May 31, 2026 falls on Sunday, i.e. April 15th of the lunar calendar, belonging to At Ty day, Quy Ty month, Binh Ngo year.
According to the book "Lịch âm - dương Cát Tường 2026" (Hong Duc Publishing House), this day belongs directly to Kim Duong. In folk beliefs, this is considered a lucky day, suitable for departure or starting important tasks. Many people believe that Kim Duong day is meaningful for fortune, work and relationships.
According to weather, May 31st is in the Tiểu mãn period, lasting from May 21st to June 5th. This is the time when early season showers often appear in the North, causing water levels on rivers and streams to increase but not reach high levels like the main rainy season.
Notably, May 31 this year coincides with Vesak, one of the major Buddhist holidays. This event commemorates the birth of Buddha Shakyamuni.
Previously, countries following the Northern Buddhist tradition such as Vietnam, China, Korea or Japan often celebrated Buddha's Birthday on April 8th of the lunar calendar.
Meanwhile, Buddhist countries choose the full moon of April. Since 1950, at the first World Buddhist Congress held in Sri Lanka, Buddhist delegations have agreed to take the full moon of the 4th lunar month as the International Buddha's Birthday.
Prayer text for the full moon of April (Book "Vietnamese Traditional Prayers" - Culture and Information Publishing House):
I respectfully bow to the Emperor, the Landlord, and all venerable gods.
I respectfully bow to Lord Ban Canh Thanh Hoang, Lord Ban Xu Tho Dia, Lord Ban Gia Tao Quan and all venerable gods.
I respectfully bow to the Cao Tang Patriarch, the Cao Tang Ancestor Sisters, Uncles, Brothers, Aunts, and Sisters of the paternal and maternal families.
Our believers are... residing in...
Today is April 15th of the lunar calendar, we believers sincerely prepare offerings, incense, flowers, tea, and fruits, and light incense sticks to offer before the altar.
We respectfully invite Mr. Ban Canh Thanh Hoang Chu Vi Dai Vuong, Mr. Ban Xu Than Linh Tho Dia, Mr. Ban Gia Tao Quan, Ngu Phuong, Long Mac, Tai Than. Please descend before the court to witness your sincerity and enjoy the offerings.
We respectfully invite the patriarchs, patriarchs, ancestral spirits of both paternal and maternal families..., bow in gratitude to pity the sacred descendants appearing, witness sincerity, and enjoy offerings.
Believers, I respectfully invite the predecessors and successors to reside in this house, this land, to live in peace and prosperity. Please bless us with a prosperous life, a peaceful destiny, four seasons without obstacles, and eight periods of glory and prosperity.
We offer a sincere and humble offering, before the altar, respectfully offering, and bow to ask for blessings and protection.
Phục duy cẩn cáo!