Under normal circumstances, one volt 10 day, two volts for 20 days, and three volts 10 day. The days of one volt and three volts are fixed, both of which are 10 days, and the days of two volts range from 10 days to 20 days.

Three volts schedule in 2022:

One volt: from July 6, 2022 to July 25, 2022, with a total duration of * * * 10 days.

Volt: July 26th, 2022 ~ August, 202214th, lasting for 20 days.

Volt: August 2022 15 to August 24, 2022, with a total duration of * * * 10 days.

Introduction of three volts

Three volts, a general term for initial, intermediate and final volts, is the hottest period in a year. "Fu" means that Yin qi is forced to hide underground by Yang qi. The dog days appear in the Gregorian calendar from mid-July to mid-August every year, and its climatic characteristics are high temperature, low air pressure, high humidity and low wind speed. The so-called "heat is in three volts", which can be divided into initial, intermediate and final volts, and its date is determined by the coordination of solar terms and the date of the trunk and branch.