Lunisolar New Year celebrations of other cultures such as Burmese, Cambodian, Lao, Sri Lankan, and Thai people are based on the Buddhist calendar and occur in mid-April.

Since at least the mid-2010s, there has been criticism in the United States regarding the use of the term "Chinese New Year" in an official capacity, particularly by Korean and Vietnamese people.

In the Classic of Poetry, a poem written during Western Zhou (1045 BC – 771 BC), by an anonymous farmer, described how people cleaned up millet stack-sites, toasted to guests with mijiu, killed lambs and cooked the meat, went to their master's home, toasted to the master, and cheered for long lives together, in the 10th month of an ancient solar calendar, which was in autumn.

In Lüshi Chunqiu, an exorcistic ritual called "Big Nuo (大儺)" was recorded being carried out in the ending day of a year to expel illness in Qin.

[citation needed] The first mentioning of the celebration of the start of a new year was recorded in Han dynasty (202 BC – 220 AD).

In the book Simin Yueling (四民月令), written by Eastern Han's agronomist and writer Cui Shi (崔寔), the celebration was recorded by stating "The starting day of the first month, is called 'Zheng Ri'.

[26] Chinese New Year is the grandest ancient traditional festival in China, commonly known as "Guo Nian".

The earliest references to Korean New Year are found in 7th-century Chinese historical works, the Book of Sui and the Old Book of Tang, containing excerpts of celebrations during the New Year in the Silla Kingdom for Korean calendar, which was influenced by the Tang dynasty's calendar system.

[27][28] Korea's own record of new year celebration is found in Samguk yusa (Memorabilia of the Three Kingdoms), compiled in the 13th century.

[30] While there is little recorded history of when Lunar New Year was first observed in Taiwan, it is known that the indigenous population had other ceremonies and did not originally celebrate the festival.

Due to Taiwan's population being mostly Han Chinese, its Lunar New Year celebration is very similar to that of mainland China, especially in regards to traditions.

They are influenced by Indian tradition, which marks the system of lunar months in a solar sidereal year.

The sun's entry into Aries is known as meṣa saṅkrānti in Sanskrit, and is observed as Mesha Sankranti and Songkran in South and South-east Asian cultures.

[37] The following Southeast Asian Lunar New Year celebration is observed according to the local lunisolar calendar and is influenced by Indian Hindu traditions.

The following Southeast Asian Lunar New Year celebration is observed according to the local lunisolar calendar and is influenced by Islamic traditions.

[39] As timing of these three important festivals fluctuates due to their reliance on the lunar calendars, they occasionally occur close to one another—every 33 years to be exact.

It is celebrated in Singapore primarily by members of the Chinese diaspora, the Peranakans as well as their descendants, who make up three-quarters of the population.

[citation needed] However, it is noteworthy that the Tết Nguyên Đán (Spring Festival) which is celebrated in late January or in the first half of February coincides with the onset of Spring in the regions of northern Vietnam and parts of southern China where the ancient Laos–Thailand kingdom of Âu Lạc and some regions of the Baiyue people are located.

Vietnamese people often celebrated their Tết holiday by painting tattoos on themselves, drinking rice liquor, eating betel nuts, and making bánh chưng, as well as pickled onions.

[47] After a decade of advocating for its inclusion by China and also other countries in Asia, the United Nations unanimously passed a resolution at its headquarters in December 2023, to recognize Lunar New Year (based on the lunisolar Chinese calendar), as a floating holiday, at the 78th session of the United Nations General Assembly.

This means that starting in 2024, UN bodies are encouraged to avoid holding meetings during that day, marking Lunar New Year as the eighth floating holiday that is observed by UN staff internationally.