How do I set or change the date and time on the VISTA-20P?

To set the date and time, all partitions must first be disarmed, then enter your master code + [#] + [6] + [3], and press [*] when the current time and date are displayed. Using the cursor, enter the 2-digit hour, 2-digit minute, press [1] for PM or [2] for AM, the last two digits of the year, the 2-digit month, and the 2-digit day. Press [*] when the cursor is at the last digit to exit, or wait 30 seconds. (Page 25)