Age ChartBorn in 1970 (Shōwa 45)
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School years in Japan
In Japan a school year starts on 1 April; children born from 2 April to 1 April of the next year are in the same grade.
| Born 1 Jan – 1 Apr 1970 | Born 2 Apr – 31 Dec 1970 | |
|---|---|---|
| Elementary school entry (April) | 1976 (Shōwa 51) | 1977 (Shōwa 52) |
| Elementary school graduation (March) | 1982 (Shōwa 57) | 1983 (Shōwa 58) |
| Junior high school entry | 1982 (Shōwa 57) | 1983 (Shōwa 58) |
| Junior high school graduation | 1985 (Shōwa 60) | 1986 (Shōwa 61) |
| High school entry | 1985 (Shōwa 60) | 1986 (Shōwa 61) |
| High school graduation | 1988 (Shōwa 63) | 1989 (Shōwa 64 / Heisei 1) |
| University entry | 1988 (Shōwa 63) | 1989 (Shōwa 64 / Heisei 1) |
| University graduation (4 years) | 1992 (Heisei 4) | 1993 (Heisei 5) |
Adulthood in Japan
| Celebration | Year |
|---|---|
| Turns 18 (legal age of adulthood in Japan since 1 April 2022) | 1988 (Shōwa 63) |
| Turns 20 | 1990 (Heisei 2) |
Traditional longevity celebrations
Customs differ: celebrations are held either in the year of the full age or, traditionally, by the old count in which a person is 1 at birth.
| Celebration | Age | Year (full age) | Year (traditional count) |
|---|---|---|---|
| Kanreki | 60 | 2030 | 2029 |
| Koki | 70 | 2040 | 2039 |
| Kiju | 77 | 2047 | 2046 |
| Sanju | 80 | 2050 | 2049 |
| Beiju | 88 | 2058 | 2057 |
| Sotsuju | 90 | 2060 | 2059 |
| Hakuju | 99 | 2069 | 2068 |
| Hyakuju | 100 | 2070 | 2069 |
Other years of the Dog
Method
Ages are computed from today’s date in Japan time. ‘Birthday passed’ means the birthday in the current year has already come. The traditional count adds one to the current year minus the birth year. Japanese era years follow the Era Name Act and the cabinet orders changing the era; in a year when the era changed, both names are shown. School years follow the School Education Act and the Act on Age Calculation (a person reaches an age on the day before the birthday, so those born on 1 April join the earlier grade). Adulthood follows Article 4 of the Civil Code.
About this page
People born in 1970 (Shōwa 45, year of the Dog) are 56 today if their birthday has passed this year, otherwise 55.