An event-a-day calendar to help you navigate high season in the world’s culture capital.

Every summer, the East End turns into one big service economy. Here’s how the Hamptons’ other half lives.

Problem: Fifty-three-year-old FDNY fire chief. Working in North Tower on 9/11 when South Tower collapsed. Narrowly escaped death; saw many colleagues killed. Post-traumatic stress disorder symptoms include nightmares, sleep loss, and severe anxiety. Experiments with cutting-edge virtual-reality therapy.

An Upper East Side developer brings penthouse living to the young-professional set.