South Korea has the highest policy priority for working hour regulations because it has longer annual working hours than other Organization for Economic Development Co-operation and Development countries and has fewer holidays. According to the results of the Working Conditions Surveys between 2006 and 2020, in 2020, 6% of wage earners worked for > 52 hours weekly. The percentage of workers exceeding 52 hours weekly has decreased over time; however, disparities exist based on age, industry, occupation, company type, and company size, particularly in service-, arts-, and culture-related occupations and workplaces with fewer than 5 employees. South Korea’s working hours system is greatly influenced by the 52-hour weekly maximum; sometimes, a maximum of 64–69 hours, including overtime, is theoretically possible. To ensure healthy working hours, it is important to actively protect workers who fall through the cracks, such as those in businesses with fewer than 5 employees.

Citations

Citations to this article as recorded by  

• Associations of combined work schedules and atypical working hours with mental health among South Korean police officers: a cross-sectional study
  Jungwon Jang, Joungsue Kim, Youngjin Choi, Jeehee Min, Inah Kim
  BMC Public Health.2026;[Epub]     CrossRef
• Type of Work and Subjective Health Components: A Nationwide Cross-Sectional Survey Among Workers in Korea
  Min Kyung Hyun
  Perspectives on Integrative Medicine.2026; 5(1): 36.     CrossRef
• Adverse Impact of Non-Standard Working Hours on Mental Health: An Analysis Using Two-Way Fixed Effects Model
  Nahyun Kim, Woo Chul Jeong, Hyunjoo Kim, Rangkyoung Ha, Kyunghee Jung-Choi
  Safety and Health at Work.2026;[Epub]     CrossRef
• Gender differences in the association between long working hours and the onset of depressive symptoms in middle-aged and older workers in Korea: A population-based longitudinal study (2006–2022)
  Seong-Uk Baek, Yu-Min Lee, Jong-Uk Won, Jin-Ha Yoon
  Maturitas.2025; 193: 108175.     CrossRef
• Association of precarious employment with depressive symptoms and insomnia: Findings from the Korean Working Conditions Survey
  Seong-Uk Baek, Jin-Ha Yoon
  Journal of Psychiatric Research.2025; 181: 7.     CrossRef
• Gender differences in the association between long work hours, weekend work, and insomnia symptoms in a nationally representative sample of workers in Korea
  Seong-Uk Baek, Jong-Uk Won, Jin-Ha Yoon
  Sleep Health.2025; 11(2): 191.     CrossRef
• Challenges from 14 years of experience at Workers' Health Centers in basic occupational health services for micro and small enterprises in Korea: a narrative review
  Jeong-Ok Kong, Yeongchull Choi, Seonhee Yang, Kyunghee Jung-Choi
  The Ewha Medical Journal.2025;[Epub]     CrossRef
• The increasing importance of changes in nuptiality: policy mismatch and fertility decline in low-fertility Asian societies
  Jolene Tan, Qi Cui, Fumiya Uchikoshi
  Chinese Sociological Review.2025; : 1.     CrossRef
• Association of long working hours with visceral adiposity index, anthropometric indices, and weight management behaviors: a study of Korean workers
  Seong-Uk Baek, Jin-Ha Yoon
  Family Practice.2025;[Epub]     CrossRef
• Gender discrimination in the workplace and the onset of problematic alcohol use among female wage workers: A longitudinal study in Korea
  Seong-Uk Baek, Jin-Ha Yoon, Jong-Uk Won
  Social Science & Medicine.2025; 379: 118183.     CrossRef
• Overwork and changes in brain structure: a pilot study
  Wonpil Jang, Sungmin Kim, YouJin Kim, Seunghyun Lee, Joon Yul Choi, Wanhyung Lee
  Occupational and Environmental Medicine.2025; 82(3): 105.     CrossRef
• Association of social jetlag with cigarette smoking, smoking intensity, and quitting intentions among Korean workers
  Seong-Uk Baek, Jin-Ha Yoon
  Journal of Public Health.2025; 47(3): 610.     CrossRef
• Employment Quality as a Framework to Understand Precarious Employment and Beyond in Cross‐National Contexts: Conceptual, Methodological, and Practical Recommendations
  Julie Vanderleyden, Deborah De Moortel
  Sociology Compass.2025;[Epub]     CrossRef
• Association Between Weekend Catch-Up Sleep and Obesity Among Working Adults: A Cross-Sectional Nationwide Population-Based Study
  Wonseok Jeong, Min Ji Song, Ji Hye Shin, Ji Hyun Kim
  Life.2025; 15(10): 1562.     CrossRef
• Associations of self-rated health, depression, and work ability with employee control over working time
  Heejoo Ko, Seong-Sik Cho, Jaesung Choi, Mo-Yeol Kang
  Epidemiology and Health.2025; 47: e2025036.     CrossRef
• ‘Bad jobs’ in South Korea: A wellbeing-based approach
  Sangwoo Lee, Francis Green
  The Economic and Labour Relations Review.2025; : 1.     CrossRef
• Associations of long working hours with the use of combustible cigarettes, electronic cigarettes, and heated tobacco products among young adults: a population-based study of South Korea
  Seong-Uk Baek, Jin-Ha Yoon
  Postgraduate Medical Journal.2025;[Epub]     CrossRef
• Work–life balance in remote working: does organizational support matter?
