I've got some steps that can help you track the time, Stephen84.

You can use the Single time activity option in the + New window, or go to the Time Activity section in your client's project.

To access the Single time activity, here's how:

1. On the left panel, click the + New button.
2. Select Single time activity.
3. Choose the Date, Name, Cost rate(/hr), Customer/Project, Class and then enter the Time.
4. You can also add a Description.
5. Click Save and close.

For Time Activity in projects, you can follow these steps:

1. Go to Projects on the left navigation menu.
2. Select the project name, and then Add to project drop-down.
3. Choose Time. This will route you to the Single time activity page.
4. Enter the information and click Save and close.

For more information about time in projects, check out this article: Set up and create projects in QuickBooks Online.

Please let me know if you need anything else. I'd be glad to help you some more. Thanks.