Suggestion/idea: combine this great calendar with time selection

[Rainer-Lang]

I often have the use case to select not only a date or range, but also a start date with time to end date with time. Or even on a single day to select start and end time.
So it's very often a combination between date (calendar, single day or range) and time (start and end time).

Maybe you could find a good solution to combine this calendar with time.