  Eun-Jee Kim, Sunyoung Park
  Employee Relations: The International Journal.2025; 47(6): 889.     CrossRef
• Work-related risk factors of sleep apnea: evidence from the Korean work, sleep, and health study
  Heejoo Ko, Seong-Sik Cho, Hye-Eun Lee, Jeehee Min, Mo-Yeol Kang
  International Archives of Occupational and Environmental Health.2025; 98(9-10): 797.     CrossRef
• The Psychology of Involution: Taxonomy, Sociocultural Predictors, and Psychological Outcomes
  Wen Zhang, Yuwei Wang, Xiaotao Liu, Chen Guo, Zhicheng Lin, Mingjie Zhou, Yan Mu
  Journal of Happiness Studies.2025;[Epub]     CrossRef
• Effect of long working hours on psychological distress among young workers in different types of occupation
  Seong-Uk Baek, Jin-Ha Yoon
  Preventive Medicine.2024; 179: 107829.     CrossRef
• Association between long working hours and diet quality and patterns: A latent profile analysis of a nationally representative sample of Korean workers
  Seong-Uk Baek, Jong-Uk Won, Yu-Min Lee, Jin-Ha Yoon
  Preventive Medicine.2024; 180: 107890.     CrossRef
• Long Working Hours, Work-life Imbalance, and Poor Mental Health: A Cross-sectional Mediation Analysis Based on the Sixth Korean Working Conditions Survey, 2020–2021
  Seong-Uk Baek, Yu-Min Lee, Jin-Ha Yoon, Jong-Uk Won
  Journal of Epidemiology.2024; 34(11): 535.     CrossRef
• Association between long working hours and the onset of problematic alcohol use in young workers: A population-based longitudinal analysis in South Korea
  Seong-Uk Baek, Jong-Uk Won, Jin-Ha Yoon
  Journal of Affective Disorders.2024; 344: 141.     CrossRef
• Sex differences in the association between social jetlag and hazardous alcohol consumption in Korean workers: A nationwide cross-sectional study
  Seong-Uk Baek, Jong-Uk Won, Yu-Min Lee, Jin-Ha Yoon
  Sleep Medicine.2024; 119: 549.     CrossRef
• Association of low-quality employment with the development of suicidal thought and suicide planning in workers: A longitudinal study in Korea
  Seong-Uk Baek, Jin-Ha Yoon, Yu-Min Lee, Jong-Uk Won
  Social Science & Medicine.2024; 358: 117219.     CrossRef
• Changes in Korea’s working time policy: the need for research on flexible working hours considering socioeconomic inequality
  Inah KIM
  Industrial Health.2024; 62(2): 77.     CrossRef
• Association between long working hours and engagement in preventive healthcare services in Korean workers: Findings from the Korean National Health and Nutrition Examination Survey
  Seong-Uk Baek, Yu-Min Lee, Jin-Ha Yoon
  Preventive Medicine.2024; 180: 107849.     CrossRef
• Association between long working hours and metabolic dysfunction–associated steatotic liver disease: a nationwide population-based study in Korea
  S.-U. Baek, J.-U. Won, Y.-M. Lee, J.-H. Yoon
  Public Health.2024; 232: 188.     CrossRef
• How does working time impact perceived mental disorders? New insights into the U-shaped relationship
  Xiaoru Niu, Chao Li, Yuxin Xia
  Frontiers in Public Health.2024;[Epub]     CrossRef
• Temporary Employment Is Associated with Poor Dietary Quality in Middle-Aged Workers in Korea: A Nationwide Study Based on the Korean Healthy Eating Index, 2013–2021
  Seong-Uk Baek, Myeong-Hun Lim, Yu-Min Lee, Jong-Uk Won, Jin-Ha Yoon
