Age, zodiac and leap year

80 years before, NOT Leap year, Japanese Zodiac is Dog

Years before/after are calculated from Jan. 1 of the current year to Jan. 1 of the target year.

Conversion methods between A.D. and Japanese eras

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

Each period of Modern Japanese eras.

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)～

FAQ

What A.D. year is Syowa 21?

Syowa 21 is A.D. 1946.

How do I convert Japanese eras to A.D. years?

Use the era-specific formula, such as adding 18 for Reiwa or subtracting 12 then adding 2000 for Heisei.