How long will my limit, sell-stop, or stop-limit sell order remain in effect?
You can choose to have these orders remain open for the following durations:
Day. Your order remains open through the end of the trading day, and then will expire if it does not execute during the trading day. If you place a stop or limit order after market close, the order will carry over to the next trading day.
Good ‘Til Canceled. Your order remains open until your order fills completely, you cancel the order, or 60 calendar days have passed and the order expires.