Electric range not working properly
The oven and the burners are probably 240 V and the clock and light 120 V. This suggests you have lost one leg. It may be the breaker or it may be in the range. Get a voltage tester and first check at the plug and the range. If you have no 240V at the plug or cable then check the voltage at the double pole breaker outputs. If it was before the breaker, then you would have other circuits unpowered and you don't report that.

If the range has a plug, then it is easy to check the voltages at the plug. Then check the voltages at the connection block on the back of the range.