The cycle was used in China since the second millennium BC (it has been found on Shang dynasty oracle bones), as a means of naming days (just as we use the days in the week). This use of the cycle for days is attested throughout the Zhou dynasty. For instance, most entries in the Spring and Autumn Annals use this system.
Its use for recording years is more recent. It became widespread in the Western Han Dynasty (202 BC- 8 AD), and might have begun in the late Warring States period. According to Nihon shoki, the calendar was transmitted to Japan in 553. But it was not until the Suiko era around 602 that the calendar was used for politics.
The year 604, when the Japanese officially adopted the Chinese calendar, was the first year of the cycle. The year 1984 began the present cycle, and 2044 will begin another.
*The names of several animals can be translated into English in several different ways. The Vietnamese Earthly Branches use Cat instead of Rabbit/Hare.
In a traditional story of the twelve animals, the cat and rat were once good friends, but the animals to be selected to represent the years included the rat but not the cat. These animals had to present themselves to be given the honour of representing the years in the cycle, and the cat asked the rat to wake him up before they had to go. The rat didn't do this, but instead went himself. When they came to cross a river, the rat jumped on the ox's back, and just before the ox got to the bank, the rat jumped off and was first in line. This is why the twelve animals are lead by the rat, and because the cat was cheated out of its rightful place, rats are forever sought out by cats for revenge.
The sexagenary cycle was first used for days in the Shang Dynasty, and later also used for years and less commonly for months.
For example, the year 2000 was 17th year of the 78th sexagenary cycle, a gēng-chén year (庚辰年), a year of the Yang Metal Dragon. Therefore, 2006 is 23rd year of the 78th sexagenary cycle, called a bǐng-xū year (丙戌年), a year of the Yang Fire Dog; 2007 a year of the Yin Fire Pig.
The naming of the months and days is not common now, although they are shown on Chinese calendars and almanacs.
Below is the sexagenary cycle matched up to the Western calendar for the years 1804 - 2043, or four full 60 year cycles.
| 1804 - 1863 | Heavenly stem | Earthly branch | 1864 - 1923
