It may be possible to change it, but its a hassle. I don't know if it is possible with something like an oven and wouldn't want to mess with something like that

It may be possible to change it, but its a hassle. I don't know if it is possible with something like an oven and wouldn't want to mess with something like that regardless. The solution to the time situation shouldn't be to be messing with electrical currents. That is just going to be a non-starter for so many people.