Syowa 21 is A.D. 1946. This page also summarizes the year's age, zodiac and leap year information.
Years before/after are calculated from Jan. 1 of the current year to Jan. 1 of the target year.
This table summarizes simple ways to convert between A.D. years and Japanese eras.
| A.D.→Showa | Subtract 25 from A.D.'s lower 2 digits. | Ex. 1975→75-25=50→Showa 50 |
|---|---|---|
| Showa→A.D. | Plus 25 and add "19" to its head. | Ex. Showa 50→50+25=75→A.D. 1975 |
List of period of each Japanese era.(From Meiji to now)
|
Meiji |
25/01/1868(Sat)~ 30/07/1912(Tue) |
|---|---|
|
Taisyo |
30/07/1912(Tue)~ 25/12/1926(Sat) |
|
Syowa |
25/12/1926(Sat)~ 07/01/1989(Sat) |
|
Heisei |
08/01/1989(Sun)~ 30/04/2019(Tue) |
|
Reiwa |
01/05/2019(Wed)~ |
Syowa 21 is A.D. 1946.
Use the era-specific formula, such as adding 18 for Reiwa or subtracting 12 then adding 2000 for Heisei.