|
| Year | (Elements) | (Animals) | Year
|
1 | ~~ 1804 - ~~ 1805 | 甲 Yang Wood | 子 Rat | ~~ 1864 - ~~ 1865
|
2 | ~~ 1805 - ~~ 1806 | 乙 Yin Wood | 丑 Ox | ~~ 1865 - ~~ 1866
|
3 | ~~ 1806 - ~~ 1807 | 丙 Yang Fire | 寅 Tiger | ~~ 1866 - ~~ 1867
|
4 | ~~ 1807 - ~~ 1808 | 丁 Yin Fire | 卯 Rabbit | ~~ 1867 - ~~ 1868
|
5 | ~~ 1808 - ~~ 1809 | 戊 Yang Earth | 辰 Dragon | ~~ 1868 - ~~ 1869
|
6 | ~~ 1809 - ~~ 1810 | 己 Yin Earth | 巳 Snake | ~~ 1869 - ~~ 1870
|
7 | ~~ 1810 - ~~ 1811 | 庚 Yang Metal | 午 Horse | ~~ 1870 - ~~ 1871
|
8 | ~~ 1811 - ~~ 1812 | 辛 Yin Metal | 未 Sheep | ~~ 1871 - ~~ 1872
|
9 | ~~ 1812 - ~~ 1813 | 壬 Yang Water | 申 Monkey | ~~ 1872 - ~~ 1873
|
10 | ~~ 1813 - ~~ 1814 | 癸 Yin Water | 酉 Rooster | ~~ 1873 - ~~ 1874
|
11 | ~~ 1814 - ~~ 1815 | 甲 Yang Wood | 戌 Dog | ~~ 1874 - ~~ 1875
|
12 | ~~ 1815 - ~~ 1816 | 乙 Yin Wood | 亥 Pig | ~~ 1875 - ~~ 1876
|
13 | ~~ 1816 - ~~ 1817 | 丙 Yang Fire | 子 Rat | ~~ 1876 - ~~ 1877
|
14 | ~~ 1817 - ~~ 1818 | 丁 Yin Fire | 丑 Ox | ~~ 1877 - ~~ 1878
|
15 | ~~ 1818 - ~~ 1819 | 戊 Yang Earth | 寅 Tiger | ~~ 1878 - ~~ 1879
|
16 | ~~ 1819 - ~~ 1820 | 己 Yin Earth | 卯 Rabbit | ~~ 1879 - ~~ 1880
|
17 | ~~ 1820 - ~~ 1821 | 庚 Yang Metal | 辰 Dragon | ~~ 1880 - ~~ 1881
|
18 | ~~ 1821 - ~~ 1822 | 辛 Yin Metal | 巳 Snake | ~~ 1881 - ~~ 1882
|
19 | ~~ 1822 - ~~ 1823 | 壬 Yang Water | 午 Horse | ~~ 1882 - ~~ 1883
|
20 | ~~ 1823 - ~~ 1824 | 癸 Yin Water | 未 Sheep | ~~ 1883 - ~~ 1884
|
21 | ~~ 1824 - ~~ 1825 | 甲 Yang Wood | 申 Monkey | ~~ 1884 - ~~ 1885
|
22 | ~~ 1825 - ~~ 1826 | 乙 Yin Wood | 酉 Rooster | ~~ 1885 - ~~ 1886
|
23 | ~~ 1826 - ~~ 1827 | 丙 Yang Fire | 戌 Dog | ~~ 1886 - ~~ 1887
|
24 | ~~ 1827 - ~~ 1828 | 丁 Yin Fire | 亥 Pig | ~~ 1887 - ~~ 1888
|
25 | ~~ 1828 - ~~ 1829 | 戊 Yang Earth | 子 Rat | ~~ 1888 - ~~ 1889
|
26 | ~~ 1829 - ~~ 1830 | 己 Yin Earth | 丑 Ox | ~~ 1889 - ~~ 1890
|
27 | ~~ 1830 - ~~ 1831 | 庚 Yang Metal | 寅 Tiger | ~~ 1890 - ~~ 1891
|
28 | ~~ 1831 - ~~ 1832 | 辛 Yin Metal | 卯 Rabbit | ~~ 1891 - ~~ 1892
|
29 | ~~ 1832 - ~~ 1833 | 壬 Yang Water | 辰 Dragon | ~~ 1892 - ~~ 1893
|
30 | ~~ 1833 - ~~ 1834 | 癸 Yin Water | 巳 Snake | ~~ 1893 - ~~ 1894
|
31 | ~~ 1834 - ~~ 1835 | 甲 Yang Wood | 午 Horse | ~~ 1894 - ~~ 1895
|
32 | ~~ 1835 - ~~ 1836 | 乙 Yin Wood | 未 Sheep | ~~ 1895 - ~~ 1896
|
33 | ~~ 1836 - ~~ 1837 | 丙 Yang Fire | 申 Monkey | ~~ 1896 - ~~ 1897
|
