Born in which year at legal age 20?

As of the as-of date, someone of legal age 20 was born in 2005 if before the birthday, or 2006 if after.

As-of date：30 August 2026

Legal age (man-nenrei)

20years

Birth year if before birthday

2005（乙酉 / 平成17年）

Birth year if after birthday

2006（丙戌 / 平成18年）

Facts on this page

・People with legal age 20 as of 30 August 2026

・If before the birthday, born in 2005

・If after the birthday, born in 2006

・Eto before the birthday is 乙酉

・Eto after the birthday is 丙戌

・Wareki year before the birthday is about 平成17年

・Wareki year after the birthday is about 平成18年