You’re asking for Posh Dasham in 2026 (10th tithi of the month of Posh / Paush), but this depends on:

• Which samvat / calendar you are following (Vikram Samvat, Gujarati calendar etc.)
• Whether you mean Posh Dasham of Vikram Samvat 2082 (which overlaps with late 2025–early 2026) or the one that falls later in the English year 2026 (V.S. 2083, overlapping 2026–2027).
• Also, the exact tithi dates vary by location (India vs. overseas).

Because of these variations, I cannot reliably give a single exact English calendar date without a precise panchang reference for your location and sampraday.

For an accurate Jain date, please:

• Check a Jain panchang / Jain calendar for year 2026 for your city, and
• Look under the month Posh / Paush for Shukla or Krishna Dashami as applicable in your tradition.

If you tell me:

• Your country/city, and
• Which Jain calendar you use (e.g., Gujarati Jain Vikram Samvat panchang),

I can guide you how to read that panchang step‑by‑step.