agnihotraṃ ca juhuyād ādyante dyuniśoḥ sadā / darśena cārdhamāsānte paurṇāmāsena caiva hi //
A Brahmana shall always offer the Agnihotra at the beginning or at the end of the day and of the night, and the Darsa and Paurnamasa (Ishtis) at the end of each half-month,