The running timer appears in the page bar. The Week page shows time by project and day, and a day cell opens a new entry for that project. Projects can set a client Contact, billable default, hourly rate and hour budget. Reports include a client breakdown and CSV export.
Issues, To-dos and Contacts can start linked timers. Completed entries can be split. On the website invoice editor, completed billable entries with a Contact and rate can be added as line items. Entries attached to a draft are held from other invoices; issuing marks them Invoiced, and deleting a draft releases them.