Enter a year or a full solar birth date and time to look up the Year, Month, Day, and Hour Pillars in the East Asian sexagenary cycle (Yuksipgapja / 六十甲子). This tool provides calendar lookup only — no fortune-telling or Saju interpretation.
This page provides only a simple lookup of the Korean Traditional Calendar (Yuksipgapja / 六十甲子) and does not provide fortune-telling, Saju interpretation, or divination services.
Results are for cultural reference and entertainment only, and must not be used as the basis for medical, legal, financial, employment, or marriage decisions.
For accurate lunar-solar calendar conversion and Saju composition, refer to the Korea Astronomy and Space Science Institute (astro.kasi.re.kr) or consult a specialist.
This tool does not endorse, recommend, or broker any divination or fortune-telling service.
Official reference: Korea Astronomy & Space Science Institute · National Folk Museum Encyclopedia (Yuksipgapja) · Naver Manseryeok Search
Yuksipgapja (六十甲子), also called the sexagenary cycle, is a system of 60 combinations formed by pairing the 10 Heavenly Stems (天干, Cheon-gan) with the 12 Earthly Branches (地支, Jiji) in sequence. Because the LCM of 10 and 12 is 60, the cycle repeats every 60 years. This system has been used in Korea, China, and Japan to denote years, months, days, and hours in the traditional calendar.
The 10 Heavenly Stems are Gap (甲)·Eul (乙)·Byeong (丙)·Jeong (丁)·Mu (戊)·Gi (己)·Gyeong (庚)·Sin (辛)·Im (壬)·Gye (癸). The 12 Earthly Branches are Ja (子)·Chuk (丑)·In (寅)·Myo (卯)·Jin (辰)·Sa (巳)·O (午)·Mi (未)·Sin (申)·Yu (酉)·Sul (戌)·Hae (亥). Paired in order they form Gap-Ja (甲子), Eul-Chuk (乙丑), Byeong-In (丙寅)... and so on for 60 combinations.
Yuksipgapja is the calendar system used to express years, months, days, and hours as Ganji (干支, stem-branch pairs). Saju (四柱, Four Pillars) is a system of personality and destiny analysis based on those four pillars, using Five Elements and Ten Gods interpretation. This tool provides only the calendar lookup (Ganji) — it does not include Saju interpretation.
Year Pillar calculation: (year − 4) mod 60 = sexagenary index. Index mod 10 → Heavenly Stem; index mod 12 → Earthly Branch. Example: 2026 = (2026−4) % 60 = 22 → 22%10=2 (Byeong 丙), 22%12=10 (O 午) → Byeong-O (丙午).
2026 is Byeong-O (丙午). Byeong (丙) is the 3rd Heavenly Stem (associated with Fire) and O (午) is the 7th Earthly Branch (the Horse). In the 12-animal zodiac it is the Year of the Horse.
Manseryeok is a traditional almanac recording the Ganji and solar terms (節氣) for thousands of years of dates. It is used to look up the Year, Month, Day, and Hour Pillars. For precise lookup, refer to the Korea Astronomy and Space Science Institute (astro.kasi.re.kr) or other official sources.
The Month Pillar in this tool is an approximation based on the solar month, and does not account for the exact solar term (Jeolgi) boundary. The Day Pillar uses the Julian Day Number method and is an approximation for reference. For precise results, use the official Korea Astronomy and Space Science Institute calendar service.
육십갑자는 동아시아 전통 역법의 핵심으로, 한국·중국·일본에서 수천 년 동안 시간을 표기하는 데 사용된 간지(干支) 체계입니다. 천간(天干) 10개와 지지(地支) 12개를 순서대로 조합하면 최소공배수인 60가지 조합이 만들어지며, 이를 '육십갑자'라 부릅니다. 60년을 한 주기로 같은 간지가 돌아오기 때문에 만 60세를 맞이하는 해를 '환갑(還甲)' 또는 '화갑(華甲)'이라 하여 특별히 기념하는 문화가 생겨났습니다.
사주(四柱)는 태어난 연(年)·월(月)·일(日)·시(時)를 각각 간지로 표기한 네 개의 기둥을 말합니다. 각 기둥은 천간과 지지 두 글자로 이루어져 총 여덟 글자(팔자)가 됩니다. 본 도구는 이 네 기둥의 간지를 조회하는 역법 계산 기능만 제공합니다. 조회 결과는 재미·문화 참고용이며 운세 해석이 아님을 반드시 유념하시기 바랍니다.
본 도구의 월주는 절기(節氣) 경계를 반영하지 않은 양력 월 기준 근사치이며, 일주는 율리우스 적일(JDN) 기반 참고용 수치입니다. 정밀한 만세력 조회는 한국천문연구원(astro.kasi.re.kr) 공식 서비스를 이용하시기 바랍니다. 본 도구는 교육·문화적 참고 목적으로 제작되었으며 어떤 점술·역술도 권유하지 않습니다.