Hamilton Beach Microwave Oven In standby mode, press START/+30 SEC pad repeatedly to enter cooking time. In standby mode touch CLOCK pad once to pick out 12 hour clock, press again to choose out 24 hour clock. If you utilize Express Cook on an everyday basis, you may significantly appreciate this model's expanded set of features. All Hamilton Beach microwaves have digital controls and an LCD show. The greatest shows are large and straightforward to learn and function at a look.