Recurring lunar date

Lunar birthday calculator: dates for 2026–2050

Find your Chinese lunar birthday, then check Gregorian occurrences across 2026–2050. 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 October 2021

Lunar month 8 · day 25

廿五

6 sui 虚岁

Traditional nominal age today; 4 completed Gregorian years. It next increases at Chinese New Year on 6 February 2027.

Calculate Chinese age on another date →

Next occurrence

20 days from today

5 October 2026

in the 2026 lunar year

Birth-date reading · 1 October 2021

The calendar layers of your birth date

Yin Metal Ox · 辛丑 · lunar year 2021

Year animal

Ox

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

Year stem · phase & polarity

Yin Metal

Xīn · . Ox itself has fixed Earth.

Day pillar

Yang Water Horse

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

Explore the day stem →

Lunar month

Month 8 · day 25

廿五. Lunar months contain 29 or 30 days.

Moon phases around this date →
All 25 lunar years · date table
Gregorian date of this lunar birthday, by lunar year
Lunar yearGregorian dateDay animal & notes
20265 October 2026

Monday · Yang Water Rat

202725 September 2027

Saturday · Yin Fire Goat

202813 October 2028

Friday · Yin Metal Goat

20292 October 2029

Tuesday · Yin Wood Ox

203022 September 2030

Sunday · Yang Metal Monkey

203111 October 2031

Saturday · Yang Wood Monkey

203229 September 2032

Wednesday · Yang Earth Tiger

203318 September 2033

Sunday · Yang Water Monkey

20347 October 2034

Saturday · Yang Fire Monkey

203526 September 2035

Wednesday · Yang Metal Tiger

203614 October 2036

Tuesday · Yang Wood Tiger

20374 October 2037

Sunday · Yin Earth Rooster

203823 September 2038

Thursday · Yin Water Rabbit

203912 October 2039

Wednesday · Yin Fire Rabbit

204030 September 2040

Sunday · Yin Metal Rooster

204120 September 2041

Friday · Yang Fire Dragon

20428 October 2042

Wednesday · Yin Earth Rabbit

204327 September 2043

Sunday · Yin Water Rooster

204415 October 2044

Saturday · Yin Fire Rooster

20455 October 2045

Thursday · Yang Water Dragon

204625 September 2046

Tuesday · Yin Fire Pig

204714 October 2047

Monday · Yin Metal Pig

20482 October 2048

Friday · Yin Wood Snake

204921 September 2049

Tuesday · Yin Earth Pig

205010 October 2050

Monday · 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 · August 2047
SundaySunMondayMonTuesdayTueWednesdayWedThursdayThuFridayFriSaturdaySat
TodaySelectedFestivalMoon phaseSolar term

Read the selected day →

Selected day · calendar reading

1 August 2047 selected. Reading updated.

1

Thursday

Chinese lunar date

Month 6 · day 10 · 2047

二〇四七年六月初十

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 Fire Rabbit

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 October 2021, is lunar 2021, month 8, day 25.

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 5 October 2026. 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.

20262021 + 1 = 6 sui today.

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.