Use Time Picker for a Time Range

Edit your contact-form and add a time selection with the time button. In the properties you can edit min-hour and max-hour.

Thanks for the reply.
I want user to be able to pick a time range in one field.

I am looking for something like this:
https://jsfiddle.net/jrweinb/MQ6VT/

I want user to be able to pick a time range in one field.

Thanks
CM