startCalendar on a date calendar adds the current time

[emmexx]

I have 2 calendars, the 1st one is a date calendar, the 2nd one is a datetime calendar.
I set the 1st calendar as startCalendar for the 2nd one.
When I select the date on the 2nd one, it starts from the date on the 1st one but when I get to the time selection, it starts from the current time. This is wrong.
Use case:
the 1st calendar is a trip date, the 2nd calendar is a meeting datetime (for that trip).
I expect that after selecting a trip for November 26th, I can select a meeting datetime for whatever time I like, not only after 3 o'clock because now it's 3 o'clock.

Any suggestion?

maxx