Guiwei lunar calendar

It's not the last year, and the time period from Xiaoshu to beginning of autumn is the last month:

……

1975 from light summer in July to beginning of autumn in August.

1980 from light summer in July to beginning of autumn in August

1985 from light summer in July to beginning of autumn in August

1990 July-August beginning of autumn.

1995 from light summer in July to beginning of autumn in August.

Beginning of autumn, July-August 2000.

Beginning of autumn, July-August 2005.

……

Calendars are not commonly used, but calendars are mostly used for numerology. Therefore, it is based on the solar term month, not the new moon, which is different from the Gregorian calendar year based on the lunar year. In fact, the year of "Ganzhi" which has been widely circulated in recent years began in beginning of spring that year. This is a numerology view, not a common folk practice.