ETC
The ETC (Estimate to Complete) field is available on a number of screens. In some instances, it may represent the users remaining effort estimate at an assignment level. In other instances, it may reflect the total remaining ETC value for a task or even project (simply depends on which screen you are viewing).
Depending on the Enable ETC Collection on Timesheet (unatime.etc_collection.enabled) property, end users can update their own ETC information via the Time >> ETC screen or via the Timesheet >> Eye Glasses. The value entered would represent the remaining effort for the project or task (as of a particular date depending on your policy). When supplying a new value or updating an existing value in this field, the associate Last Updated On value is stamped with the system's current date at the time the record is saved.
See ETC Wizard for more information about managing ETCs.