Paryushan is an important Jain festival observed annually, but the exact start date varies each year and is different for the Shwetambar and Digambar sects due to differences in their calendars.

For 2024:

• Among Shwetambar Jains, Paryushan is expected to begin on August 31, 2024, and will last for 8 days.
• Among Digambar Jains, the festival, known as Das Lakshan Parva, usually starts one day after the Shwetambar Paryushan, so it is expected to start on September 1, 2024, and lasts for 10 days.

The exact dates may vary based on local calendars and traditions, so it is always best to consult your local Jain temple or community for confirmation.