Forex trading (foreign currency trading) can follow the same time frames as day trading, meaning it can be done in short bursts on a daily basis. But trading sessions for stocks are limited to exchange hours, generally 9:30 a.m. to 4 p.m. EST, Monday through Friday with the exception of market holidays. The forex market, on the other hand, remains active round-the-clock from 5 p.m. Sunday, through 5 p.m. EST Friday.