First lunar month · turning animal year

Chinese New Year is a date boundary, not a fixed day

It opens the first month of the traditional lunisolar year and changes the familiar zodiac animal used for an outer-year reading. That is why a January or February birthday cannot be classified from its Gregorian year alone.

A woodblock-style folded almanac with four zodiac calendar panels
正月初一First day of the first lunar month

Verified date register

Chinese New Year dates and the years they open

Each row names the Gregorian date on which that zodiac year begins. The animal comes from the Earthly Branch; phase and polarity come from the Heavenly Stem.

  1. 甲辰
    2024 · Yang Wood DragonCycle position 41 of 60
  2. 乙巳
    2025 · Yin Wood SnakeCycle position 42 of 60
  3. 丙午
    2026 · Yang Fire HorseCycle position 43 of 60
  4. 丁未
    2027 · Yin Fire GoatCycle position 44 of 60
  5. 戊申
    2028 · Yang Earth MonkeyCycle position 45 of 60
  6. 己酉
    2029 · Yin Earth RoosterCycle position 46 of 60
  7. 庚戌
    2030 · Yang Metal DogCycle position 47 of 60
  8. 辛亥
    2031 · Yin Metal PigCycle position 48 of 60
  9. 壬子
    2032 · Yang Water RatCycle position 49 of 60
  10. 癸丑
    2033 · Yin Water OxCycle position 50 of 60
  11. 甲寅
    2034 · Yang Wood TigerCycle position 51 of 60
  12. 乙卯
    2035 · Yin Wood RabbitCycle position 52 of 60

Date coverage: 1901-2100, from the Hong Kong Observatory Gregorian-Lunar Calendar Conversion Table. See the site’s source register.

What turns—and what does not

One festival date, three different calendar questions

“The year changes” can refer to civil administration, the popular zodiac animal, or a Four Pillars coordinate. Keeping those questions separate removes most apparent conflicts.

  1. 01
    Gregorian civil year

    Turns on January 1. It labels the date but does not settle a zodiac-year boundary.

  2. 02
    Outer zodiac animal year

    Turns on Chinese New Year in this site’s popular year-animal result.

  3. 03
    Four Pillars year

    Turns at Li Chun in the chart method used here, sometimes before and sometimes after the festival.

Moon months, solar seasons

Why the Gregorian date moves

Traditional months follow lunar phases, while leap months and solar markers keep the calendar aligned with the seasonal year. The same named lunar date therefore lands on a different Gregorian day from one year to the next.

A lunar month opens

The first day is tied to the new-moon phase rather than to a fixed Gregorian date.

Leap months correct drift

An extra lunar month is inserted when needed so month names do not slide through every season.

节气

Solar terms hold the seasons

The Sun’s seasonal markers keep the lunisolar calendar anchored to the agricultural year.

The boundary in practice

One day changes the outer-year label

Compare the day before the festival with its first day. Nothing is inferred from January 1.

  1. 乙巳
    Yin Wood Snake

    Zodiac year 2025

  2. 丙午
    Yang Fire Horse

    Zodiac year 2026

  3. 丙午
    Yang Fire Horse

    Zodiac year 2026

  4. 丁未
    Yin Fire Goat

    Zodiac year 2027

A festival period, not one isolated moment

From reunion eve to the Lantern Festival

The calendrical boundary is the first day, while observance forms a longer arc. Customs vary by region and family, so the sequence below names only the broad temporal structure.

Before day 1New Year’s Eve

The old year closes with reunion and preparation.

Day 1New Year begins

The first lunar month opens and the outer zodiac-year label changes.

Day 15Lantern Festival

The first full moon closes the best-known public festival arc.

Questions around the turning year

Chinese New Year, clearly bounded

When does the Chinese zodiac animal change?

On this site’s popular outer-year reading, the animal changes on Chinese New Year. A birth before that date remains in the preceding zodiac year even after January 1.

Is Chinese New Year the same date every year?

No. It is the first day of the first month in the traditional lunisolar calendar, so its Gregorian date moves through late January and February.

Is Chinese New Year the Four Pillars year boundary?

Usually not. Four Pillars practice conventionally turns the year pillar at Li Chun, the Start of Spring solar term. The two boundaries can disagree for days or weeks.

Why can two websites give different animals for a February birthday?

They may be using different named boundaries. A reliable result should state whether it uses Chinese New Year or Li Chun instead of presenting the answer as boundary-free.