  Nutrients.2024; 16(10): 1482.     CrossRef
• Association between long working hours and the development of suicidal ideation among female workers: An 8-year population-based study using the Korean Longitudinal Survey of Women & Family (2012–2020)
  Seong-Uk Baek, Yu-Min Lee, Jin-Ha Yoon
  Psychiatry Research.2024; 333: 115731.     CrossRef
• Long working hours and preventive oral health behaviors: a nationwide study in Korea (2007–2021)
  Seong-Uk Baek, Jin-Ha Yoon, Yu-Min Lee, Jong-Uk Won
  Environmental Health and Preventive Medicine.2024; 29: 48.     CrossRef
• Association between precarious employment and emergence of food insecurity in Korean adults: A population-based longitudinal analysis (2008–2022)
  Seong-Uk Baek, Jin-Ha Yoon
  Social Science & Medicine.2024; 362: 117448.     CrossRef
• Association of Social Jetlag with the Dietary Quality Among Korean Workers: Findings from a Nationwide Survey
  Seong-Uk Baek, Jin-Ha Yoon
  Nutrients.2024; 16(23): 4091.     CrossRef
• Association between social jetlag and leisure-time physical activity and muscle strengthening exercise in young adults: findings from a nationally representative sample in South Korea
  S.-U. Baek, Y.-M. Lee, J.-U. Won, J.-H. Yoon
  Public Health.2024; 237: 30.     CrossRef
• Association between husband's participation in household work and the onset of depressive symptoms in married women: A population-based longitudinal study in South Korea
  Seong-Uk Baek, Yu-Min Lee, Jong-Uk Won, Jin-Ha Yoon
  Social Science & Medicine.2024; 362: 117416.     CrossRef
• Long Working Hours and Unhealthy Lifestyles of Workers: A Protocol for a Scoping Review
  Seong-Uk Baek, Jong-Uk Won, Jin-Ha Yoon
  Merits.2024; 4(4): 431.     CrossRef
• Work hours and the risk of hypertension: the case of Indonesia
  Friska Aulia Dewi Andini, Adiatma Y. M. Siregar
  BMC Public Health.2024;[Epub]     CrossRef
• The Prevalence of Traumatic Dental Injuries Due to Workplace Safety Accidents among Korean Workers by Occupational Group
  Ji-Young Son, Jae-Hyung Lim, Dong-Hun Han
  Asian Journal of Social Health and Behavior.2024; 7(3): 109.     CrossRef
• Special Series I: Working hours as a social determinant of workers’ health
  Kyunghee Jung-Choi, Tae-Won Jang, Mo-Yeol Kang, Jungwon Kim, Eun-A Kim
  Annals of Occupational and Environmental Medicine.2023;[Epub]     CrossRef

There are several types of shift work in Korea: rotating shift, 24-hour shift, day-night shift, fixed night work, and.so on. As a result of analyzing the 8th Korea National Health and Nutrition Examination Survey and the 6th Korean Working Condition Survey, Korean shift workers accounted for 11.6%–13.9% of wage workers. Weekly working hours of shift workers were 57.69 ± 1.73 (24-hours shift) and 49.97 ± 0.67 (fixed night shift), which were significantly longer than day workers. To prevent health consequences of night work, many countries regulate the working hours of night work not to exceed 7–9 hours a day. However, Korea does not regulate working hours for night work, and some occupations may work more hours than the prescribed overtime hours. To prevent health consequences and reduce working hours for Korean night shift workers, it is necessary to regulate the working hours of night shift workers by law.

