Creating a time reporting custom column
You can use the Time spent custom column to track how much time a user has spent on a specific task. This value can then be compared to the original estimate to see how accurate it was. Time spent is entered manually by the assigned user, or added using a timesheet.
1. Create a custom column. See Adding custom project columns for more information.
2. Set the Type to Time spent.
Two new options will appear in the Create custom column dialog box.
3. Select Use this column for time reporting and show it in the To Do List to use the time entered in this column to report in the timesheet, as well as make the column visible in the To Do List.
4. Select Update work remaining automatically when this column is updated if you want the time entered into this column to automatically affect the time remaining.
5. Click OK to save.