Note: Change the clock from the attendant's station -- usually extension 10, 100, or the first extension in the extension number range (i.e., 200 for 200 to 299 range , etc.) -- with handset resting on the cradle and the phone not in use.
Press FNC button
Dial 9
Dial #
Note: Use # and * to move cursor to desired
item to change
Press RECALL button to change
AM/PM setting
Press HOLD button for calendar
setting