Anant Chaudas is not a festival or vrat observed in Jainism. It is primarily recognized in Hindu traditions, where it refers to the 14th day of the waning moon (Chaturdashi) in the month of Bhadrapada.

In Jainism, the important observances around this time include Paryushan Parva and Samvatsari, which are significant for spiritual purification, fasting, and forgiveness.

If you are looking for dates of Jain festivals or vrats, please specify which Jain observance you are interested in, and I will be happy to provide information.