While on-hook, press the "SPCL" key and enter the set time of day feature code (021). Display will show "SET TIME OF DAY".
Use the keypad to enter the time in hours and minutes. Then press "*" for AM or "#" for PM. Display will show "SET DATE MM:DD:YYYY".
Use the keypad to enter the month, day and year. Backspace to correct mistakes by using the "MUTE" key. Display will show "SET DAY OF WEEK SUN".
Select the day of the week by scrolling through the selections. Press "#" to go forward and "*" to go back. When the desired day is displayed, press the "SPKR" key to end.