Festivals News: Get ready to celebrate Diwali 2025, kicking off on October 20th with Dhanteras and culminating in the joyous Bhaiya Dooj. This five-day festival, obse. Amavasya Tithi is starting from October 20 - 03:44 PM and it will end on October 21 - 05:54PM so ideally it should be celebrated on October 20. October 18, 2025 07:17 PM to 08:20PM Trayodashi.