Poṣa‑daśamī (Poush Dashami) is the tenth day of Poṣha/Māgsar and marks the birth of Parśvanātha. In 2025, it is commonly observed around December 14, 2025 (Vad Dashami), but the exact day can vary by local lunar sighting and regional Jain Panchangs. Digambar and Śvetambar calendars may have slight differences in the observance date, though the spiritual significance remains the same. You should check your temple’s calendar for the precise date in your area. You can read more here