Recurring lunar date

Lunar birthday calculator: dates for 2029–2050

Find your Chinese lunar birthday, then check Gregorian occurrences across 2029–2050. The look-ahead covers up to 30 lunar years, capped at supported dates in 2050; a birthday need not occur in every year.

Gregorian dates from 1901-01-01 to 2050-12-31.

Your calendar identity

1 May 2029

Lunar month 3 · day 18

十八

Calculate Chinese age on another date →

Next occurrence

960 days from today

1 May 2029

in the 2029 lunar year

Expected-date preview · 1 May 2029

The calendar layers of your birth date

Yin Earth Rooster · 己酉 · lunar year 2029

This is the sign for the selected date. Recheck using the actual birth date, especially if it falls on the other side of Chinese New Year.

Year animal

Rooster

Yǒu · . The lunar-year animal changes at Chinese New Year.

Year stem · phase & polarity

Yin Earth

· . Rooster itself has fixed Metal.

Day pillar

Yin Metal Rabbit

辛卯 · The day label follows its own sixty-day sequence.

Explore the day stem →

Lunar month

Month 3 · day 18

十八. Lunar months contain 29 or 30 days.

Moon phases around this date →
All 22 lunar years · date table
Gregorian date of this lunar birthday, by lunar year
Lunar yearGregorian dateDay animal & notes
20291 May 2029

Tuesday · Yin Metal Rabbit

203020 April 2030

Saturday · Yin Wood Rooster

20319 April 2031

Wednesday · Yin Earth Rabbit

Also a leap lunar month 3 this year; the regular month is used.
203227 April 2032

Tuesday · Yin Water Rabbit

203317 April 2033

Sunday · Yang Earth Dog

20346 May 2034

Saturday · Yang Water Dog

203525 April 2035

Wednesday · Yang Fire Dragon

203614 April 2036

Monday · Yin Metal Pig

20373 May 2037

Sunday · Yin Wood Pig

203822 April 2038

Thursday · Yin Earth Snake

203911 April 2039

Monday · Yin Water Pig

204028 April 2040

Saturday · Yang Fire Dog

204118 April 2041

Thursday · Yin Metal Snake

20427 May 2042

Wednesday · Yin Wood Snake

204327 April 2043

Monday · Yang Metal Rat

204415 April 2044

Friday · Yang Wood Horse

20454 May 2045

Thursday · Yang Earth Horse

204623 April 2046

Monday · Yang Water Rat

204712 April 2047

Friday · Yang Fire Horse

204830 April 2048

Thursday · Yang Metal Horse

204919 April 2049

Monday · Yang Wood Rat

20509 April 2050

Saturday · Yin Earth Goat

Also a leap lunar month 3 this year; the regular month is used.

Choose a day · read it here

Your lunar birthday in the calendar

The exact lunar birthday is marked in its surrounding month. Browse other years or select a nearby day; no substitute date is chosen for an absent birthday.

Swipe across the calendar to see every day. Select a date for its reading.

Your lunar birthday in the calendar · April 2042
SundaySunMondayMonTuesdayTueWednesdayWedThursdayThuFridayFriSaturdaySat
TodaySelectedFestivalMoon phaseSolar term

Read the selected day →

Selected day · calendar reading

1 April 2042 selected. Reading updated.

1

Tuesday

Chinese lunar date

Leap month 2 · day 11 · 2042

二〇四二年闰二月十一

Not your lunar birthday

This is a nearby calendar date. Your birthday marker appears only where all three parts match.

Birth-year animal & element

Yang Water Dog

Day pillar

Yin Earth Snake

己巳

Open the full date →Explore this day in my personal calendar →

From a birth record to an annual date

What is a lunar birthday?

A lunar birthday repeats the month and day recorded in the Chinese calendar, rather than the month and day printed on a Gregorian birth certificate. Both describe the original birth; they produce different anniversary dates in later years.

First, convert the birth date

The finder locates the original day in its lunar year, numbered month and regular or leap occurrence. That full identity is what the yearly search preserves.

Your date, 1 May 2029, is lunar 2029, month 3, day 18.

Then, find its next occurrence

For each later lunar year, the finder selects the same month, leap status and day, then converts it back to Gregorian. “Next occurrence” is the first matching date on or after today.

Your next date is 1 May 2029. See the surrounding month →

Keep the original record

If your family record already gives a lunar birthday, check whether it includes 闰, the leap-month marker. Leaving that marker out can select a different month and produce a different Gregorian date.

Convert a recorded lunar birthday →

Two ways of counting age

A birthday and an age increment are not the same

Completed Gregorian years

This age counts completed years since the Gregorian birthday. A person begins at zero and gains a year on that anniversary.

Nominal age · 虚岁

In the convention shown here, a person is one sui at birth and gains a year at Chinese New Year. The calculation is current lunar year minus birth lunar year, plus one—not simply Gregorian age plus one in every case.

A child born shortly before Chinese New Year can become two sui within days. This reflects the counting convention, not two completed years of life.

Reading the exceptions

Why a row may have no birthday date

A short lunar month

A month of 29 days has no day 30. The finder reports that absence; it does not quietly replace a thirtieth-day birthday with day 29.

An absent leap month

A leap-month birthday repeats exactly only when the same numbered leap month occurs again. A regular month of the same number remains a different occurrence.

The publication boundary

A lunar date can exist while its Gregorian equivalent falls beyond the published calendar. That is labelled outside the available range, not described as a missing birthday.

Lunisolar movement

Why the date moves

The lunar day stays the same; its Gregorian position changes with the rhythm of lunar months and leap months.

The Chinese calendar is lunisolar: months follow the moon and run 29 or 30 days, while a leap month is inserted about every third year to keep the year aligned with the seasons. A lunar date therefore drifts against the Gregorian calendar, usually falling eleven days earlier than the previous year before a leap month pushes it forward again.

Two consequences matter for a birthday. A date on the 30th of a month does not exist in years where that month is short. And a birthday inside a leap month recurs only when the same leap month recurs, which is irregular — sometimes decades apart.

The table marks both cases explicitly. The same conversion is available for any date in the date converter.

Family practice

When a lunar date is absent

A 30th day can disappear in a short month, and a leap-month birthday can be absent for many years. Families handle those cases differently; the table keeps the exact calendar pattern visible so you can follow the custom that matters to you.