For Jain Diwali (Mahavira Nirvana day) in 2025:

• Main observance: Kartik Amavasya (the new moon day in Kartik). In the Gregorian calendar, many sanghs mark October 20, 2025 as the Diwali date; some calendars show a two-day Amavasya, but October 20 is commonly observed. The Lakshmi Puja timing cited in some sources (around 7:00–8:00 PM) is a Hindu practice and not a standard Jain ritual; Jain Diwali focus is on Mahavira’s Nirvana. Local sanghs may vary in exact puja timings. You can read more here .