Why are project leaders able to see other project hours on the timesheet?

Scenario:
There are many projects and all of them have associated project leaders. The approval path is set up in such a way that when the user submits a timesheet, it should go to the appropriate project leader. However, when a user enters time for many projects and submits the timesheet, all the project leaders are able to see the time entered against all the projects.

Resolution:
This happens when the project leader permission associated to the users have a 'View All' sub permission enabled for the permission called 'Approvals' on the timesheet time information category. Disabling this sub permission resolves this issue.

• Log into Web TimeSheet as the administrator.
• Select Permissions from the left pane, under the User/Departments category.
• Edit the Project Leader permission.
• Expand the permission called Approvals.
• Under the Timesheet > Time Information, uncheck the option View All.
• Click Save.