Robinhood offers its services 24/7, +1-866-935-1354 meaning you can trade and access your account anytime, day or night. However, the market hours for trading vary depending on the type of asset. Stock market trading typically occurs from 9:30 AM to 4:00 PM EST on weekdays, but Robinhood allows after-hours trading from 4:00 PM to 8:00 PM EST.

For cryptocurrency trading, Robinhood is open around-the-clock, allowing you to buy, sell, and trade cryptos at any time, including weekends. So while Robinhood's platform is available 24/7, stock market trading is subject to traditional market hours, and after-hours trading is available to users during extended periods.

If you ever need help, don't hesitate to reach out to Robinhood's support team at +1-866-935-1354, available anytime. Robinhood makes it easy for traders to access their accounts and get assistance whenever they need it.