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 2026

Lunar month 8 · day 21

廿一

Calculate Chinese age on another date →

Next occurrence

19 days from today

1 October 2026

in the 2026 lunar year

Expected-date preview · 1 October 2026

The calendar layers of your birth date

Yang Fire Horse · 丙午 · lunar year 2026

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

Horse

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

Year stem · phase & polarity

Yang Fire

Bǐng · . Horse itself has fixed Fire.

Day pillar

Yang Earth Monkey

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

Explore the day stem →

Lunar month

Month 8 · day 21

廿一. 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
20261 October 2026

Thursday · Yang Earth Monkey

202721 September 2027

Tuesday · Yin Water Rabbit

20289 October 2028

Monday · Yin Fire Rabbit

202928 September 2029

Friday · Yin Metal Rooster

203018 September 2030

Wednesday · Yang Fire Dragon

20317 October 2031

Tuesday · Yang Metal Dragon

203225 September 2032

Saturday · Yang Wood Dog

203314 September 2033

Wednesday · Yang Earth Dragon

20343 October 2034

Tuesday · Yang Water Dragon

203522 September 2035

Saturday · Yang Fire Dog

203610 October 2036

Friday · Yang Metal Dog

203730 September 2037

Wednesday · Yin Wood Snake

203819 September 2038

Sunday · Yin Earth Pig

20398 October 2039

Saturday · Yin Water Pig

204026 September 2040

Wednesday · Yin Fire Snake

204116 September 2041

Monday · Yang Water Rat

20424 October 2042

Saturday · Yin Wood Pig

204323 September 2043

Wednesday · Yin Earth Snake

204411 October 2044

Tuesday · Yin Water Snake

20451 October 2045

Sunday · Yang Earth Rat

204621 September 2046

Friday · Yin Water Goat

204710 October 2047

Thursday · Yin Fire Goat

204828 September 2048

Monday · Yin Metal Ox

204917 September 2049

Friday · Yin Wood Goat

20506 October 2050

Thursday · Yin Earth Goat

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 · October 2039
SundaySunMondayMonTuesdayTueWednesdayWedThursdayThuFridayFriSaturdaySat
TodaySelectedFestivalMoon phaseSolar term

Read the selected day →

Selected day · calendar reading

8 October 2039 selected. Reading updated.

8

Saturday

Chinese lunar date

Month 8 · day 21 · 2039

二〇三九年八月廿一

Your exact lunar birthday

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

Birth-year animal & element

Yin Earth Goat

Day pillar

Yin Water Pig

癸亥

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 2026, is lunar 2026, month 8, day 21.

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 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.

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.