Answer

If you mean Kartik Poonam / Kartik Purnima, Drik Panchang lists it as Tuesday, 24 November 2026. ( drikpanchang.com)

Explanation

This is the full moon day (Poonam) of the Kartik lunar month. ( drikpanchang.com)

Takeaway

For 2026, you can note 24 November 2026 for Kartik Poonam. ( drikpanchang.com)