From any telephone:

1. Press Feature # * and enter in your password. (Default password ########).
2. Press Show and enter 0814.
3. Press Save then Show.
4. The option to change the Year will appear. If you do not need to change the year, press Next. If you
   need to change this value, press Chg, enter in two digits for the year and press Save then Next.
5. The option to change the Month will appear. If you do not need to change the month, press Next. If you
   need to change this value, press Chg, enter in two digits for the month and press Save then Next.
6. The option to change the Day will appear. If you do not need to change the date, press Next. If you
   need to change this value, press Chg, enter in two digits for the date and press Save then Next.
7. The option to change the Weekday will appear. If you do not need to change the weekday, press Next. If you
   need to change this value, press Chg, to select the weekday, and press Next.
8. The option to change the Hour will appear. Press Chg and enter in two digits for the hour in military format.
   Press Save then Next.
9. The option to change the Minutes will appear. Press Chg and enter in two digits for the minutes and press Save.
10. Press the On/Off button to take the phone out of programming mode.

From any telephone programmed as a programming port (which they all are enabled by default):

1. Press Intercom adn dial * # 7 4 6 *.
2. Press 01.
3. Enter in the date using military format, HHMM.
4. Press # to save.
5. Press Speaker to quit.

From extension 10:

1. Press Intercom and dial * # 0 1.
2. Enter in the date using MM/DD/YYformat.
3. Enter in the time using military format, HHMM.
4. Press Speaker to quit.

From any telephone programmed as a programming port (which they all are enabled by default):

1. Press Intercom and dial * # 7 4 6 *.
2. Press 01.
3. Enter in the date using military format, HHMM.
4. Press # to save.
5. Press Speaker to quit.