- You can begin any task early by adding it to your Timesheet - note: this assumes that your server is configured with certain permissions for timesheet users. Project Server does not prevent you from starting any task early.
- If a task extends beyond the planned 'End' date, the task will still appear on the Timesheet. Just because the planned or estimated completion date has passed does not mean that the task is completed. DATE does not determine task completion in project server when you are recording Actual Hours and Remaining Work.
- If you have completed a Task, either before, on or passed the estimated completion date, you should update the Remaining Work column.
If you are a Resource and using the Timesheet, then your Administrators should have made the 'Rem Work' column available to you to update on your Timesheet. You can do this for each task and submit it to the Project Manager, along with your acutals.
Project Managers should consistently be asking their team 'how much work is left on that task? Are you done yet?' This is the only way to accurately project true effort on tasks and projects.
If your projects are not effort-driven, then you are doing duration-based planning. However, I will strongly argue against using that as a model for resource forecasting because it doesn't allow a full or precise picture of resource allocation and demand.
I hope that this helps clear up any ambiguity to tasks on the timesheet and how to update or show tasks completed early or tasks that will need additional time.
Oh, and one final thing: PMs - please remember that the 'Work' column is only a summary of the 'Actual Work' + 'Rem Work' columns.
WORK = ACTUAL WORK + REMAINING WORK
You should NEVER update the Work column if you are using Timesheet actuals in Project Server. You would be overwriting resource actuals, which compromises data integrity. The only column you should be updating is the 'Rem Work' column.