The solar branch refers to the time, year, month, day and hour of heavenly stems and earthly branches calendar, which are all expressed by a heavenly stem and a earthly branch. The daily branch refers to the trunk corresponding to the hour, and the year, month and day are all represented by trunk branches. The Japanese branch is the last two words in the eight characters.
According to the order of 60 jiazi, 60 days is a week, and it goes on and on, but the regularity of the big month, the small month and the leap month in the lunar calendar is not strong. The simple and reliable method is to check the almanac data and find the branch of a month.
The Japanese calendar is used, and the year, month, day and hour are all represented by a heavenly stem and a earthly branch. For example, the familiar Sino-Japanese War of 1894-1895 was this method. A stands for heavenly stems, which means so-called A, B, C, D, and earthly branches at noon, which means that the earthly branches of a day are represented by the calendar of earthly branches, such as Jiazi Day, and the daily branches are "Zi".