PGDay Philly 2016 is a 1 day 1 track event with 7 talks from PostgreSQL Core Team members and other Contributors. It will be held on July 21 at Huntsman Hall at the Wharton School and is co-located with this year's DjangoCon https://2016.djangocon.us/.
See the local Philly PostgreSQL User Group Meetup page for more information.