1. Pre-Market trading session: 04:00 a.m. - 09:30 a.m. (ET)
2. Regular trading session: 09:30 a.m. - 04:00 p.m. (ET)
3. Post-Market trading session: 04:00 p.m. - 08:00 p.m. (ET)
The U.S. Stock settlement cycle is T+2, which is the trade date plus two trading days.