People working on a project track their time against services you defined in a budget. Tracking time you spend on a project enables you to have an insight into your project's profitability.
To see how much time is being spent on what and by whom, open any Budget and select the Time entries tab.
You can group time entries by time, period, people, service and tasks:
Specify a time interval using the date picker.
If you want to see how many hours were spent on a specific service, select one from the dropdown menu.
When you're done defining all the criteria you're interested in, click on the download button to create a report:
You can edit or delete time entries. Sort time entries by days and select an option you need from a menu.
Clicking edit will revel a new menu where you can move this time entry to another project / budget or assign to a Task:
You can also edit multiple time entries and move them to a different budget:
Read here more about giving your clients access to budgets.