[School year 1990] Date of birth and age of 2nd year university student

Calculate date of birth and age from grade

Date of birth and age of 2nd year university student as of School year 1990(Heisei 2).
You can also check the age before and after the birthday, and the Sexagenary cycle.
In addition, you can easily check Grade list such as date of birth, grade, age, etc. for each year in the table.

School year starts on April 1st and ends on March 31st of the following year.
"School year 1990" is from April 1, 1990 to March 31, 1991.

School year 1990(Heisei 2) - 2nd year university student

School year 1990
(Heisei 2)
April 2, 1990 – April 1, 1991
Grade 2nd year university student
Date of birth April 2, 1970 – April 1, 1971
Age 19 years old – 20 years old
If your birthday has not yet come after April 2nd : 19 years old
If your birthday is after April 2nd : 20 years old
Sexagenary cycle
Born in 1970 : 戌(Inu 戌(Inu))
Born in 1971 : 亥(I 亥(I))

Grade list

DateGrade Age
April 2, 1970 – April 1, 1971 Birth
April 2, 1971 – April 1, 1972 0 – 1
April 2, 1972 – April 1, 1973 1 – 2
April 2, 1973 – April 1, 1974 2 – 3
April 2, 1974 – April 1, 1975 1st year of kindergarten 3 – 4
April 2, 1975 – April 1, 1976 2nd year of kindergarten 4 – 5
April 2, 1976 – April 1, 1977 3rd year of kindergarten 5 – 6
April 2, 1977 – April 1, 1978 1st grade in elementary school 6 – 7
April 2, 1978 – April 1, 1979 2nd grade in elementary school 7 – 8
April 2, 1979 – April 1, 1980 3rd grade in elementary school 8 – 9
April 2, 1980 – April 1, 1981 4th grade in elementary school 9 – 10
April 2, 1981 – April 1, 1982 5th grade in elementary school 10 – 11
April 2, 1982 – April 1, 1983 6th grade in elementary school 11 – 12
April 2, 1983 – April 1, 1984 1st grade in junior high school 12 – 13
April 2, 1984 – April 1, 1985 2nd grade in junior high school 13 – 14
April 2, 1985 – April 1, 1986 3rd grade in junior high school 14 – 15
April 2, 1986 – April 1, 1987 1st grade in high school 15 – 16
April 2, 1987 – April 1, 1988 2nd grade in high school 16 – 17
April 2, 1988 – April 1, 1989 3rd grade in high school 17 – 18
April 2, 1989 – April 1, 1990 1st year university student 18 – 19
April 2, 1990 – April 1, 1991 2nd year university student 19 – 20
April 2, 1991 – April 1, 1992 3rd year university student 20 – 21
April 2, 1992 – April 1, 1993 4th year university student 21 – 22
April 2, 1993 – April 1, 1994 1st year master's student 22 – 23
April 2, 1994 – April 1, 1995 2nd year master's student 23 – 24
April 2, 1995 – April 1, 1996 1st year Ph.D. student 24 – 25
April 2, 1996 – April 1, 1997 2nd year Ph.D. student 25 – 26
April 2, 1997 – April 1, 1998 3rd year Ph.D. student 26 – 27

*Primary school(6 years) / Junior high school(3 years) / High school(3 years) / Four-year university(4 years) / Master's course(2 years) / Doctoral course(3 years)

*Age does not take into account repeat grades or ronin.

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