What time is it in dog days?

The specific time of dog days is as follows:

V: July 2022 16-July 25, 2022, *** 10 day; V: July 26th to August, 2022 14, ***20 days; Sanfu: August 2022 15-August 24, 2022, *** 10 day.

In the summer of 2022, July 26th to August 14 is the hottest day. The dog days consist of three days: the first, the middle and the last. The first and the last days are 10 days, and the second is 10 days and 20 days, so the dog days are 30 days and 40 days. The dog days in a year should be combined with the dog days on the first and last day.

In 2022, the dog days start from July 16, last for 40 days, and end on August 24th. Among them, the first time was from July 16 to July 25th, the second time was from July 26th to August 14, and the last time was from August 15 to August 24th.