Institutions operating on a five-day workweek will have a total of 119 holidays in 2027, according to a calendar reference document released by the Korea AeroSpace Administration. Labor Day, Constitution Day, Hangeul Day and Christmas will fall on Saturdays next year.
The Korea AeroSpace Administration announced the monthly calendar guidelines for 2027 (year 4360 in the Dangun calendar), which serve as the standard for producing South Korea's calendars. The guidelines, published annually by the agency under the Astronomy Act, provide accurate dates, solar terms based on astronomical calendar systems, and public holidays set by relevant laws for citizens to use in daily life and various activities.
The number of government office holidays marked in red on the 2027 calendar totals 76, including 52 Sundays and 24 days comprising national holidays, substitute holidays, and Labor Day and Constitution Day, which were designated as government office holidays this year. Labor Day and Constitution Day were designated as holidays starting this April. However, because Seollal (Feb. 7), Memorial Day (June 6), Liberation Day (Aug. 15) and Gaecheonjeol (Oct. 3) overlap with Sundays, the actual total number of holidays is 72.
Institutions operating on a five-day workweek will have 124 days off, combining the 72 government office holidays with 52 Saturdays. But excluding five holidays that overlap with Saturdays — the first day of the Seollal holiday (Feb. 6), Labor Day (May 1), Constitution Day (July 17), Hangeul Day (Oct. 9) and Christmas (Dec. 25) — the actual total number of days off is 119.
※ For 2026, the monthly calendar guidelines listed 122 days, including 70 government office holidays and 52 Saturdays, with 118 total days off after excluding four holidays that overlapped with Saturdays. However, with the addition of Labor Day and Constitution Day, the actual number of 2026 holidays is 120.
In addition, based on five-day workweek institutions, there will be 10 holiday periods of three days or more in 2027: Jan. 1-3, Feb. 6-9 (Seollal holiday), Feb. 27-March 1 (Independence Movement Day), May 1-3 (Labor Day and substitute holiday), July 17-19 (Constitution Day), Aug. 14-16 (Liberation Day), Sept. 14-16 (Chuseok holiday), Oct. 2-4 (Gaecheonjeol and substitute holiday), Oct. 9-11 (Hangeul Day and substitute holiday) and Dec. 25-27 (Christmas and substitute holiday).
Among major traditional holidays, Seollal (lunar Jan. 1) falls on Feb. 7 (Sunday), Jeongwol Daeboreum (lunar Jan. 15) on Feb. 21 (Sunday), Dano (lunar May 5) on June 9 (Wednesday), Chilseok (lunar July 7) on Aug. 8 (Sunday), and Chuseok (lunar Aug. 15) on Sept. 15 (Wednesday). Hansik falls on April 6 (Tuesday), Chobok on July 20 (Tuesday), Jungbok on July 30 (Friday) and Malbok on Aug. 9 (Monday).
