It's been four months.

The heavenly stem in the year of dry support is Aheji, and April in the year of dry support is June. When the almanac is marked with the lunar calendar at the same time, in case of a leap month, the leap month is not marked with the division of the month or repeated, and its branches are the same as those of the previous month.

201May 5, 4-2065438+June 5, 2004, Mitsuki in the Sino-Japanese War.

May 6, 20 19 to June 5, 20 19, Mitsuki.

May 5, 2024-June 4, 2024, Mitsuki, Chen Jianian.

May 5, 2029-June 4, 2029, Mitsuki.

……

The solar terms are used to divide the months in the elephant trunk calendar. Correspondingly, the mantissa of the Gregorian calendar year is 4 and 9, and the month between the long summer and the awn is the last month.

These two algorithms have their own scope of application. The former, known as "building a shadow in the first month", has been confirmed since the Xia Dynasty and has continued to this day, becoming a part of traditional calendar culture.

The calendar month of the main branch is based on the solar term month, not the new moon. Because the lunar calendar is a combination of yin and yang, the change law of the moon phase is one month, and there is no "year". A year is based on the periodic movement of the earth around the sun. Only by setting a leap month can the "year" in the lunar calendar adapt to the actual "year" in time, so the "year" in the lunar calendar has only calendar characteristics and has no objective characteristics.