The day (Sun Pillar) is composed of the heavenly stems and the earthly branches. The heavenly stems have the five elements of the heavenly stems, the earthly branches have the five elements of the earthly branches, and the stems and branches are divided into the five elements of Nayin. If you want to check the five elements of the day, you can find a book with the stems and branches. To query the perpetual calendar of the five elements, the fastest way is to use the eight-character online ranking system on the Zhouyi website to help us find out the five elements of the day. Just enter the date and time to get the five elements information.
For example: The corresponding stems and branches on the 28th day of July in the year 2006 (Dog) of the lunar calendar are: Bingxu Bingshen Renwu Yisi, the stems and branches of the day are: Renwu, the five elements of the heavenly stems belong to yang and water, the five elements of the earthly branches belong to yin and fire, and the five elements of Nayin are Willow wood.