That's great information to know, Andie. Many thanks for sharing your knowledge. To you this is perhaps common knowledge, but to many of us it's a whole unknown science.
How long does the cake have to be at the relevant temperature for it to cook correctly?
Once it reaches that temp, it is done. It doesn't hurt for it to be in there a few minutes longer, these are sturdy cakes that are not going to overcook like a sponge cake.