Recurring lunar date
Lunar birthday calculator: dates for 2031–2050
Find your Chinese lunar birthday, then check Gregorian occurrences across 2031–2050. The look-ahead covers up to 30 lunar years, capped at supported dates in 2050; a birthday need not occur in every year.
Your calendar identity
Next occurrence
1659 days from today
in the 2031 lunar year
Expected-date preview · 1 April 2031
The calendar layers of your birth date
Yin Metal Pig · 辛亥 · lunar year 2031
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
Pig
Hài · 亥. The lunar-year animal changes at Chinese New Year.
Year stem · phase & polarity
Yin Metal
Xīn · 辛. Pig itself has fixed Water.
Day pillar
Yin Metal Goat
辛未 · The day label follows its own sixty-day sequence.
Explore the day stem →Lunar month
Month 3 · day 10
三初十. Lunar months contain 29 or 30 days.
Moon phases around this date →All 20 lunar years · date table
| Lunar year | Gregorian date | Day animal & notes |
|---|---|---|
| 2031 | 1 April 2031 | Tuesday · Yin Metal Goat Also a leap lunar month 3 this year; the regular month is used. |
| 2032 | 19 April 2032 | Monday · Yin Wood Goat |
| 2033 | 9 April 2033 | Saturday · Yang Metal Tiger |
| 2034 | 28 April 2034 | Friday · Yang Wood Tiger |
| 2035 | 17 April 2035 | Tuesday · Yang Earth Monkey |
| 2036 | 6 April 2036 | Sunday · Yin Water Rabbit |
| 2037 | 25 April 2037 | Saturday · Yin Fire Rabbit |
| 2038 | 14 April 2038 | Wednesday · Yin Metal Rooster |
| 2039 | 3 April 2039 | Sunday · Yin Wood Rabbit |
| 2040 | 20 April 2040 | Friday · Yang Earth Tiger |
| 2041 | 10 April 2041 | Wednesday · Yin Water Rooster |
| 2042 | 29 April 2042 | Tuesday · Yin Fire Rooster |
| 2043 | 19 April 2043 | Sunday · Yang Water Dragon |
| 2044 | 7 April 2044 | Thursday · Yang Fire Dog |
| 2045 | 26 April 2045 | Wednesday · Yang Metal Dog |
| 2046 | 15 April 2046 | Sunday · Yang Wood Dragon |
| 2047 | 4 April 2047 | Thursday · Yang Earth Dog |
| 2048 | 22 April 2048 | Wednesday · Yang Water Dog |
| 2049 | 11 April 2049 | Sunday · Yang Fire Dragon |
| 2050 | 1 April 2050 | Friday · Yin Metal Pig 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.
| SundaySun | MondayMon | TuesdayTue | WednesdayWed | ThursdayThu | FridayFri | SaturdaySat |
|---|---|---|---|---|---|---|
Selected day · calendar reading
1 July 2037 selected. Reading updated.
Wednesday
Chinese lunar date
Month 5 · day 18 · 2037
二〇三七年五月十八
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 SnakeDay pillar
Yang Wood Dog甲戌
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 April 2031, is lunar 2031, month 3, day 10.
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 April 2031. 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.