Because the Chinese lunar calendar is not only composed of months and days
there is another system
that is, the solar term system
< p>The horoscopes use solar terms as the intersection points of the monthsThe solar terms are based on the degrees of the ecliptic
It almost coincides with the solar calendar
The time of each intersection They are almost always between the 5th and 7th of each month in the solar calendar
That is, calculated according to the orbit of the sun
The days of the month in the lunar calendar are calculated according to the orbit of the moon
p>
In this way, the yin, yang, sun and moon are combined to form a relatively complete calendar
The Bazi is a calculation method based on this calendar
For example< /p>
January 5, 1985 is the handover time of Xiaohan solar term at 4 pm
That is, the handover time of Xiaohan solar term is 4 pm
Although it is January 5th in the Gregorian calendar It is November 15th of the lunar calendar
But those born before 4 pm are considered to be born in the Zi month
Those born after 4 pm are considered to be born in the Chou month
Although your horoscope is August
But because it is after the beginning of winter
so it becomes Xu month according to the rules