Diwali (Deepavali) 2025 is on Monday, October 20. The festival is observed for five days around that date, with Dhanteras (Oct 18) and Lakshmi Puja (the main Diwali day, Oct 20) being the central day, followed by Govardhan Puja (Oct 22) and Bhai Dooj (Oct 23). Some local calendars may show small differences by a day, but October 20, 2025 is the widely listed main Diwali date.