You are unable to log hours for future dates on projects, tasks, or issues because the fields are disabled.
The system administrator can determine whether you are able to log hours for future dates within timesheets.
Contact your system administrator.
System administrators can update this setting as follows:
- Click Setup in the Global Navigation Bar.
- Expand Timesheets & Hours, then click Preferences.
- In the General Preferences section, select the Log hours for future dates.
- Click Save.
For more information about this and other option regarding timesheets and hours, see "Timesheet and Hour Preferences."