Ichiryū-manbai-bi (一粒万倍日), “one grain, ten thousand fold”: All Dates in 2027
Just as one grain of rice grows into ten thousand, what you start on this day is said to grow big. It is considered good for opening a business, registering a marriage, buying lottery tickets or starting to save. Things you don't want to multiply, like borrowing money, are avoided.
Next: Jan 9, 2027 (Sat)
Every Ichiryū-manbai-bi in 2027
| Date and day eto | Rokuyō | Other notes |
|---|---|---|
| Jan 9 (Sat) 戊子 | Senshō | – |
| Jan 12 (Tue) 辛卯 | Butsumetsu | – |
| Jan 21 (Thu) 庚子 | Senshō | Fujōju-bi, Doyō |
| Jan 24 (Sun) 癸卯 | Butsumetsu | Doyō, Doyō rest day |
| Feb 2 (Tue) 壬子 | Senshō | Doyō |
| Feb 8 (Mon) 戊午 | Tomobiki | – |
| Feb 15 (Mon) 乙丑 | Senbu | – |
| Feb 20 (Sat) 庚午 | Tomobiki | – |
| Feb 27 (Sat) 丁丑 | Senbu | – |
| Mar 4 (Thu) 壬午 | Tomobiki | – |
| Mar 7 (Sun) 乙酉 | Taian | – |
| Mar 12 (Fri) 庚寅 | Shakkō | Tiger day, Sanrinbō |
| Mar 19 (Fri) 丁酉 | Senshō | – |
| Mar 24 (Wed) 壬寅 | Shakkō | Tiger day, Sanrinbō |
| Mar 31 (Wed) 己酉 | Senshō | – |
| Apr 6 (Tue) 乙卯 | Senshō | – |
| Apr 15 (Thu) 甲子 | Taian | Kinoe-ne day, Fujōju-bi |
| Apr 18 (Sun) 丁卯 | Tomobiki | Doyō |
| Apr 27 (Tue) 丙子 | Taian | Doyō |
| Apr 30 (Fri) 己卯 | Tomobiki | Doyō |
| May 12 (Wed) 辛卯 | Butsumetsu | – |
| May 13 (Thu) 壬辰 | Taian | – |
| May 24 (Mon) 癸卯 | Butsumetsu | – |
| May 25 (Tue) 甲辰 | Taian | Fujōju-bi |
| Jun 5 (Sat) 乙卯 | Taian | – |
| Jun 7 (Mon) 丁巳 | Senshō | Snake day |
| Jun 8 (Tue) 戊午 | Tomobiki | – |
| Jun 19 (Sat) 己巳 | Senshō | Tsuchinoto-mi day |
| Jun 20 (Sun) 庚午 | Tomobiki | – |
| Jul 1 (Thu) 辛巳 | Senshō | Snake day |
| Jul 2 (Fri) 壬午 | Tomobiki | – |
| Jul 14 (Wed) 甲午 | Butsumetsu | Tenshabi, Sanrinbō, Jushi-bi |
| Jul 17 (Sat) 丁酉 | Senshō | Fujōju-bi |
| Jul 26 (Mon) 丙午 | Butsumetsu | Sanrinbō, Jushi-bi, Doyō |
| Jul 29 (Thu) 己酉 | Senshō | Doyō |
| Aug 7 (Sat) 戊午 | Shakkō | Sanrinbō, Jushi-bi, Doyō |
| Aug 8 (Sun) 己未 | Senshō | – |
| Aug 13 (Fri) 甲子 | Shakkō | Kinoe-ne day |
| Aug 20 (Fri) 辛未 | Senshō | Fujōju-bi |
| Aug 25 (Wed) 丙子 | Shakkō | – |
| Sep 1 (Wed) 癸未 | Tomobiki | – |
| Sep 6 (Mon) 戊子 | Senshō | – |
| Sep 9 (Thu) 辛卯 | Butsumetsu | – |
| Sep 14 (Tue) 丙申 | Senbu | – |
| Sep 21 (Tue) 癸卯 | Butsumetsu | – |
| Sep 26 (Sun) 戊申 | Senbu | Tenshabi, Fujōju-bi |
| Oct 3 (Sun) 乙卯 | Shakkō | – |
| Oct 9 (Sat) 辛酉 | Shakkō | – |
| Oct 18 (Mon) 庚午 | Senbu | Sanrinbō |
| Oct 21 (Thu) 癸酉 | Shakkō | Doyō begins, Doyō rest day |
| Oct 30 (Sat) 壬午 | Taian | Sanrinbō, Doyō |
| Nov 2 (Tue) 乙酉 | Tomobiki | First Tori-no-ichi, Doyō, Doyō rest day |
| Nov 14 (Sun) 丁酉 | Tomobiki | Second Tori-no-ichi |
| Nov 15 (Mon) 戊戌 | Senbu | Dog day |
| Nov 26 (Fri) 己酉 | Tomobiki | Third Tori-no-ichi |
| Nov 27 (Sat) 庚戌 | Senbu | Dog day |
| Dec 10 (Fri) 癸亥 | Taian | Fujōju-bi |
| Dec 11 (Sat) 甲子 | Shakkō | Kinoe-ne day, Tenshabi |
| Dec 22 (Wed) 乙亥 | Taian | – |
| Dec 23 (Thu) 丙子 | Shakkō | – |
Days that overlap with other lucky days
Mar 12 (Tiger day + Ichiryū-manbai-bi) – also Sanrinbō, so not for building (some regions avoid moving too), Mar 24 (Tiger day + Ichiryū-manbai-bi) – also Sanrinbō, so not for building (some regions avoid moving too), Jun 19 (Tsuchinoto-mi day + Ichiryū-manbai-bi), Aug 13 (Kinoe-ne day + Ichiryū-manbai-bi), Dec 11 (Kinoe-ne day + Tenshabi + Ichiryū-manbai-bi)
Days that fall on Fujōju-bi or Jushi-bi are left out. When Tenshabi and Fujōju-bi coincide, some schools say Tenshabi cancels the bad luck and others give Fujōju-bi priority.
How to use Ichiryū-manbai-bi
A good day for buying or starting to use a new wallet, buying lottery tickets, opening a bank account or taking up a new hobby.
The meaning of these days is explained in Lucky days and festivals of the eto, and the calculation in How the calendar is calculated. Almanac notes can differ between traditions.