When was A mentioned in the old almanac?

Zi Chou Yin Mao is the earthly branch.

Time is expressed in local branches, such as 3 noon 15 minutes.

Correspondence: Zi Shi (23-65438+ 0 the next day), Chou Shi (1-3), Yin Shi (3-5), Shi Mao (5-7), Chen Shi (7-9) and Shi Si (9- 165438+). Shenshi (15- 17), Youshi (17- 19), Qishi (19-2 1), Shihai (2/kloc-0).

After the sun dries, the local branch is added to indicate the year, such as the Sino-Japanese War and the Reform Movement of 1898.

When there is no armor, this statement