Edge cases are funny. If you set your time machine for 2:30am on the morning that clocks go forward, the machine rightly won’t go to a destination time that does not exist. But if you aim for 2:30 on the morning that clocks go backward an hour, which time do you arrive at? There are arguments for either, and reading the code didn’t clear anything up. Took one for science and did the experiment. I never would have guessed “both”, and neither would I.