In 2026, Radha Ashtami will be observed on September 19, aligning with the principles outlined in classical Panchang. For the festival to be deemed valid, the Ashtami tithi must coincide with both sunrise and Madhyahna. This foundation in traditional texts, such as Dharma Sindhu, emphasizes the variations in fasting practices within different Vaishnava traditions, highlighting the importance of the prescribed kala for authentic Hindu observance.
