TD Ameritrade Extended-Hours Trading Time and Fees If you have a TD Ameritrade brokerage account, you have the ability to trade outside of normal session hours. These are from 9:30 am to 4:00 pm, EST. TD Ameritrade provides access to the pre-market session, which is from 7 am until 9:28 am, and the after-hours period, which lasts from 4:02 until 8 o’clock. 1 Based upon publicly available information as of January 21, 2018, TD Ameritrade was the first and only broker (among direct retail brokerage competitors) to offer clients the ability to trade securities 24 hours a day, Monday through Friday. All investments involve risk, including loss of principal. If you want to be up to speed with current trends, it’s time to check out overnight trading. This new service is being rolled out by a few brokerage firms, one of which is TD Ameritrade. Using its flagship platform thinkorswim, you can trade selected ETF’s 24 hours a day, 5 days a week.