Answer

In 2026, Sthanakwasi Paryushan starts on Tuesday, September 8, 2026. Jain Center of New Jersey lists “Shwetambar, Sthanakwasi & Achalgach Paryushan Begins” on that date, and Melbourne Shwetambar Jain Sangh also shows Paryushan starting on September 8, 2026. ( jaincenternj.org)

Explanation

Some Jain calendars also separately list “Shrimad Paryushan” beginning on September 9, 2026, so the exact observance can vary by sangh and tradition. ( jaincenternj.org)

Takeaway

If you mean the common Sthanakwasi observance, mark September 8, 2026. ( jaincenternj.org)