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 January 2030

Lunar month 11 · day 28

廿八

Calculate Chinese age on another date →

Next occurrence

1205 days from today

1 January 2030

in the 2029 lunar year

Expected-date preview · 1 January 2030

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

Yang Fire Monkey

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

Explore the day stem →

Lunar month

Month 11 · day 28

廿八. 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 January 2030

Tuesday · Yang Fire Monkey

203022 December 2030

Sunday · Yin Metal Rabbit

203110 January 2032

Saturday · Yin Wood Rabbit

203230 December 2032

Thursday · Yang Metal Dog

203319 December 2033

Monday · Yang Wood Dragon

Also a leap lunar month 11 this year; the regular month is used.
20347 January 2035

Sunday · Yang Earth Dragon

203527 December 2035

Thursday · Yang Water Dog

203613 January 2037

Tuesday · Yin Wood Rooster

20373 January 2038

Sunday · Yang Metal Dragon

203823 December 2038

Thursday · Yang Wood Dog

203912 January 2040

Thursday · Yin Earth Pig

204031 December 2040

Monday · Yin Water Snake

204121 December 2041

Saturday · Yang Earth Rat

20428 January 2043

Thursday · Yin Metal Pig

204328 December 2043

Monday · Yin Wood Snake

204415 January 2045

Sunday · Yin Earth Snake

20454 January 2046

Thursday · Yin Water Pig

204625 December 2046

Tuesday · Yang Earth Horse

204713 January 2048

Monday · Yang Water Horse

20481 January 2049

Friday · Yang Fire Rat

204922 December 2049

Wednesday · Yin Metal Goat

2050Valid lunar date — its Gregorian date is outside the published range

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 · May 2031
SundaySunMondayMonTuesdayTueWednesdayWedThursdayThuFridayFriSaturdaySat
TodaySelectedFestivalMoon phaseSolar term

Read the selected day →

Selected day · calendar reading

1 May 2031 selected. Reading updated.

1

Thursday

Chinese lunar date

Leap month 3 · day 10 · 2031

二〇三一年闰三月初十

Not your lunar birthday

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

Birth-year animal & element

Yin Metal Pig

Day pillar

Yin Metal Ox

辛丑

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 January 2030, is lunar 2029, month 11, day 28.

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 January 2030. 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.