On my GE Cafe oven, how do I change the time display from 12 hours to 24 hours?

Try and light oven manualy first if it does not light check to see if gas has been turned off to oven mistake Check if fitted timer is on manuel or pilot is blocked and needs cleaning

try changing it to 12 hour time instead of military 24 hr time

Step 1 Locate the "Clock" button on the display. The display is located above the oven door. It clearly shows the time and has settings for temperature, time and cooking.
Step 2 Press and hold the "Clock" button until the time starts to blink.
Step 3 Set the time with the number pad. Ignore the colons and enter the number straight through. For example, if the current time is 10:08, just type 1-0-0-8.
Step 4 Set AM and PM by pressing the "#" button. Press "Start" to finish.

I had a Wolf 30F wall oven with a similar problem
after power outage. It wouldnt stop beeping with error message related
to temperature control. My solution was to turn power of at circuit
panel, then reset by pressing and holding the clear button for 5
seconds.

Also note: in my case I had to close the display
before switching the panel off. When I tried to the reset process with
the panel showing, it wouldn\'t reset.



To reset other
various parts of the control panel Instructions said:



Time-of-Day Clock

Immediately after the oven is installed, set
the 12-hour clock to the current time of day. It may need to be reset
after a prolonged power failure. The clock is visible on the control
panel during all modes. If the upper oven timer is set, the clock will
not be visible in the upper oven control panel display.



SETTING CLOCK

1) Touch CLOCK.

2) Touch number pads to
set current time of day.

3) Touch CLOCK or ENTER to start
clock.



24-HOUR CLOCK

The time-of-day clock can be
changed from a 12-hour clock to a 24-hour clock. After the clock has
been set, touch TEMPERATURE for three seconds, touch CLOCK, and then
touch ENTER. Follow the same sequence to change back to the standard
12-hour clock setting.



Fahrenheit to Celsius

The
oven can be changed from Fahrenheit (°F) temperature to Celsius
(°C).

To
provide sabbath feature (or to cancel this setting):
1. Push the PREHEAT pad and set the oven
temperature to 500°F/260°C or more using the UP
ARROW pad.
2. Push the PREHEAT pad within the next 2 seconds
for 3-4 seconds. A beep sounds and a number
appears in red to the right of the display. For the
conversion, "3" must be displayed. If another number
is displayed, push the PREHEAT pad and select
"3".
3. Push the UP or DOWN ARROW pad to change
from 12 hour to 9999 in the display, for no 12 hour
shut-off.
4. Push the CANCEL pad to confirm your choice.

Other Displays:
When proceeding through steps 1 and 2 in the
Temperature Scale Conversion or in the elimination
of the Sabbath feature /12-hour Shut-off time limit,
two other words can be seen in the display. One is ESC
with O in red. It cannot be changed. The other is USE or
SALE with 3 in red. This one is for factory use and should
stay on USE.

If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61

that is not a problem. I copied the instructions straight from the manual which you can also review by clicking here.
Using the clock and timer.
To Set the Clock The clock must be set to the correct time of day for the automatic oven timing functions to work properly. The time of day cannot be changed during a timed baking or self-cleaning cycle. Press the CLOCK pad. Press the HOUR and MIN + or – pads to set the time of day. Press the START pad. Make sure the clock is set to the correct time of day. To Set the Timer Press the KITCHEN TIMER ON/OFF pad. Press the HOUR and MIN + or – pads until the amount of time you want shows in the display. The maximum time you can enter in minutes is 59. Cooking times more than 59 minutes should be changed to hours and minutes. For example, enter 90 minutes as 1 hour, 30 minutes. If you make a mistake, press KITCHEN TIMER ON/OFF and begin again. Press the START pad. After pressing the START pad, SET disappears; this tells you the time is counting down, although the display does not change until one minute has passed. Seconds will not be shown in the display until the last minute is counting down. When the timer reaches :00, the control will beep 3 times followed by one beep every 6 seconds until the KITCHEN TIMER ON/OFF pad is pressed. The 6-second tone can be canceled by following the steps in the Special features of your oven control section under Tones at the End of a Timed Cycle. The timer is a minute timer only. The timer does not control oven operations. The maximum setting on the timer is 9 hours and 59 minutes. To Reset the Timer If the display is still showing the time remaining, you may change it by pressing the KITCHEN TIMER ON/OFF pad, then press the HOUR and MIN + or – pads until the time you want appears in the display. If the remaining time is not in the display (clock, delay start or cooking time are in the display), recall the remaining time by pressing the KITCHEN TIMER ON/OFF pad and then pressing the HOUR and MIN + or – pads to enter the new time you want. To Cancel the Timer Press KITCHEN TIMER ON/OFF pad twice.

If you need further assistance follow up with a comment and please let me know and i will be glad to assist you further. Thanks, Midwest-tek

If you mean simply adjusting the 12 hour LED to the time of day...Push the area on the glass control panel printed "clock". Enter time of day by using same "buttons" you use to adjust oven temps, as in 1-2-0-5, which would be 12:05. then push clock once more. If you meant changing from 12 hour time to 24 hour time, that is complicated, takes two people, and is on page 30 of your owner's manual.

The control is automatically set to turn off the oven after 12 hours baking or 3 hours broiling should you forget and leave the oven on. If you want to remvoe this feature do the following steps: 1. Press and hold, at the same time, the BAKE and BROIL buttons for 3 seconds, until the display shows "SF". 2. Press the DELAY START TIME button. The display shows "12Shdn" for 12 hour shut off. Press the DELAY START TIME button again. The display will show "no Shdn" for no shut off. 3. Press the START button.

Press and hold the bake and broil pads together for 2 seconds. SF should appear in the display. Press the clock pad, it will toggle between 12, 24, and off for a black display. Toggle to 12 and press start...Catriver..post back.