Yes, you can sell your stock at any time that the share market is open for trading. The stock exchange is typically open from 9:30 AM to 4 PM Eastern Standard Time, Monday through Friday. However, it is important to keep in mind that the share price can fluctuate throughout the day and that the price at which you sell your stock may be different from the price when you placed the sell order. Additionally, some stocks may have restrictions on when they can be sold, such as with "lock-up" agreements or insider trading rules. In these cases, it's important to be aware of the restrictions and to consult with a financial advisor if necessary.