[School year 1931] 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 1931(Showa 6).
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 1931" is from April 1, 1931 to March 31, 1932.

School year 1931(Showa 6) - 1st year Ph.D. student

School year 1931
(Showa 6)
April 2, 1931 – April 1, 1932
Grade 1st year Ph.D. student
Date of birth April 2, 1906 – April 1, 1907
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 1906 : 午(Uma 午(Uma))
Born in 1907 : 未(Hitsuji 未(Hitsuji))

Grade list

DateGrade Age
April 2, 1906 – April 1, 1907 Birth
April 2, 1907 – April 1, 1908 0 – 1
April 2, 1908 – April 1, 1909 1 – 2
April 2, 1909 – April 1, 1910 2 – 3
April 2, 1910 – April 1, 1911 1st year of kindergarten 3 – 4
April 2, 1911 – April 1, 1912 2nd year of kindergarten 4 – 5
April 2, 1912 – April 1, 1913 3rd year of kindergarten 5 – 6
April 2, 1913 – April 1, 1914 1st grade in elementary school 6 – 7
April 2, 1914 – April 1, 1915 2nd grade in elementary school 7 – 8
April 2, 1915 – April 1, 1916 3rd grade in elementary school 8 – 9
April 2, 1916 – April 1, 1917 4th grade in elementary school 9 – 10
April 2, 1917 – April 1, 1918 5th grade in elementary school 10 – 11
April 2, 1918 – April 1, 1919 6th grade in elementary school 11 – 12
April 2, 1919 – April 1, 1920 1st grade in junior high school 12 – 13
April 2, 1920 – April 1, 1921 2nd grade in junior high school 13 – 14
April 2, 1921 – April 1, 1922 3rd grade in junior high school 14 – 15
April 2, 1922 – April 1, 1923 1st grade in high school 15 – 16
April 2, 1923 – April 1, 1924 2nd grade in high school 16 – 17
April 2, 1924 – April 1, 1925 3rd grade in high school 17 – 18
April 2, 1925 – April 1, 1926 1st year university student 18 – 19
April 2, 1926 – April 1, 1927 2nd year university student 19 – 20
April 2, 1927 – April 1, 1928 3rd year university student 20 – 21
April 2, 1928 – April 1, 1929 4th year university student 21 – 22
April 2, 1929 – April 1, 1930 1st year master's student 22 – 23
April 2, 1930 – April 1, 1931 2nd year master's student 23 – 24
April 2, 1931 – April 1, 1932 1st year Ph.D. student 24 – 25
April 2, 1932 – April 1, 1933 2nd year Ph.D. student 25 – 26
April 2, 1933 – April 1, 1934 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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