If by “pankhi” you mean Pakshi / Pakkhi observance in the Jain calendar, the June 2026 Jain calendar lists these Parv Tithis: June 4 (Krishna Ashtami), June 8 (Ashtami), June 14 (Krishna Chaturdashi), June 22 (Shukla Ashtami), and June 28 (Shukla Chaturdashi). ( susjainmandir.com)

If your Sthānakvāsī / local sangh follows Chaturdashi-based Pakhi, then the main Pakhi days in June 2026 would be June 14 and June 28. ( susjainmandir.com)

If you meant a different Pakhi tithi rule in your tradition, the date can change slightly by local Jain panchang. ( jainknowledge.com)