The ideal days of the week are Tuesdays and Fridays. The ideal Tithis for Durga Namaskar puja are Panchami, Ashtami, Navami, Chaturdashi, Paurnami or Amavasya days. The best time to do the Durgadeepa Pooja is during the Karkatakamaas month, which falls during Ashadhamaas and Sharath Kaala Navaratri.