Our company uses Jira and Tempo timesheets.
The problem is as follows: we need to work with time estimates, and we need to book our time in JIRA. However, nobody outside of a project should be able to view the actual values (like how much time I spent yesterday), even though they still need to have access to the project and see all the tasks.
So for example, I need my colleague from project B to browse freely through project A, but not seeing time logged.
I have some doubts that this is even possible because Time Spent, or effort estimation related fields in general, are used on various places, so the information could be only partially hidden.