If a timesheet has already been used to create an employee payment

If the hours entered in a timesheet have been used to calculate payroll and pay an employee, the entries in the Daily Entry columns are displayed in gray. While the grayed hours can be changed, the changes won't affect the payroll transactions already recorded.

If only some of the entries were used (this may occur if the timesheet's week spans two pay periods), those entries that have not been paid will not be gray and can be changed.