TL;DR: Thất Tịch (七夕, also called Tết Ngâu, the day of Ông Ngâu and Bà Ngâu) is the evening of the 7th day of the 7th lunar month, tied to the legend of Ngưu Lang and Chức Nữ, separated by the Milky Way and reunited once a year. In 2026 that day falls on Wednesday, 19 August. The 6th-century Kinh Sở tuế thời ký already records women threading seven-eyed needles and setting out melons to pray for skill that night, while eating red bean chè to pray for love is a habit of young Vietnamese people today, not found in old books.
What is the Thất Tịch festival?
Thất Tịch is the evening of the 7th day of the 7th lunar month each year. The Chinese character "thất" (七) means seven and "tịch" (夕) means evening, so the name states the timing directly: the evening of the 7th day[1]. In Vietnam it is also called Tết Ngâu, the day of Ông Ngâu and Bà Ngâu, and it is sometimes called East Asian Valentine's Day[1][2].
In 2026, the 7th day of the 7th lunar month falls on Wednesday, 19 August of the solar calendar[1].
In China the festival is also called Khất Xảo (乞巧, qiqiao), a prayer for skill[2]. On the night of the 7th day of the 7th lunar month, women of former times prayed for deft hands and set out handicrafts in the hope of finding a good husband[2]. Japan calls the festival Tanabata, when people write wishes on coloured paper strips called tanzaku and hang them on bamboo branches[2]. Korea calls it Chilseok, with the custom of bathing and eating noodles and baked cakes, because it is believed that after the festival the cold wind will spoil the flavour of wheat[2].
Why eat red bean chè on Thất Tịch?
Eating red bean chè (a sweet bean soup) on Thất Tịch is not an ancient custom recorded in books but a habit of young Vietnamese people noted by the press: on this occasion many young people go out together to eat red bean chè as a way of "praying for love"[1]. In that belief, red beans stand for good luck, fidelity and the happiness of a couple, while red is the colour of love and reunion[1]. Single people eat it hoping to meet their other half, those in love to grow closer, and married couples to pray for harmony[1].
Shops in Hanoi and Ho Chi Minh City are often crowded in the Thất Tịch season thanks to the dish of "red beans to escape singledom", and besides red bean chè they also serve red bean sticky rice and red bean yoghurt[1].
This is a belief, not a verified result.
How is the legend of Ngưu Lang and Chức Nữ told?
The legend tells that Ngưu Lang was a gentle buffalo-herding boy, noticed by the weaving fairy Chức Nữ, youngest daughter of the Queen Mother (Vương Mẫu Nương Nương), who wove five-coloured clouds in the sky. The two became husband and wife, lived happily and had two children, a boy and a girl[2].
One day Chức Nữ had to return to the heavenly court by order of the Jade Emperor. Ngưu Lang chased after her but was stopped by the Heavenly River (Thiên Hà), the boundary between the mortal and immortal realms. He waited patiently and did not leave. By the river there has since been a star called the star of Ngưu Lang. Moved by his devotion, the Queen Mother agreed to let the two meet once a year on Thất Tịch[2].
The legend has several variants, but on the whole it praises faithful love and the longing of lovers[2]. It is a folk legend, not a historical event.
What does the Kinh Sở tuế thời ký record about the customs of the 7th day?
Kinh Sở tuế thời ký (荊楚歲時記, Jingchu Suishi Ji) by Tông Lẫm (Zong Lin), compiled around the 6th century, has its own entry on the night of the 7th day of the 7th month: it is the night the Herd Boy and the Weaver Girl meet; that evening women tie coloured threads, thread seven-eyed needles, some made of gold, silver or brass, and set out wine, dried meat, melons and fruit in the courtyard to pray for skill; if a small spider spins a web over the melons, it is taken as a sign of response[3]. It is one of the earliest and clearest records of the qiqiao custom. The book records the customs of the Jing-Chu region, not Vietnam, and does not mention red beans.
Why is Thất Tịch associated with love and marriage?
Thất Tịch is tied to love because the legend of Ngưu Lang and Chức Nữ tells of lovers separated and reunited only once a year. From that, people chose this day to pray for luck and happiness in love[2].
On Thất Tịch, single people often go to pray for luck in love, married couples pray for a peaceful family, and couples go to the pagoda to perform rites hoping for a lasting, faithful love[1][2]. Many people believe that taking part in the festival brings luck in love and family happiness[2]. These are beliefs, not certain promises.
How does Thất Tịch differ from country to country?
| Place | Name | Main customs |
|---|---|---|
| Vietnam | Thất Tịch, Tết Ngâu, the day of Ông Ngâu and Bà Ngâu | Eating red bean chè to pray for love; going to the pagoda to perform rites |
| China | Thất Tịch, Khất Xảo (qiqiao) | Women pray for deft hands and set out handicrafts hoping to find a good husband |
| Japan | Tanabata | Writing wishes on tanzaku paper and hanging them on bamboo branches; praying at a shrine |
| Korea | Chilseok | Bathing to pray for health; eating noodles and baked cakes made from wheat |
The table is compiled from two VietNamNet articles[1][2]. The Chinese prayer for skill in the second row is the very qiqiao custom that the Kinh Sở tuế thời ký recorded around the 6th century[3]; the red bean chè custom in the first row does not appear in that book.
