As my sibling commenter wrote, what your brain thinks is how it works may differ to how others' brains think it should be (e.g. older people used to analog clocks).

It would be neat if the system could offer a choice of UIs. On the same topic, one thing I really hate about Android's calendar is if you want to add an appointment e.g. 6 months in the future, you'd have to scroll through 6 months. I figured the fastest way for me to add things is to say "OK Google, add an appointment on (date) at (time)".