- Press the [Menu] key.
- Press the [▲] or [▼]key to display [System Settings], then press the [OK] key
- Press the [▲] or [▼]key to display [Timer Settings], then press the [OK] key
- Press the [▲] or [▼] key to display [Sleep Mode Timer], then press the [OK] key
- Press the [▲] or [▼] key to set the date, then press the [OK] key