New Year's Day marks the start of the Gregorian calendar year in South Korea. While it is a public holiday, celebrations are usually calm and reflective rather than festive. Many people spend the day resting, visiting family, or preparing for the year ahead. Businesses may reopen quickly after the holiday, but the day still offers a quiet pause before normal routines resume.

Seollal, the Lunar New Year, is one of the most important and meaningful holidays in South Korea. Families travel across the country to gather at their ancestral homes, where they perform charye, traditional rites honoring ancestors. Wearing hanbok and sharing symbolic dishes like tteokguk are central customs, and eating tteokguk traditionally signifies becoming one year older. The date follows the lunar calendar, so it can shift slightly each year after official confirmation.

Substitute Holiday (daeche-gong-yu-il) is designated when certain public holidays fall on a weekend or overlap with another holiday. The next working day becomes an official day off, helping ensure a continuous break for workers and families.

Independence Movement Day commemorates the March 1st Movement of 1919, when Koreans peacefully protested against Japanese colonial rule. The day honors courage, sacrifice, and the struggle for independence. National flags are displayed throughout the country, and official ceremonies, educational programs, and memorial events reflect on Korea's path to sovereignty.

Children's Day is dedicated to celebrating children's happiness, rights, and importance in society. Families often spend the day visiting parks, zoos, museums, and amusement parks, many of which offer special events or free entry for children. The holiday highlights South Korea's strong focus on education, family life, and child well being.

Memorial Day honors soldiers and civilians who lost their lives in service to South Korea. At 10 a.m., a nationwide moment of silence is observed, accompanied by sirens across the country. Official ceremonies are held at national cemeteries, and flags are flown at half-mast. The day is solemn and reflective, emphasizing remembrance and national respect.

Constitution Day (July 17) commemorates the promulgation of the Constitution of the Republic of Korea in 1948. It honors the nation's democratic foundations and civic values, often marked by educational events and official observances.

Liberation Day marks Korea's independence from Japanese rule in 1945. The holiday celebrates freedom, resilience, and national identity. Public ceremonies, cultural performances, and patriotic displays take place nationwide, with the national flag prominently displayed on homes and public buildings.

Chuseok is South Korea's major harvest festival and one of the busiest travel periods of the year. Families return to their hometowns to honor ancestors, visit graves, and share traditional foods such as songpyeon. The three day holiday focuses on gratitude, family bonds, and agricultural traditions rooted in Korea's history. Its date follows the lunar calendar and may shift slightly after official confirmation.

National Foundation Day commemorates the legendary founding of Gojoseon, Korea's first kingdom, in 2333 BCE. The holiday celebrates Korea's ancient origins and cultural continuity. Ceremonies and educational events highlight national myths, history, and identity.

Hangul Day celebrates the creation of the Korean alphabet by King Sejong the Great in the 15th century. Hangul is praised worldwide for its scientific design and accessibility. The holiday honors literacy, education, and cultural pride, with exhibitions, language events, and public celebrations.

Christmas Day is a public holiday in South Korea and is widely observed beyond religious communities. Churches hold services, while city centers feature festive lights, decorations, and seasonal markets. The day blends religious traditions with modern celebrations and is popular among families and couples.