Because the number arrives without its workings. A person is told they were at sixty-two per cent utilisation and has no way to check it, so they discount it — and so does everyone else.
Time reports summarise logged and approved hours by project, person, phase and billability, for any period.
Every figure drills to the timesheet lines behind it. Utilisation is billable over available, with available taken from working patterns and leave rather than a flat assumption.
A project is forty per cent over its estimate. The report splits the overrun by phase and by task, showing that one integration took four times its estimate while everything else came in close.
They will not tell you whether someone is working hard. Utilisation measures how time was classified, and a low figure is as often a sales problem as a personal one.
Timesheets supply the hours, Nest the patterns and leave, and the plan the estimates that actuals are compared against.
Yes, less approved leave and holidays.
Yes, per task, phase and project, which is where estimating improves.
Yes. Hiding them tends to be what makes them distrusted.
Fourteen days, every module, no card. Or half an hour with someone who will run it on your own records and tell you where it does not help.