Korean New Year, also known as Seollal, is one of the most significant traditional holidays in Korea. This holiday is a time for Koreans to pay respects to their ancestors and spend time with family. The celebration typically lasts for three days: the day before Korean New Year, Korean New Year itself, and the day after Korean New Year.

Seollal is celebrated on the second new moon after winter solstice, which usually falls on the first day of the lunar calendar. This typically falls between January 21 and February 20 on the Gregorian calendar.

Seollal is a time for families to come together to honor their ancestors and celebrate the coming year. It is a time for renewal, with people cleaning their homes and donning traditional Korean clothing, known as hanbok. Many Koreans also visit their hometowns to spend time with extended family during this holiday.

To wish someone a happy Korean New Year, you can say "새해 복 많이 받으세요" (saehae bok mani badeuseyo), which translates to "Receive a lot of luck in the New Year".

Seollal is also associated with various customs and activities. One of the most common is the ancestral ritual called charye. Families prepare a feast with specific foods like tteokguk, a rice cake soup that is said to grant a year of age. Another tradition is Sebae, where younger members of the family bow to their elders as a sign of respect and receive blessings and gifts in return. Games such as Yut Nori, a traditional board game, are also played.