2013 — Year of the Snake 蛇 癸巳

2013 is the year of the Snake 蛇 — year pillar 癸巳, Yin Water. Every date on this page is computed by the same astronomical kernel that powers our public API, to the minute.

Lichun 2013-02-04 00:13:30 · CNY 2013-02-10 · engine 0.1.0

The two-calendar window in 2013

In 2013, Lichun 立春 falls first (2013-02-04) and Chinese New Year 6 days later (2013-02-10). Anyone born inside that 6-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 (2013-02-04 00:13:30, 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 2013

Born inside 2013 (after Lichun)? Your Ming Gua: male (2000 − 2013) mod 9 = 5 → Kun 坤 · female (2013 − 2000 + 6) mod 9 = 1 → Kan 坎（five yellow substituted per convention）. Born before Lichun? The formula runs on 2012 — the Kua calculator applies the boundary for your exact birthday.

FAQ

When does the year of the Snake (癸巳) start and end?

By the exact Lichun instant: from 2013-02-04 00:13:30 Beijing to the Lichun of 2014. By the lunar calendar: from Chinese New Year (2013-02-10) to the next new-year new moon. The two definitions disagree about 6 days of 2013 — see the window note above.

Is 2013 a leap month year?

No — the lunar year 2013 has 12 months and no leap month.

What is my Kua number if I was born in 2013?

For births after Lichun: male 5 (坤), female 1 (坎). Births before the exact Lichun instant belong to 2012 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 2013 · Almanac for Chinese New Year (2013-02-10) · Kua number calculator · Four-pillar chart · All Snake years