Know 5 Days of Diwali Festival: Day 1 of Diwali festival is on October 25, Friday - Dhanteras. Day 2 of Diwali festival is on October 26, Saturday - Hanuman Puja or Chhoti Diwali. Day 3 of Diwali festival is on October 27, Sunday - Lakshmi Puja, Diwali. Day 4 of Diwali festival is on October 28, Monday - Govardhan Puja.