What Is the Ayurvedic Clock and How Does It Affect Your Daily Energy? The Ayurvedic clock is the doshic clock -- a 24-hour framework that divides the day and night into six alternating windows of Vata, Pitta, and Kapha activity, each approximately four hours long. These windows govern the body's natural rhythms of digestion, metabolism, mental activity, tissue repair, and sleep. Understanding the doshic clock explains why you are most productive between 10am and 2pm, why you crash at 3pm, why you get a second wind at 10pm, and why you feel heavy and foggy when you wake at 8am instead of 6am. The first time I mapped my own energy against the doshic clock I had a moment of complete recognition. Every pattern I had attributed to personality, caffeine, or circumstance was actually the doshic c