Japanese AlmanacJapanese calendar for April 2026
Last updated:
| Date | Day | Old calendar | Rokuyō | Day sign | Solar terms and seasonal days |
|---|---|---|---|---|---|
| 4/1/26 | Wed | 2/14 | Senbu | 乙巳 | |
| 4/2/26 | Thu | 2/15 | Butsumetsu | 丙午 | |
| 4/3/26 | Fri | 2/16 | Taian | 丁未 | |
| 4/4/26 | Sat | 2/17 | Shakkō | 戊申 | |
| 4/5/26 | Sun | 2/18 | Senshō | 己酉 | Seimei (Clear and bright) 03:40 |
| 4/6/26 | Mon | 2/19 | Tomobiki | 庚戌 | |
| 4/7/26 | Tue | 2/20 | Senbu | 辛亥 | |
| 4/8/26 | Wed | 2/21 | Butsumetsu | 壬子 | |
| 4/9/26 | Thu | 2/22 | Taian | 癸丑 | |
| 4/10/26 | Fri | 2/23 | Shakkō | 甲寅 | |
| 4/11/26 | Sat | 2/24 | Senshō | 乙卯 | |
| 4/12/26 | Sun | 2/25 | Tomobiki | 丙辰 | |
| 4/13/26 | Mon | 2/26 | Senbu | 丁巳 | |
| 4/14/26 | Tue | 2/27 | Butsumetsu | 戊午 | |
| 4/15/26 | Wed | 2/28 | Taian | 己未 | |
| 4/16/26 | Thu | 2/29 | Shakkō | 庚申 | |
| 4/17/26 | Fri | 3/1 | Senbu | 辛酉 | Start of doyō 09:01 |
| 4/18/26 | Sat | 3/2 | Butsumetsu | 壬戌 | |
| 4/19/26 | Sun | 3/3 | Taian | 癸亥 | |
| 4/20/26 | Mon | 3/4 | Shakkō | 甲子 | Kokuu (Grain rain) 10:39 |
| 4/21/26 | Tue | 3/5 | Senshō | 乙丑 | |
| 4/22/26 | Wed | 3/6 | Tomobiki | 丙寅 | |
| 4/23/26 | Thu | 3/7 | Senbu | 丁卯 | |
| 4/24/26 | Fri | 3/8 | Butsumetsu | 戊辰 | |
| 4/25/26 | Sat | 3/9 | Taian | 己巳 | |
| 4/26/26 | Sun | 3/10 | Shakkō | 庚午 | |
| 4/27/26 | Mon | 3/11 | Senshō | 辛未 | |
| 4/28/26 | Tue | 3/12 | Tomobiki | 壬申 | |
| 4/29/26 | Wed | 3/13 | Senbu | 癸酉 | |
| 4/30/26 | Thu | 3/14 | Butsumetsu | 甲戌 |
Method
Solar terms are the moments the Sun’s apparent ecliptic longitude reaches multiples of 15°, computed with Skyfield and the JPL DE421 ephemeris and given in Japan Standard Time. Old-calendar months begin on the JST date of each new moon; the month containing the winter solstice is month 11, and in a year with 13 months the first month without a principal term is the leap month. Rokuyō follow (month + day) of the old calendar; day signs follow the 60-day cycle. Seasonal days use the conventional definitions (e.g. setsubun = the day before risshun, hachijū-hachiya = the 88th day counting risshun as day 1). Dates were cross-checked against the National Astronomical Observatory of Japan’s published calendar.
About this page
Old calendar, rokuyō and solar terms for each day of April 2026 (Japan time).
Rokuyō are a traditional calendar notation still printed on Japanese calendars. They have no scientific basis; this site lists them only as a calendar convention.