The "Timesheet" is the interface used for reporting time. It consists of a simple page with a header and a dynamic number of lines for users to record their time spent on tasks for a given week.

Before the reported time is pushed back to projects, Cerri Project converts each "Timesheet" entry into a "Timesheet detail" record. This is a simple data structure that logs the time a resource spends on a specific task for one day. It is computed from the "Timesheet" page and cannot be edited. Timesheet details help display the time spent during a specific period by project and/or by resource. The [Follow-up] and [Activity reports] tabs include views that display the "Timesheet detail" records.

It is also possible to request an adjustment for the time allocated to complete a task directly from the timesheet by requesting more or less time than originally planned. These requests are converted into "Remaining work request" records, which are computed from the "Timesheet" page and are not editable. The [Follow-up] and [Activity reports] tabs include views that display the "Remaining work request" records.