Philadelphia, United States

Philadelphia follows Eastern Standard Time (EST), UTC−5, switching to EDT at UTC−4 alongside New York and Washington DC. The city sits just 90 miles south of Manhattan, sharing the same timezone dynamics.

A noon lunch meeting in Philadelphia is simultaneous with noon in New York, 5 PM in London, and 1 AM the following day in Hong Kong. This makes cross-Atlantic scheduling straightforward for its large pharmaceutical and financial sectors.

Home to some of the oldest institutions in the Americas, Philadelphia remains a hub for healthcare, education, and legal services that demand punctual global coordination.