I've always felt that if you can't handle changing a clock twice a year, then there's probably something fundamentally wrong with your ability to handle much more complex problems. Like deciding what's for lunch.
Knowing how to correctly handle time as a programmer is anything but trivial. It's so not-trivial we even have a database of historical changes in timezones and DSTs in order to maintain backwards compatibility for it.
When the power is restored, the appliance knows it's experienced a power cut, and asks for the current time.
Yes, this is completely ridiculous. No, I don't know why they designed the UI this way.