Press 'clock', set the time using the timer buttons, then press 'clock' again to store.
Be aware that the microwave only uses a 12 hour clock, so you won't be able to store anything higher than 12:59.
Glad to help
June 2011
I can answer this question...
How do i set the time on the Panasonic Inverter NN-A574SBBTQ microwave?