The day starts at sunrise, with the cool, heavy, earthy kapha dosha holding sway from 6 a.m. to 10 a.m. The middle of the day—from 10 a.m. to 2 p.m.—belongs to pitta, the hot, sharp, and fiery “king of digestion” dosha. And light, dry, airy vata rules the afternoon, from 2 p.m. until 6 p.m., after which the cycle begins again.