The table of correspondences between the heavenly stems and earthly branches in the Chinese lunar calendar.

The heavenly stems and earthly branches are an ancient Chinese astrological system used to track the passage of time. The ten heavenly stems and the twelve earthly branches are combined to create a 60-year cycle, with each year being represented by a unique combination. This is known as the cyclical year, and it is further broken down into 12-year cycles, each represented by an animal from the Chinese zodiac. The heavenly stems and earthly branches are still used in present-day China to determine auspicious dates for events like weddings and business deals.