula — most online calculators get early-February birthdays wrong here.

Tools for this year

All 24 solar terms of 1981 · Almanac for Chinese New Year (1981-02-05) · Kua number calculator · Four-pillar chart · All Rooster years