Comment by DidYaWipe

Thanks for that detailed rundown.

As far as what people want most of the time, I would submit that way more than 99% of the time they want the appointment to start when the digits of the clock on their phone show a particular time... anywhere in the world.

And leave it to Apple to bury and obfuscate the option that supports the most-typical use case, with this "floating" setting. It also requires an extra step, every. damned. time. And of course it's asinine to omit the option from the devices on which it's arguably most important: MOBILE ones.

Final nitpick: Appointments don't show timezones when you look at them on iOS or the Mac. Even with "time zone support" turned on.