Heavenly stems and earthly branches are referred to as stems and branches, which are used to arrange year numbers and dates in the lunar calendar.
The Heavenly Stems are: A, Yi, C, Ding, Wu, Ji, Geng, Xin, Ren, Gui, also called Heavenly Stems
The Earthly Branches are: Zi, Chou, Yin, Mao , Chen, Si, Wu, Wei, Shen, You, Xu and Hai are also called the twelve earthly branches.
The stems and branches are still divided into yin and yang: A, B, E, Geng, and Ren are the yang stems
B, Ding, Ji, Xin, and Gui are the yin stems
Zi, Yin, Chen, Wu, Shen, and Xu are Yang branches
Chou, Mao, Si, Wei, You, and Hai are Yin branches.
Match one heavenly stem and one earthly branch, and arrange them with the heavenly stem in front and the earthly branch in the back. The heavenly stem starts from A
The earthly branch starts from Zi, the Yang stem matches the Yang branch, and the Yin stem matches the Yin. Branches (yang stems do not match yin branches, and yin stems do not match yang branches)
There are sixty combinations, called "Sixty Years". In the past, our people used the sixty-year cycle to mark the year, month, day, and time.
1. Jiazi 2. Yichou 3. Bingyin 4. Dingmao 5. Wuchen 6. Jisi 7. Gengwu 8. Xinwei 9. Renshen 10. Guiyou
< p>11.Jia Xu 12. Yi Hai 13. Bing Zi 14. Ding Chou 15. Wu Yin 16. Ji Mao 17. Geng Chen 18. Xin Si 19. Ren Wu 20. Gui Wei21 .Jia Shen 22. Yi You 23. Bing Xu 24. Ding Hai 25. Wu Zi 26. Ji Chou 27. Geng Yin 28. Xin Mao 29. Ren Chen 30. Guisi
31. Jia Wu 32. Yi Wei 33. B Shen 34. Ding You 35. Wuxu 36. Jihai 37. Gengzi 38. Xin Chou 39. Ren Yin 40. Guimao
41. Jiachen 42. Yisi 43. Bingwu 44. Dingwei 45 .Wu Shen 46. Ji You 47. Geng Xu 48. Xin Hai 49. Ren Zi 50. Guichou
51. Jia Yin 52. Yi Mao 53. Bing Chen 54. Ding Ji 55. Wu Wu 56 .Jiwei 57. Gengshen 58. Xinyou 59. Renxu 60. Guihai