34 | ~~ 1837 - ~~ 1838 | 丁 Yin Fire | 酉 Rooster | ~~ 1897 - ~~ 1898
|
35 | ~~ 1838 - ~~ 1839 | 戊 Yang Earth | 戌 Dog | ~~ 1898 - ~~ 1899
|
36 | ~~ 1839 - ~~ 1840 | 己 Yin Earth | 亥 Pig | ~~ 1899 - Jan 30 1900
|
37 | ~~ 1840 - ~~ 1841 | 庚 Yang Metal | 子 Rat | Jan 31 1900 - Feb 18 1901
|
38 | ~~ 1841 - ~~ 1842 | 辛 Yin Metal | 丑 Ox | Feb 19 1901 - Feb 07 1902
|
39 | ~~ 1842 - ~~ 1843 | 壬 Yang Water | 寅 Tiger | Feb 08 1902 - Jan 28 1903
|
40 | ~~ 1843 - ~~ 1844 | 癸 Yin Water | 卯 Rabbit | Jan 29 1903 - Feb 15 1904
|
41 | ~~ 1844 - ~~ 1845 | 甲 Yang Wood | 辰 Dragon | Feb 16 1904 - Feb 03 1905
|
42 | ~~ 1845 - ~~ 1846 | 乙 Yin Wood | 巳 Snake | Feb 04 1905 - Jan 24 1906
|
43 | ~~ 1846 - ~~ 1847 | 丙 Yang Fire | 午 Horse | Jan 25 1906 - Feb 12 1907
|
44 | ~~ 1847 - ~~ 1848 | 丁 Yin Fire | 未 Sheep | Feb 13 1907 - Feb 01 1908
|
45 | ~~ 1848 - ~~ 1849 | 戊 Yang Earth | 申 Monkey | Feb 02 1908 - Jan 21 1909
|
46 | ~~ 1849 - ~~ 1850 | 己 Yin Earth | 酉 Rooster | Jan 22 1909 - Feb 09 1910
|
47 | ~~ 1850 - ~~ 1851 | 庚 Yang Metal | 戌 Dog | Feb 10 1910 - Jan 29 1911
|
48 | ~~ 1851 - ~~ 1852 | 辛 Yin Metal | 亥 Pig | Jan 30 1911 - Feb 17 1912
|
49 | ~~ 1852 - ~~ 1853 | 壬 Yang Water | 子 Rat | Feb 18 1912 - Feb 05 1913
|
50 | ~~ 1853 - ~~ 1854 | 癸 Yin Water | 丑 Ox | Feb 06 1913 - Jan 25 1914
|
51 | ~~ 1854 - ~~ 1855 | 甲 Yang Wood | 寅 Tiger | Jan 26 1914 - Feb 13 1915
|
52 | ~~ 1855 - ~~ 1856 | 乙 Yin Wood | 卯 Rabbit | Feb 14 1915 - Feb 02 1916
|
53 | ~~ 1856 - ~~ 1857 | 丙 Yang Fire | 辰 Dragon | Feb 03 1916 - Jan 22 1917
|
54 | ~~ 1857 - ~~ 1858 | 丁 Yin Fire | 巳 Snake | Jan 23 1917 - Feb 10 1918
|
55 | ~~ 1858 - ~~ 1859 | 戊 Yang Earth | 午 Horse | Feb 11 1918 - Jan 31 1919
|
56 | ~~ 1859 - ~~ 1860 | 己 Yin Earth | 未 Sheep | Feb 01 1919 - Feb 18 1920
|
57 | ~~ 1860 - ~~ 1861 | 庚 Yang Metal | 申 Monkey | Feb 19 1920 - Feb 07 1921
|
58 | ~~ 1861 - ~~ 1862 | 辛 Yin Metal | 酉 Rooster | Feb 08 1921 - Jan 27 1922
|
59 | ~~ 1862 - ~~ 1863 | 壬 Yang Water | 戌 Dog | Jan 28 1922 - Feb 15 1923
|
60 | ~~ 1863 - ~~ 1864 | 癸 Yin Water | 亥 Pig | Feb 16 1923 - Feb 04 1924
|
| 1924 - 1983 | Heavenly stem | Earthly branch | 1984 - 2043
|
| Year | (Elements) | (Animals) | Year
|
1 | Feb 05 1924 - Jan 23 1925 | 甲 Yang Wood | 子 Rat | Feb 02 1984 - Feb 19 1985
|
2 | Jan 24 1925 - Feb 11 1926 | 乙 Yin Wood | 丑 Ox | Feb 20 1985 - Feb 08 1986
|
