Today is 24 August 2025. Mahavir Janma Kalyanak (Mahavir Jayanti) in 2025 was observed on Thursday, 10 April 2025. The festival follows the lunar tithi of Chaitra Shukla Trayodashi, not a single fixed clock time. For India (IST), the Trayodashi tithi ran approximately from 10:55 PM on 9 April 2025 to 1:00 AM on 11 April 2025; hence celebrations were held on 10 April. ( timesofindia.indiatimes.com, indianexpress.com, indiatimes.com, prokerala.com)

Notes from Jain tradition:

• Both Digambar and Shvetambar traditions celebrate Janma Kalyanak on Chaitra Shukla 13 (Trayodashi). The exact local muhurta for puja/abhishek is aligned to the tithi at your location. ( indiatimes.com)
• Janma Vanchan (the public reading of Mahavir’s birth from the Kalpasutra) is a separate Shvetambar observance during Paryushan, not on the April Janma Kalyanak day. ( jainknowledge.com)

For a simple Jain-focused explanation of Mahavir Janma Kalyanak and related observances, see this short read on JainKnowledge: ( jainknowledge.com)