Hey,
I must've misunderstood you. I thought you wanted to use the time also on the calendar. If so, you have to check Show time from the advanced options of the calendar element. Check screenshot
And it would look like this:
However, if you want to show only a time picker, that's also possible by using a JS library. I Googled for them and used the first or second that showed up. Check the screenshot for the result and if that's what you want, I'll show you how to do it.
Kind regards,
Darko