Improved date/time selection
Right now setting the date is an irritating experience if you don't use "typical" (predefined) event dates: early morning, afternoon etc.
Home Assistant for example just shows a calendar, where we can specify the date and time (without additional clicking on both date and time to just type custom value; it's visible by default) *and* has predefined dates on the side. IMHO that's much more user-friendly if you don't use typical event dates - few less clicks every time I need to schedule tasks, it really would improve UX for people like me - extensively using calendar.
In the attachment I've submitted how it looks in Home Assistant, which - in my opinion - is perfectly balanced.