2026-09-13庚寅丙午
Almanac
Sexagenary cycle · lunar date · 24 solar terms · auspicious days, all computed
Solar date · Day pillar
A manseryeok is a Korean perpetual calendar — a table pairing the solar and lunar dates with the sexagenary cycle and the solar terms. It is the reference used both for reading a saju chart and for choosing a moving date. Rather than pulling these values from an outside service, we implemented the calculations ourselves. Everything below is computed in your browser from the current time in Korea.
Samjae signs this year: Rabbit · Sheep · Pig — Nul samjae (year 2). Check the samjae calculator
The 24 Solar Terms of 2026
The 24 solar terms mark each 15° step of the sun along the ecliptic. Because they track a real astronomical event, their solar-calendar dates barely move from year to year. The dates below are computed with the Shouxing formula and corrected against the Korea Astronomy and Space Science Institute's published values.
| Term | Date | Meaning |
|---|---|---|
| 小寒 | 01-05 | 본격적인 한겨울 추위가 시작되는 시기입니다. |
| 大寒 | 01-20 | 한 해 중 가장 추운 절기로 여겨집니다. |
| 立春 | 02-04 | 봄의 시작이자 명리학에서 한 해가 바뀌는 기준일입니다. |
| 雨水 | 02-18 | 눈이 그치고 비가 내리기 시작한다는 절기입니다. |
| 驚蟄 | 03-05 | 겨울잠 자던 벌레가 깨어난다는 절기입니다. |
| 春分 | 03-20 | 낮과 밤의 길이가 같아지는 날입니다. |
| 淸明 | 04-05 | 하늘이 맑아지고 농사를 준비하는 시기입니다. |
| 穀雨 | 04-20 | 곡식을 자라게 하는 비가 내린다는 절기입니다. |
| 立夏 | 05-05 | 여름의 시작을 알리는 절기입니다. |
| 小滿 | 05-21 | 햇볕이 풍부해지고 만물이 자라는 시기입니다. |
| 芒種 | 06-06 | 까끄라기 있는 곡식을 심는 시기입니다. |
| 夏至 | 06-21 | 한 해 중 낮이 가장 긴 날입니다. |
| 小暑 | 07-07 | 본격적인 더위가 시작되는 절기입니다. |
| 大暑 | 07-23 | 한 해 중 가장 더운 시기로 여겨집니다. |
| 立秋 | 08-07 | 가을의 시작을 알리는 절기입니다. |
| 處暑 | 08-23 | 더위가 물러가고 선선해지는 시기입니다. |
| 白露 | 09-07 | 이슬이 맺히기 시작하는 절기입니다. |
| 秋分 | 09-23 | 낮과 밤의 길이가 다시 같아지는 날입니다. |
| 寒露 | 10-08 | 찬 이슬이 맺히는 늦가을 절기입니다. |
| 霜降 | 10-23 | 서리가 내리기 시작하는 시기입니다. |
| 立冬 | 11-07 | 겨울의 시작을 알리는 절기입니다. |
| 小雪 | 11-22 | 첫눈이 내린다는 절기입니다. |
| 大雪 | 12-07 | 큰 눈이 내린다는 한겨울 절기입니다. |
| 冬至 | 12-22 | 한 해 중 밤이 가장 긴 날로, 팥죽을 먹는 풍습이 있습니다. |
Auspicious Days · 2026/9
A "no-harm day" (son eomneun nal) is a day whose lunar date ends in 9 or 0. Tradition holds that on these days the roaming spirit called son ascends to the sky and does not interfere in human affairs, which is why they are still consulted when picking moving and wedding dates. The dates below come from our own lunar conversion data.
Samjae in 2026
Samjae is a folk belief that each zodiac sign passes through a three-year period of caution once every twelve years. Signs are grouped in trines, so three signs enter it together. It is not a scientifically established concept — treat it as a prompt to start the year carefully rather than a forecast.
How these values are calculated
Where does this data come from?
Nowhere — we compute it. The sexagenary cycle, solar terms, and lunar conversion all run on code written for this site, with no external API calls. That also means nothing here breaks when a third-party service goes down.
How is the day pillar calculated?
The date is converted to a Julian Day Number — a continuous count of days — and then mapped onto the 60-position cycle. We anchor on the recorded fact that 1 October 1949 was a gapja day, so the position is (JDN + 49) mod 60. We verified the anchor against documented dates, including 1 January 2000 landing on muo.
Can a solar term date differ by a day from other sources?
Yes. Solar terms are computed with the Shouxing approximation, which drifts by a day in certain years. We check the results against the Korea Astronomy and Space Science Institute's published values and keep a correction table for the years that disagree — all 24 terms match for 2025. We do not compute the exact minute a term begins, so please use KASI's announcements when you need official figures.
Why does the year pillar change in January or February?
In Korean four-pillars astrology the year turns at Ipchun (around 4 February), not on 1 January or Lunar New Year. Dates before Ipchun therefore carry the previous year's pillar, and this page applies that rule.
How is an auspicious day determined?
It is any day whose lunar date ends in 9 or 0. Tradition holds that on these days the roaming spirit called son ascends to the sky and leaves human affairs alone. We convert the solar date using a 1900–2050 lunar table and then apply that rule. This is folk belief rather than established fact — treat it as a reference when choosing a moving or wedding date, nothing more.
Almanac values are provided for reference. For official calendrical information such as exact solar term times and public holidays, please refer to the Korea Astronomy and Space Science Institute (KASI).