AT&T 950 - Manual (Page 8)

Set time and date
I. Press and release \
options
\ until the screen displays:
12:00FlM 1-01
SET CLOCK
2 .
3
.
Use the keypad to change the blinking digit.
To enter a number that is less than 10, you must
enter a 0 before the number.
For example: To enter 1 o'clock, you must enter 01
and to enter the month of March, you must enter 03.
Use CALL LIST ® of CALL LIST ID to move to the
next digit. Use S) to toggle between AM and PM.
When the correct time and date (month first) are
shown, press \
options ] to save the new setting and
move to the next option.