extended-hours trading


Written By: Ehsan Jahandarpour

Since 1985, the regular trading hours for major exchanges in the United States, such as the New York Stock Exchange and the Nasdaq stock market, have been from 9:30 a.m. to 4:00 p.m. Eastern Time (ET).
https://en.wikipedia.org/wiki/Extended-hours_trading#:~:text=Since%201985%2C%20the%20regular%20trading,p.m.%20Eastern%20Time%20(ET).