[School year 1964] Date of birth and age of 1st year Ph.D. student

Calculate date of birth and age from grade

Date of birth and age of 1st year Ph.D. student as of School year 1964(Showa 39).
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 1964" is from April 1, 1964 to March 31, 1965.

School year 1964(Showa 39) - 1st year Ph.D. student

School year 1964
(Showa 39)
April 2, 1964 – April 1, 1965
Grade 1st year Ph.D. student
Date of birth April 2, 1939 – April 1, 1940
Age 24 years old – 25 years old
If your birthday has not yet come after April 2nd : 24 years old
If your birthday is after April 2nd : 25 years old
Sexagenary cycle
Born in 1939 : 卯(U 卯(U))
Born in 1940 : 辰(Tatsu 辰(Tatsu))

Grade list

DateGrade Age
April 2, 1939 – April 1, 1940 Birth
April 2, 1940 – April 1, 1941 0 – 1
April 2, 1941 – April 1, 1942 1 – 2
April 2, 1942 – April 1, 1943 2 – 3
April 2, 1943 – April 1, 1944 1st year of kindergarten 3 – 4
April 2, 1944 – April 1, 1945 2nd year of kindergarten 4 – 5
April 2, 1945 – April 1, 1946 3rd year of kindergarten 5 – 6
April 2, 1946 – April 1, 1947 1st grade in elementary school 6 – 7
April 2, 1947 – April 1, 1948 2nd grade in elementary school 7 – 8
April 2, 1948 – April 1, 1949 3rd grade in elementary school 8 – 9
April 2, 1949 – April 1, 1950 4th grade in elementary school 9 – 10
April 2, 1950 – April 1, 1951 5th grade in elementary school 10 – 11
April 2, 1951 – April 1, 1952 6th grade in elementary school 11 – 12
April 2, 1952 – April 1, 1953 1st grade in junior high school 12 – 13
April 2, 1953 – April 1, 1954 2nd grade in junior high school 13 – 14
April 2, 1954 – April 1, 1955 3rd grade in junior high school 14 – 15
April 2, 1955 – April 1, 1956 1st grade in high school 15 – 16
April 2, 1956 – April 1, 1957 2nd grade in high school 16 – 17
April 2, 1957 – April 1, 1958 3rd grade in high school 17 – 18
April 2, 1958 – April 1, 1959 1st year university student 18 – 19
April 2, 1959 – April 1, 1960 2nd year university student 19 – 20
April 2, 1960 – April 1, 1961 3rd year university student 20 – 21
April 2, 1961 – April 1, 1962 4th year university student 21 – 22
April 2, 1962 – April 1, 1963 1st year master's student 22 – 23
April 2, 1963 – April 1, 1964 2nd year master's student 23 – 24
April 2, 1964 – April 1, 1965 1st year Ph.D. student 24 – 25
April 2, 1965 – April 1, 1966 2nd year Ph.D. student 25 – 26
April 2, 1966 – April 1, 1967 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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