Sanjna or Samjna, also known as Saranyu and Sandhya, is a Hindu goddess and the chief wife of Surya, the Sun god. She is one of the earliest goddesses in the pantheon and is found in the Rigveda. Saranyu also appears in later texts including the Harivamsa and the Markandeya Purana. The most prominent legend of Saranyu is about her temporary abandonment of Surya and creation of Chhaya. In most texts, Saranyu is the mother of the death god Yama, the river-goddess Yami, the current Manu, the divine twin physicians Ashvins and the god Revanta.
