When we tried to change the clock to standard time the time and temperature set keys do not work. Same with setting the oven temperature.
Based on this information you will want to access the control panel and check the keypad connection. Make sure that there is no corrosion. If this checks ok then replaced the membrane switch.
My clock now show military time .... does the membrane need to be replaced and what is the part number?
You will want to first try to reset the time to 12 hr clock time. To do so you will need to follow the following steps.
If you want to switch the clock to 24 hour time or switch from military back to regular time:
1. Press and hold the clock key for six seconds. The display will indicate the mode the clock is currently set to, 12 HR or 24 HR.
2. Press the SELF CLEAN key within six seconds to change the clock mode. To leave the setting as is, do not touch any keys.
3. Wait six seconds. The control panel will go back to the regular clock display, set to the new time standard. If you have set the clock to 24 hour time, the keypad will allow you to enter military time when setting the clock.