3 | Feb 12 1926 - Feb 01 1927 | 丙 Yang Fire | 寅 Tiger | Feb 09 1986 - Jan 28 1987
|
4 | Feb 02 1927 - Jan 21 1928 | 丁 Yin Fire | 卯 Rabbit | Jan 29 1987 - Feb 16 1988
|
5 | Jan 22 1928 - Feb 08 1929 | 戊 Yang Earth | 辰 Dragon | Feb 17 1988 - Feb 05 1989
|
6 | Feb 09 1929 - Jan 28 1930 | 己 Yin Earth | 巳 Snake | Feb 06 1989 - Jan 25 1990
|
7 | Jan 29 1930 - Feb 16 1931 | 庚 Yang Metal | 午 Horse | Jan 26 1990 - Feb 13 1991
|
8 | Feb 17 1931 - Feb 05 1932 | 辛 Yin Metal | 未 Sheep | Feb 14 1991 - Feb 02 1992
|
9 | Feb 06 1932 - Jan 24 1933 | 壬 Yang Water | 申 Monkey | Feb 03 1992 - Jan 21 1993
|
10 | Jan 25 1933 - Feb 13 1934 | 癸 Yin Water | 酉 Rooster | Jan 22 1993 - Feb 09 1994
|
11 | Feb 14 1934 - Feb 02 1935 | 甲 Yang Wood | 戌 Dog | Feb 10 1994 - Jan 30 1995
|
12 | Feb 03 1935 - Jan 23 1936 | 乙 Yin Wood | 亥 Pig | Jan 31 1995 - Feb 18 1996
|
13 | Jan 24 1936 - Feb 10 1937 | 丙 Yang Fire | 子 Rat | Feb 19 1996 - Feb 06 1997
|
14 | Feb 11 1937 - Jan 30 1938 | 丁 Yin Fire | 丑 Ox | Feb 07 1997 - Jan 27 1998
|
15 | Jan 31 1938 - Feb 18 1939 | 戊 Yang Earth | 寅 Tiger | Jan 28 1998 - Feb 15 1999
|
16 | Feb 19 1939 - Feb 07 1940 | 己 Yin Earth | 卯 Rabbit | Feb 16 1999 - Feb 04 2000
|
17 | Feb 08 1940 - Jan 26 1941 | 庚 Yang Metal | 辰 Dragon | Feb 05 2000 - Jan 23 2001
|
18 | Jan 27 1941 - Feb 14 1942 | 辛 Yin Metal | 巳 Snake | Jan 24 2001 - Feb 11 2002
|
19 | Feb 15 1942 - Feb 03 1943 | 壬 Yang Water | 午 Horse | Feb 12 2002 - Jan 31 2003
|
20 | Feb 04 1943 - Jan 24 1944 | 癸 Yin Water | 未 Sheep | Feb 01 2003 - Jan 21 2004
|
21 | Jan 25 1944 - Feb 11 1945 | 甲 Yang Wood | 申 Monkey | Jan 22 2004 - Feb 08 2005
|
22 | Feb 12 1945 - Feb 01 1946 | 乙 Yin Wood | 酉 Rooster | Feb 09 2005 - Jan 28 2006
|
23 | Feb 02 1946 - Jan 21 1947 | 丙 Yang Fire | 戌 Dog | Jan 29 2006 - Feb 17 2007
|
24 | Jan 22 1947 - Feb 09 1948 | 丁 Yin Fire | 亥 Pig | Feb 18 2007 - Feb 06 2008
|
25 | Feb 10 1948 - Jan 28 1949 | 戊 Yang Earth | 子 Rat | Feb 07 2008 - Jan 25 2009
|
26 | Jan 29 1949 - Feb 15 1950 | 己 Yin Earth | 丑 Ox | Jan 26 2009 - Feb 13 2010
|
27 | Feb 16 1950 - Feb 05 1951 | 庚 Yang Metal | 寅 Tiger | Feb 14 2010 - Feb 02 2011
|
28 | Feb 06 1951 - Jan 25 1952 | 辛 Yin Metal | 卯 Rabbit | Feb 03 2011 - Jan 22 2012
|
29 | Jan 26 1952 - Feb 13 1953 | 壬 Yang Water | 辰 Dragon | Jan 23 2012 - Feb 09 2013
|
30 | Feb 14 1953 - Feb 02 1954 | 癸 Yin Water | 巳 Snake | Feb 10 2013 - Jan 30 2014
|
