Jenn-Air clock set for 24-hour

Question

After a house power failure, I've tried to reset my microwave clock back to display the 24-hour day clock instead of the A.M. and P.M. stuff. The instructions (on page 9) say to follow the same steps "in the 24 hour clock mode," but where do I find this "clock mode?" I have a model #JMV8208BAS over the range microwave. Can you help me? I'd like to insert the information into my microwave booklet for future reference.