If you mean Paush Krishna Dashami in the Jain sense, it falls on Saturday, January 2, 2027 in the Panchang data I found for 2027. In Jain tradition, this tithi is associated with Bhagwan Parshvanath Janma Kalyanak. ( astrologydivine.com)

Some Jain communities may observe it slightly differently depending on their local Panchang / sangh maryada, so the exact observance can vary by tradition and location. ( jainknowledge.com)