New York, United States

New York operates on Eastern Standard Time (EST), which is UTC−5, and switches to Eastern Daylight Time (EDT), UTC−4, from March through November. The city never sleeps, but its clocks do spring forward every year.

When the opening bell rings on Wall Street at 9:30 AM, London traders are wrapping up their lunch at 2:30 PM and Tokyo’s markets have already closed for the day. This five-hour gap with London and fourteen-hour difference from Tokyo makes New York the critical bridge between European and Asian financial sessions.

As the most populous city in the United States and headquarters to the United Nations, New York is a primary node for international conference calls, diplomatic coordination, and global media broadcasts.