2091 — Year of the Pig 豬 辛亥

2091 is the year of the Pig 豬 — year pillar 辛亥, Yin Metal. Every date on this page is computed by the same astronomical kernel that powers our public API, to the minute.

Lichun 2091-02-03 22:30:35 · CNY 2091-02-18 · engine 0.1.0

The two-calendar window in 2091

In 2091, Lichun 立春 falls first (2091-02-03) and Chinese New Year 15 days later (2091-02-18). Anyone born inside that 15-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 (2091-02-03 22:30:35, 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 2091

Born inside 2091 (after Lichun)? Your Ming Gua: male (2000 − 2091) mod 9 = 8 → Gen 艮 · female (2091 − 2000 + 6) mod 9 = 7 → Dui 兑. Born before Lichun? The formula runs on 2090 — the Kua calculator applies the boundary for your exact birthday.

FAQ

When does the year of the Pig (辛亥) start and end?

By the exact Lichun instant: from 2091-02-03 22:30:35 Beijing to the Lichun of 2092. By the lunar calendar: from Chinese New Year (2091-02-18) to the next new-year new moon. The two definitions disagree about 15 days of 2091 — see the window note above.

Is 2091 a leap month year?

No — the lunar year 2091 has 12 months and no leap month.

What is my Kua number if I was born in 2091?

For births after Lichun: male 8 (艮), female 7 (兑). Births before the exact Lichun instant belong to 2090 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 2091 · Almanac for Chinese New Year (2091-02-18) · Kua number calculator · Four-pillar chart · All Pig years