31 | Feb 03 1954 - Jan 23 1955 | 甲 Yang Wood | 午 Horse | Jan 31 2014 - Feb 18 2015
|
32 | Jan 24 1955 - Feb 10 1956 | 乙 Yin Wood | 未 Sheep | Feb 19 2015 - Feb 07 2016
|
33 | Feb 11 1956 - Jan 29 1957 | 丙 Yang Fire | 申 Monkey | Feb 08 2016 - Jan 27 2017
|
34 | Jan 30 1957 - Feb 17 1958 | 丁 Yin Fire | 酉 Rooster | Jan 28 2017 - Feb 18 2018
|
35 | Feb 18 1958 - Feb 06 1959 | 戊 Yang Earth | 戌 Dog | Feb 19 2018 - Feb 04 2019
|
36 | Feb 07 1959 - Jan 27 1960 | 己 Yin Earth | 亥 Pig | Feb 05 2019 - Jan 24 2020
|
37 | Jan 28 1960 - Feb 14 1961 | 庚 Yang Metal | 子 Rat | Jan 25 2020 - ~~ 2021
|
38 | Feb 15 1961 - Feb 04 1962 | 辛 Yin Metal | 丑 Ox | ~~ 2021 - ~~ 2022
|
39 | Feb 05 1962 - Jan 24 1963 | 壬 Yang Water | 寅 Tiger | ~~ 2022 - ~~ 2023
|
40 | Jan 25 1963 - Feb 12 1964 | 癸 Yin Water | 卯 Rabbit | ~~ 2023 - ~~ 2024
|
41 | Feb 13 1964 - Jan 31 1965 | 甲 Yang Wood | 辰 Dragon | ~~ 2024 - ~~ 2025
|
42 | Feb 01 1965 - Jan 20 1966 | 乙 Yin Wood | 巳 Snake | ~~ 2025 - ~~ 2026
|
43 | Jan 21 1966 - Feb 08 1967 | 丙 Yang Fire | 午 Horse | ~~ 2026 - ~~ 2027
|
44 | Feb 09 1967 - Jan 28 1968 | 丁 Yin Fire | 未 Sheep | ~~ 2027 - ~~ 2028
|
45 | Jan 29 1968 - Feb 15 1969 | 戊 Yang Earth | 申 Monkey | ~~ 2028 - ~~ 2029
|
46 | Feb 16 1969 - Feb 05 1970 | 己 Yin Earth | 酉 Rooster | ~~ 2029 - ~~ 2030
|
47 | Feb 06 1970 - Jan 25 1971 | 庚 Yang Metal | 戌 Dog | ~~ 2030 - ~~ 2031
|
48 | Jan 26 1971 - Feb 14 1972 | 辛 Yin Metal | 亥 Pig | ~~ 2031 - ~~ 2032
|
49 | Feb 15 1972 - Feb 02 1973 | 壬 Yang Water | 子 Rat | ~~ 2032 - ~~ 2033
|
50 | Feb 03 1973 - Jan 23 1974 | 癸 Yin Water | 丑 Ox | ~~ 2033 - ~~ 2034
|
51 | Jan 24 1974 - Feb 10 1975 | 甲 Yang Wood | 寅 Tiger | ~~ 2034 - ~~ 2035
|
52 | Feb 11 1975 - Jan 30 1976 | 乙 Yin Wood | 卯 Rabbit | ~~ 2035 - ~~ 2036
|
53 | Jan 31 1976 - Feb 17 1977 | 丙 Yang Fire | 辰 Dragon | ~~ 2036 - ~~ 2037
|
54 | Feb 18 1977 - Feb 06 1978 | 丁 Yin Fire | 巳 Snake | ~~ 2037 - ~~ 2038
|
55 | Feb 07 1978 - Jan 27 1979 | 戊 Yang Earth | 午 Horse | ~~ 2038 - ~~ 2039
|
56 | Jan 28 1979 - Feb 15 1980 | 己 Yin Earth | 未 Sheep | ~~ 2039 - ~~ 2040
|
57 | Feb 16 1980 - Feb 04 1981 | 庚 Yang Metal | 申 Monkey | ~~ 2040 - ~~ 2041
|
58 | Feb 05 1981 - Jan 24 1982 | 辛 Yin Metal | 酉 Rooster | ~~ 2041 - ~~ 2042
|
59 | Jan 25 1982 - Feb 12 1983 | 壬 Yang Water | 戌 Dog | ~~ 2042 - ~~ 2043
|
60 | Feb 13 1983 - Feb 01 1984 | 癸 Yin Water | 亥 Pig | ~~ 2043 - ~~ 2044
|