stockanalysis.com › stock-market-hoursTrading Hours: When Does The Stock Market Open and Close ... Jan 01, 2022 · The US stock market is open Monday to Friday from 9:30 a.m. to 4:00 p.m. Eastern Time. Many stocks can also be bought and sold in extended-hours trading. Pre-market trading opens at 4:00 a.m. and after-hours trading closes at 8 p.m. Stock trading hours are usually noted in Eastern Time because that's the time zone of New York, where Wall Street is.