Das Lakshana Parva (Digambar) ends with Anant Chaturdashi, and the forgiveness day is called Kshamavani Parva. It is observed after Anant Chaturdashi and is the main occasion for confessing faults and seeking forgiveness. The exact date shifts each year according to the lunar calendar and your sangh’s calendar, but it typically falls in the August–September period (late monsoon). For 2025 it is projected to be in late August to early September; please check your local sangh calendar for the precise day. You can read more here