If the day of July 2, 2002 1 year1day begins to fall, then the dog days are the first days: July 21day-July 30; Midnight: July 3 1 Day-August 9; Terminal: August 10-August 19. In this algorithm, the dog days last for 30 days.

If July 20021year 1 1 day is the first day of subduction, then the first subduction time is July 1 1 day-July 20th; Midrange: July 2 1 day-August 10; Terminal: August 10-August 19. In this algorithm, the dog days last for 40 days.

The period from mid-July to mid-August is the hottest time of the year. The time of lodging in dog days is not fixed every year, and the length of lodging is also different.

At present, there are two versions of the time of 202 1 year, one is July 2 1 day, and the other is July 202 1 year1day. This is related to the algorithm "Summer Solstice Three Geng", which is the third "Geng Day" from the summer solstice.

food culture

As the saying goes, "cold has three or nine, and heat has three volts." During the dog days, on the one hand, the ancients used cool drinks to escape the heat, on the other hand, they held corresponding customs activities, such as "drinking to avoid evil". Over time, a unique food custom culture has been formed.

China is a vast country with different customs in different dynasties and regions. For example, in the Northern Song Dynasty, the summer diet was a "green purse", and the "green lotus" was a lotus leaf, which had the effect of clearing away the heat.

On dog days in Taizhou, Zhejiang, the elderly have the custom of eating chicken porridge, which is called "Buyang". In a word, the origin of the three-dog food custom in China is related to the "Fu La Festival" written in the Han Dynasty, which was originally an activity to celebrate agriculture. This also reflects the richness and variety of China's food customs culture from one side.