KPanasonic X-TAW848
- Use phone with intercom number 101. It will change the time for all phones.
- Press PROGRAM (or PAUSE, if you don't have a PROGRAM button.)
- Dial programming access code (probably *#1234)
- Press NEXT (SP-PHONE, if you are not using the programming template).
- You'll see "Date & Time Set" on your phone's display
- Press STORE
- Press NEXT to see hours and minutes.
- Use your keypad to change the hour
- Press STORE.
- Press HOLD.
- Press PROGRAM