Good Afternoon, @quickkeith71143.
I hope your week is going well so far. You can easily change the time when QuickBooks Online will sign you out automatically after being inactive with a few easy steps.
I see that you asked the same question on a different thread in the Community. One of my colleagues has already responded to you with the best information and steps to help resolve this problem. Here's the link to the post.
If there's anything else I can help you with, just let me know. The Community is always here to have your back. Bye for now!