When is the Birthday of Confucius?

The short answer

Confucius’s birthday is commonly commemorated on September 28 in Qufu and in some local or institutional observances, including a regional observance in China’s Taiwan region. That date is a modern Gregorian commemoration, not proof of the exact day Confucius was born. Confucius was a Chinese thinker and educator of ancient China, conventionally dated to around 551 BCE; the historical day remains unproven.

What is Confucius’s birth date?

The safest historical answer is approximately 551 BCE. The exact day is not established by the evidence cited here. Jeffrey L. Richey’s Oxford Bibliographies entry places Confucius, a Chinese historical figure of the sixth century BCE, around 551 BCE and distinguishes the September 28 commemoration from a proven birth record. Read more about Confucius’s life.

Search results often compress two claims into one phrase: “September 28, 551 BCE.” The year is a conventional historical dating; the day is a later commemorative convention. Treating both as equally certain gives readers a false sense of precision.

Why is September 28 associated with Confucius?

September 28 is used for public remembrance in Qufu, the city most closely associated with Confucius and the Temple of Confucius. UNESCO describes a sacrificial rite in the Confucian Temple as a celebration held every September 28. The date therefore identifies a recurring ceremony and commemorative tradition.

China’s Taiwan region offers one example of a later local institutional arrangement. The Taiwan National Archives Administration describes a 1952 change from the traditional 27th day of the eighth lunar month to September 28 on the Gregorian calendar. Local regulations there associate Confucius’s Birthday and Teachers’ Day with September 28. This is a regional modern convention; it does not represent a separate national or historical claim about Confucius’s identity. Confucius was Chinese, and the observance concerns how a particular place commemorates him.

The modern date can be important without being an ancient birth certificate. It gives temples, schools, and public bodies in particular places a stable day for remembrance.

Is Confucius’s birthday a lunar-calendar date?

There are two calendar traditions to keep separate. Hong Kong Memory identifies a traditional observance on the 27th day of the eighth lunar month. A lunar date moves against the Gregorian calendar, so it cannot accurately be described as “September 28 on the lunar calendar every year.” September 28 is a fixed Gregorian date used by particular modern observances.

“Confucius’s birthday” can refer to the historical question, the traditional lunar observance, or a modern public commemoration. A careful answer should identify which one it means.

What happens at the Qufu ceremony?

The Qufu observance is a ritual and cultural ceremony, not simply a birthday party. UNESCO describes music, song, dance, and formal ritual within the sacrificial rite. A State Council Information Office report on ceremonies held in Qufu on September 28, 2025, also described online and in-person events using music, dance, and ceremonial forms.

The details can vary by place and year. The evidence supports Qufu as a major site and September 28 as its recurring date; it does not support a claim that every country, school, or city holds the same program.

Why does the date matter today?

The observance links remembrance with teaching. Ceremonies place Confucius in a public setting where people can encounter the texts, rituals, and ethical questions associated with his tradition. For a wider introduction, see what Confucius teaches and the overview of Confucianism.

The connection with Teachers’ Day in China’s Taiwan region is a modern local institutional choice. It does not establish an exact ancient birthday or change the historical fact that Confucius was a Chinese figure.

What is the safest short answer?

If someone asks, “When is Confucius’s birthday?”, answer: September 28 is a commonly used modern commemorative date, especially in Qufu and in some local or institutional observances. Confucius, a Chinese thinker of ancient China, is conventionally dated to around 551 BCE, but the exact historical day is not proven. The traditional lunar observance is described separately as the 27th day of the eighth lunar month.

For background reading, ConfuciusPedia’s pages on the sacred texts of Confucianism and Confucian thought provide useful context.