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• Association Between Types of Shift Work and Physical Health Symptoms, Including Musculoskeletal Symptoms and Sleep Disturbance: Evidence From the Seventh Korean Working Conditions Survey
  Ji-Soo Jang, Sung-Kyung Kim, Sangwon Hwang, Hoon Jo, Hye-Seon Jeon
  Journal of Occupational & Environmental Medicine.2026; 68(1): 34.     CrossRef
• Metabolic risk stratification of night shift workers in a large retail workplace through clustering and SHAP interpretation
  InHo Lee, SangHee Hong, EunChul Jang, JuneHee Lee, JeongBeom Lee
  Frontiers in Public Health.2026;[Epub]     CrossRef
• Adverse Impact of Non-Standard Working Hours on Mental Health: An Analysis Using Two-Way Fixed Effects Model
  Nahyun Kim, Woo Chul Jeong, Hyunjoo Kim, Rangkyoung Ha, Kyunghee Jung-Choi
  Safety and Health at Work.2026;[Epub]     CrossRef
• Effect of stress on insulin resistance among shift workers based on findings from the Korea National Health and Nutrition Examination Survey (2019, 2021): a retrospective cross-sectional study
  Yea Seul Yoon, Wonhee Baek
  Journal of Korean Biological Nursing Science.2026; 28(1): 107.     CrossRef
• Gender differences in the association between long working hours and the onset of depressive symptoms in middle-aged and older workers in Korea: A population-based longitudinal study (2006–2022)
  Seong-Uk Baek, Yu-Min Lee, Jong-Uk Won, Jin-Ha Yoon
  Maturitas.2025; 193: 108175.     CrossRef
• Association of precarious employment with depressive symptoms and insomnia: Findings from the Korean Working Conditions Survey
  Seong-Uk Baek, Jin-Ha Yoon
  Journal of Psychiatric Research.2025; 181: 7.     CrossRef
• Association of long working hours with visceral adiposity index, anthropometric indices, and weight management behaviors: a study of Korean workers
  Seong-Uk Baek, Jin-Ha Yoon
  Family Practice.2025;[Epub]     CrossRef
• Night Shift Stress: Evaluating Heart Rate Variability as a Marker in Security Guards
  Shouray Dey, A V Vinay, R Sindhu, Shishir Kumar Mahto, Sachin Kumar Patil
  Indian Journal of Occupational and Environmental Medicine.2025; 29(1): 49.     CrossRef
• Gender discrimination in the workplace and the onset of problematic alcohol use among female wage workers: A longitudinal study in Korea
  Seong-Uk Baek, Jin-Ha Yoon, Jong-Uk Won
  Social Science & Medicine.2025; 379: 118183.     CrossRef
• A digital, real-time, history-based sleep-management tool to enhance alertness
  Yun Min Song, Su Jung Choi, Dongju Lim, Reinatt Hansel Wijaya, Hyeong Jun Jang, Hea Ree Park, Eun Yeon Joo, Jae Kyoung Kim
  SLEEPJ.2025;[Epub]     CrossRef
• Human Rights Condition of Informal Labors of South-Western Bangladesh: A Review
  Avijit Mallik
  Journal of Human Rights and Social Work.2025; 10(4): 774.     CrossRef
• Association between shift work and brain age gap: a neuroimaging study using MRI-based brain age prediction algorithms
  Youjin Kim, Joon Yul Choi, Evgeny Petrovskiy, Wanhyung Lee
  Frontiers in Aging Neuroscience.2025;[Epub]     CrossRef
• The association of shift work and TyG index among male workers in a chemical plant of Korea: a cross-sectional study
  Gwangin Baek, Yong-Jin Lee, Soon-Chan Kwon, Young-Sun Min, Jisuk Yun, Tae Jin Ahn, Eun-Chul Jang
  Annals of Occupational and Environmental Medicine.2024;[Epub]     CrossRef
• Association between long working hours and diet quality and patterns: A latent profile analysis of a nationally representative sample of Korean workers
  Seong-Uk Baek, Jong-Uk Won, Yu-Min Lee, Jin-Ha Yoon
  Preventive Medicine.2024; 180: 107890.     CrossRef
• Investigating night shift workers’ commuting patterns using passive mobility data
  Sungho Lim, Haesung Ahn, Seungchul Shin, Dongmin Lee, Yong Hoon Kim
  Transportation Research Part A: Policy and Practice.2024; 181: 104002.     CrossRef
• Multimorbidity and its Associated Factors in Korean Shift Workers: Population-Based Cross-Sectional Study
  Hye Chong Hong, Young Man Kim
  JMIR Public Health and Surveillance.2024; 10: e55014.     CrossRef
• Sex differences in the association between social jetlag and hazardous alcohol consumption in Korean workers: A nationwide cross-sectional study
  Seong-Uk Baek, Jong-Uk Won, Yu-Min Lee, Jin-Ha Yoon
  Sleep Medicine.2024; 119: 549.     CrossRef
• The Effect of 24 h Shift Work on the Nutritional Status of Healthcare Workers: An Observational Follow-Up Study from Türkiye
  Semra Navruz Varlı, Hande Mortaş
  Nutrients.2024; 16(13): 2088.     CrossRef
• Changes in Korea’s working time policy: the need for research on flexible working hours considering socioeconomic inequality
  Inah KIM
  Industrial Health.2024; 62(2): 77.     CrossRef
• Association between precarious employment and emergence of food insecurity in Korean adults: A population-based longitudinal analysis (2008–2022)
  Seong-Uk Baek, Jin-Ha Yoon
  Social Science & Medicine.2024; 362: 117448.     CrossRef
• Special Series I: Working hours as a social determinant of workers’ health
  Kyunghee Jung-Choi, Tae-Won Jang, Mo-Yeol Kang, Jungwon Kim, Eun-A Kim
  Annals of Occupational and Environmental Medicine.2023;[Epub]     CrossRef