When is the slight cold in the lunar calendar?

The netizen's question did not specify the date when the lunar calendar was slightly cold in a certain month. The 24 solar terms of the lunar calendar irregularly appeared between the 4th and 7th of the first month and the 20th and 23rd of the last month of the Gregorian calendar, while the 24 solar terms of the lunar calendar were accurate to the latitude and longitude of the Gregorian calendar, which was inconsistent with the Gregorian calendar. 20 10 Lunar slight cold is 1.5, and severe cold is on the 20th day of Gregorian calendar. It must be inconsistent every year.