Will the robots trade 24/7?

No, by default, the bots only trade during the American cash session if the Automated strategies are selected. However, you can choose to use a semi-automated method by using the ATM feature (Ninjatrader 8 Feature) which will allow you to set up your own stop and targets. By using this feature, it will be up to you to close the trades out at the end of the day or carry them into the overnight session.