Das Lakshan Parva (Dash Lakshan) is a Digambar Jain festival of 10 days that follows the Shvetambar Paryushan and is dated according to the Jain lunar calendar. Because its Gregorian dates move each year, there isn’t a fixed fixed date in 2040.

• In general, once Shvetambar Paryushan ends (Samvatsari), Digambar Das Lakshan begins on the next suitable tithi (often in the Bhadrapada month, Aug–Sept) and lasts for 10 days, ending with the final observances of the period. For 2040, the dates would fall in September after the Shvetambar Paryushan, but the exact days depend on local lunar calculations and temple announcements. You should check a local Jain Panchang or your temple for the precise 2040 dates.

• If you want a community reference, some Jain temples publish a Das Lakshan Maha Parva schedule showing the start and end days for the year; these are year-specific and temple-specific.

• For context on what the Das Lakshan Parva is and how it relates to Paryushan (and the ten virtues observed), you can read concise explanations here.

Note: The exact 2040 dates should be confirmed with your local Jain calendar or temple because lunar-based dates can vary slightly by community and region.