US Stock Market Hours in Every US Time Zone

The New York Stock Exchange and Nasdaq both operate on Eastern Time, with regular trading hours of 9:30 AM to 4:00 PM, Monday through Friday (excluding market holidays). These hours are always quoted in Eastern Time, regardless of the time of year.

In Central Time, the market is open 8:30 AM–3:00 PM. In Mountain Time, 7:30 AM–2:00 PM. In Pacific Time, 6:30 AM–1:00 PM. In Alaska Time, 5:30 AM–12:00 PM. These four gaps stay constant year-round since all five zones shift for daylight saving together.

Hawaii-Aleutian Time is the exception: since Hawaii doesn't observe daylight saving, the market opens at 4:30 AM and closes at 11:00 AM Hawaii time during the winter months (Eastern Standard Time), but opens an hour earlier — 3:30 AM to 10:00 AM — once the mainland springs forward to Eastern Daylight Time each spring.

Pre-market trading typically runs from 4:00 AM Eastern, and after-hours trading typically extends to 8:00 PM Eastern, giving West Coast traders a much earlier and later window than the standard session alone.

Every major US exchange schedules itself in Eastern Time because New York has been the country's financial center since the 19th century; traders elsewhere are expected to convert to their own zone rather than the exchange adjusting to them.

This convention extends to earnings calls, IPO pricing announcements, and Federal Reserve policy statements, nearly all of which are scheduled and reported in Eastern Time regardless of where the company or the audience is physically located.

Traders on the West Coast and in Hawaii routinely build their entire workday around this Eastern-anchored schedule, since the market's hours don't shift to accommodate any zone but the one New York happens to be in.