Ayudha Puja is a Hindu observance that falls on the ninth day of the bright half of the moon's cycle of 15 days in the month of September/October, popularly a part of the Navaratri festival. From Wikipedia
Drik Panchang places the Dashami tithi from 7:01 pm on October 1 to 7:10 pm on October 2, with afternoon puja windows clustered around 2 pm.
