Lunar New Year: How 2 Billion People Celebrate

Somewhere between January 21st and February 20th each year, the world's largest annual human migration begins. Hundreds of millions of people travel home in China; Korean highways become parking lots as families return to ancestral homes; Vietnamese cities empty while rural areas fill with reunion feasts. Lunar New Year — or more precisely, the first day of the first month of the East Asian lunisolar calendar — is celebrated by an estimated two billion people across Asia and its diaspora communities worldwide.

Lunar Solar

Why the Date Changes Every Year

The date of Lunar New Year shifts because the lunisolar calendar's months are defined by the moon's phases, not fixed to a solar date. The first day of the first lunar month is always a new moon. That new moon can fall anywhere within a roughly 30-day window in late January or early February, depending on where the lunar cycle happens to be relative to the Gregorian calendar in any given year.

To find next year's Lunar New Year date, you can calculate when the second new moon after the winter solstice occurs (the first new moon after the solstice governs the solar term sequence, so the second one opens the first month). Our Lunar Solar tool can convert any lunar date — the 1st day of the 1st month — to its Gregorian equivalent for any year.

China: Chūnjié (春節), the Spring Festival

In China, Lunar New Year is officially called the Spring Festival (Chūnjié). It is the anchor of a seven-day national holiday, but the celebrations stretch for a full fifteen days, culminating in the Lantern Festival on the 15th of the first lunar month (the full moon).

Key traditions include: Reunion dinner on New Year's Eve, traditionally the most important meal of the year; red envelopes (红包, hóngbāo) containing cash given to children and unmarried adults; fireworks and firecrackers to ward off the mythical monster Nian; and lion and dragon dances performed through city streets and shopping districts. The color red dominates — red decorations, red clothing, and red envelopes — because red symbolizes good luck and is said to frighten away evil spirits.

Korea: Seollal (설날)

Korea's Lunar New Year, Seollal, is one of the country's two most important national holidays (the other being Chuseok). The holiday centers on charye (차례), a formal ancestral memorial ritual performed on New Year's morning. Family members in traditional hanbok bow before a table laid with food offerings for the deceased.

After charye comes sebae (세배): younger family members perform a deep formal bow to elders and receive sebaedon (세뱃돈) — New Year's money — in return. Traditional games include yutnori (윷놀이), a board game played with four wooden sticks, and neolttwigi (널뛰기), a see-saw game played by women.

Seollal foods vary by region but typically include tteokguk (떡국), a soup of sliced rice cakes in beef broth. Eating tteokguk is said to make you one year older — a tradition that connects the food directly to Korea's traditional age-counting system, in which everyone gains a year on Lunar New Year's Day.

Vietnam: Tết Nguyên Đán

Vietnam's version of the festival, universally known as Tết, is the country's most important holiday. Tết preparations begin weeks in advance with thorough house cleaning (to sweep out bad luck), the purchase of peach blossom branches (miền Bắc, northern tradition) or apricot blossoms (miền Nam, southern), and elaborate food preparation.

The centerpiece food of Tết is bánh chưng (northern) or bánh tét (southern) — sticky rice cakes stuffed with mung bean paste and pork fat, wrapped in banana leaves and boiled for many hours. The square shape of bánh chưng represents the earth in Vietnamese cosmology; the cylindrical bánh tét represents the sky.

Like Korea, Vietnam has a tradition of lucky money (lì xì) given in red envelopes. Visiting the home of a trusted and successful person on New Year's morning — being the "first footer" who brings the year's luck — is a serious responsibility. Some families carefully select who will first enter their home to ensure a fortunate year.

Mongolia: Tsagaan Sar (Цагаан Сар)

Mongolia celebrates the lunar new year as Tsagaan Sar (White Month), typically in late January or February. The timing follows the same lunisolar calendar as China and Korea, though the specific date sometimes differs by one day due to longitudinal differences in new moon calculation.

Tsagaan Sar preparations involve making buuz (steamed dumplings), tens of thousands per household, which are stored frozen outdoors and reheated throughout the holiday. The greeting ritual involves younger people presenting khadak (ceremonial scarves) to elders while supporting the elder's arms from below — a gesture of respect. Families visit neighbors and relatives in an extended circuit of social calls across the three-day official holiday.

Why "Lunar New Year," Not "Chinese New Year"

The linguistic shift from "Chinese New Year" to "Lunar New Year" in international media reflects a recognition that the holiday is not exclusively Chinese. Korean, Vietnamese, Mongolian, Tibetan, and diaspora communities from many other cultures celebrate the same astronomical event under different names, with distinct customs. The holiday's shared astronomical foundation is the lunisolar calendar — a pan-East Asian system, not a Chinese invention used by others.

The Global Diaspora Dimension

From San Francisco's Chinatown and Koreatown to London's Soho and Sydney's Haymarket, Lunar New Year festivities have become significant civic events in cities around the world. The United States Congress formally recognized the holiday in 2022. The United Nations has observed it since 2023. What began as a calendar-bound agricultural festival has become one of the world's most globally celebrated cultural events.