In which section of Xero can you enter time spent on a specific project?

The correct choice for entering time spent on a specific project in Xero is found in the Time entries section. This section is specifically designed to accurately track and record the amount of time spent on various projects and tasks. Users can create entries indicating the duration of work performed, associate those entries with specific projects, and provide further details as necessary.

In this context, the Time entries functionality enables businesses to track work hours for accurate billing and project management purposes. This data can then be used to generate reports for analysis, enabling better forecasting and productivity assessments within the organization.

The other options, while related to project management in a broader sense, do not serve the primary function of recording time spent on projects. Project Management may provide an overview or tools related to managing overall project tasks, Task Overview might display tasks related to projects but does not specifically allow for time entry, and Billing focuses more on invoicing and payment processing rather than time tracking itself.