Panasonic KX-T336 System Reference Manual page 1304

Operation chart for setting date and time
<Status 1>
Note:
In PITS system programming mode, you can return to
"Initial display for PITS system programming mode"
(Status 1) by pressing the END button.
PITS system programming
mode
SYS-PGM No?
Initial display for PITS system programming
mode.
The current date and time appears on
the display.
The MEMORY button indicator light goes
out.
Dialed number appears on the display.
Confirmation tone sounds.
The MEMORY button indicator lights in
red.
11-C-5
Dial "0 0."
• Dial the date and time.
• To clear a wrong entry, press the END
button, then dial "0 0" and enter again.
Press the MEMORY button to store the
entry.
Operation
Result from the
operation