Totally understand. That’s why I created my custom pure Bubble time picker. I wanted a different UI.
I will be updating it to leverage the time zone capabilities of Bubble’s new Date/TimePicker element. I’ll wrap it in a reusable and hide it to take advantage of its capabilities without exposing its UI. That will keep my solution custom, “pure” Bubble, and plugin-free. 
(I’m a bit disappointed that Bubble’s new time zone functionality is limited to their input element and can’t be used for arbitrary date types, but oh well. Just gotta roll with it. 
)
I also have a pure Bubble date picker in the works, which I’ll be posting about early next year. It’s really sweet to have full control over the calendar UI with only no-code logic. 
Anyway, good luck!