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 December 2029

Lunar month 10 · day 26

廿六

Calculate Chinese age on another date →

Next occurrence

1174 days from today

1 December 2029

in the 2029 lunar year

Expected-date preview · 1 December 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 Wood Ox

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

Explore the day stem →

Lunar month

Month 10 · day 26

廿六. 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 December 2029

Saturday · Yin Wood Ox

203021 November 2030

Thursday · Yang Metal Monkey

203110 December 2031

Wednesday · Yang Wood Monkey

203228 November 2032

Sunday · Yang Earth Tiger

203317 November 2033

Thursday · Yang Water Monkey

20346 December 2034

Wednesday · Yang Fire Monkey

203525 November 2035

Sunday · Yang Metal Tiger

203613 December 2036

Saturday · Yang Wood Tiger

20372 December 2037

Wednesday · Yang Earth Monkey

203822 November 2038

Monday · Yin Water Rabbit

203911 December 2039

Sunday · Yin Fire Rabbit

204030 November 2040

Friday · Yang Water Dog

204119 November 2041

Tuesday · Yang Fire Dragon

20428 December 2042

Monday · Yang Metal Dragon

204327 November 2043

Friday · Yang Wood Dog

204414 December 2044

Wednesday · Yin Fire Rooster

20454 December 2045

Monday · Yang Water Dragon

204623 November 2046

Friday · Yang Fire Dog

204712 December 2047

Thursday · Yang Metal Dog

20481 December 2048

Tuesday · Yin Wood Snake

204921 November 2049

Sunday · Yang Metal Rat

20509 December 2050

Friday · Yin Water Pig

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 · December 2044
SundaySunMondayMonTuesdayTueWednesdayWedThursdayThuFridayFriSaturdaySat
TodaySelectedFestivalMoon phaseSolar term

Read the selected day →

Selected day · calendar reading

14 December 2044 selected. Reading updated.

14

Wednesday

Chinese lunar date

Month 10 · day 26 · 2044

二〇四四年十月廿六

Your exact lunar birthday

The lunar month, day and leap status all match the birth record.

Birth-year animal & element

Yang Wood Rat

Day pillar

Yin Fire Rooster

丁酉

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 December 2029, is lunar 2029, month 10, day 26.

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 December 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.