How Do You Set Date And Time I Hit The Button, And It Shows Wrong D/t

Below are the steps to assist you in
setting the Date and Time on your calculator.
NOTE: The "Time Set", "AM/PM", "12/24" and "Format" associated keys are
on the faceplate above the respective key. Position the calculator so
that you can look directly over the keypad to see the notations.
Setting the date:
1. Press the CALENDAR/CLOCK Key. The default date will appear.
2. Hold the TIME SET key down for 3 seconds or until you see the first
digit begin to blink in the display.
3. Input the correct date.
4. Firmly press and release the TIME SET key. The first digit should
stop blinking and the date is then set.
Setting the time:
1. Press the CALENDAR/CLOCK key. The default time will appear.
2. Hold the TIME SET key down for 3 seconds or until you see the first
digit begin to blink in the display.
NOTE: The seconds will disappear.
3. Input the correct time. If you need to adjust to AM or PM, press
the AM/PM accordingly.
4. Firmly press and release the TIME SET key. The first digit should
stop blinking and the time is then set. The seconds will again be
displayed.
Follow by pressing the CLEAR key to return to the calculator mode. To
return to either the TIME or DATE, press the CALENDAR/CLOCK key to
toggle between them.