Thanks for visiting here today, @candeetrees.
I have some information about syncing Google Calendar with projects. Currently, the option to sync Google Calendar with the QuickBooks project is unavailable. You'll want to check for a third-party application that integrates Google Calendar with QuickBooks.
Here's the link: QuickBooks Apps. Just enter "Google Calendar" in the search field.

Feel free to also check this link in case you need help managing customer-related tasks: Topics about your company's income and customers.
You can always come back to this thread if you need help with anything else or with projects. I'm always here for you. Take care and have a good one.