When Is Diwali 2025. Diwali will be celebrated on october 20, 2025. Tuesday, october 21st is day number 294 of the 2025 calendar year with 10 months, 19 days until diwali 2025.
Diwali is held on 15th day of the month of kartika in the hindu calendar and celebrates the festival of lights. Diwali will be celebrated on october 20, 2025.