Samvatsari 2025 date (last day of Paryushan) is observed differently by traditions:

• Shwetambar (Deravasi): August 28, 2025 (Thursday) in many calendars.
• Shwetambar (Sthanakvasi): August 27, 2025 (Wednesday) in some calendars.
• Some sources prefer August 27, 2025 as the common date for many Shwetambar communities; other local temples may mark August 28 depending on local calculations.

If you want, you can check these JainKnowledge pages for the different observations:

• Deravasi/Sthanakvasi dates in 2025
• Date for Samvatsari 2025